diff --git a/helm-charts/agentqna/templates/_helpers.tpl b/helm-charts/agentqna/templates/_helpers.tpl
index aee028e1..1ce711ff 100644
--- a/helm-charts/agentqna/templates/_helpers.tpl
+++ b/helm-charts/agentqna/templates/_helpers.tpl
@@ -54,7 +54,9 @@ app.kubernetes.io/instance: {{ .Release.Name }}
 Create the name of the service account to use
 */}}
 {{- define "agentqna.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
+{{- if .Values.global.sharedSAName }}
+{{- .Values.global.sharedSAName }}
+{{- else if .Values.serviceAccount.create }}
 {{- default (include "agentqna.fullname" .) .Values.serviceAccount.name }}
 {{- else }}
 {{- default "default" .Values.serviceAccount.name }}
diff --git a/helm-charts/agentqna/templates/crag.yaml b/helm-charts/agentqna/templates/crag.yaml
index c6449c28..94d3c8fa 100644
--- a/helm-charts/agentqna/templates/crag.yaml
+++ b/helm-charts/agentqna/templates/crag.yaml
@@ -28,6 +28,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "agentqna.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/agentqna/templates/docretriever.yaml b/helm-charts/agentqna/templates/docretriever.yaml
index 45c13e29..4bc30e07 100644
--- a/helm-charts/agentqna/templates/docretriever.yaml
+++ b/helm-charts/agentqna/templates/docretriever.yaml
@@ -28,6 +28,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "agentqna.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/agentqna/templates/serviceaccount.yaml b/helm-charts/agentqna/templates/serviceaccount.yaml
new file mode 100644
index 00000000..a04ff655
--- /dev/null
+++ b/helm-charts/agentqna/templates/serviceaccount.yaml
@@ -0,0 +1,16 @@
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "agentqna.serviceAccountName" . }}
+  labels:
+    {{- include "agentqna.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}
diff --git a/helm-charts/agentqna/values.yaml b/helm-charts/agentqna/values.yaml
index 64fa95ce..ae85c622 100644
--- a/helm-charts/agentqna/values.yaml
+++ b/helm-charts/agentqna/values.yaml
@@ -7,6 +7,26 @@
 
 replicaCount: 1
 
+imagePullSecrets: []
+nameOverride: ""
+fullnameOverride: ""
+
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: true
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
+podAnnotations: {}
+
+podSecurityContext: {}
+  # fsGroup: 2000
+
 securityContext:
   readOnlyRootFilesystem: true
   allowPrivilegeEscalation: false
@@ -102,6 +122,10 @@ global:
   https_proxy: ""
   no_proxy: ""
   HUGGINGFACEHUB_API_TOKEN: "insert-your-huggingface-token-here"
+  # service account name to be shared with all parent/child charts.
+  # If set, it will overwrite serviceAccount.name.
+  # If set, and serviceAccount.create is false, it will assume this service account is already created by others.
+  sharedSAName: "agentqna"
   # set modelUseHostPath or modelUsePVC to use model cache.
   modelUseHostPath: ""
   # modelUseHostPath: /mnt/opea-models
diff --git a/helm-charts/audioqna/templates/_helpers.tpl b/helm-charts/audioqna/templates/_helpers.tpl
index cf5a0e50..a9bcd9f8 100644
--- a/helm-charts/audioqna/templates/_helpers.tpl
+++ b/helm-charts/audioqna/templates/_helpers.tpl
@@ -54,7 +54,9 @@ app.kubernetes.io/instance: {{ .Release.Name }}
 Create the name of the service account to use
 */}}
 {{- define "audioqna.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
+{{- if .Values.global.sharedSAName }}
+{{- .Values.global.sharedSAName }}
+{{- else if .Values.serviceAccount.create }}
 {{- default (include "audioqna.fullname" .) .Values.serviceAccount.name }}
 {{- else }}
 {{- default "default" .Values.serviceAccount.name }}
diff --git a/helm-charts/audioqna/templates/deployment.yaml b/helm-charts/audioqna/templates/deployment.yaml
index 3f4ffd6b..4282fc30 100644
--- a/helm-charts/audioqna/templates/deployment.yaml
+++ b/helm-charts/audioqna/templates/deployment.yaml
@@ -28,6 +28,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "audioqna.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/audioqna/templates/serviceaccount.yaml b/helm-charts/audioqna/templates/serviceaccount.yaml
new file mode 100644
index 00000000..dea9789a
--- /dev/null
+++ b/helm-charts/audioqna/templates/serviceaccount.yaml
@@ -0,0 +1,16 @@
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "audioqna.serviceAccountName" . }}
+  labels:
+    {{- include "audioqna.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}
diff --git a/helm-charts/audioqna/values.yaml b/helm-charts/audioqna/values.yaml
index e6f5c783..8ea01bb4 100644
--- a/helm-charts/audioqna/values.yaml
+++ b/helm-charts/audioqna/values.yaml
@@ -14,14 +14,25 @@ image:
   # Overrides the image tag whose default is the chart appVersion.
   tag: "latest"
 
-port: 8888
-service:
-  type: ClusterIP
-  port: 3008
+imagePullSecrets: []
+nameOverride: ""
+fullnameOverride: ""
 
-nginx:
-  service:
-    type: NodePort
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: true
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
+podAnnotations: {}
+
+podSecurityContext: {}
+  # fsGroup: 2000
 
 securityContext:
   readOnlyRootFilesystem: true
@@ -34,6 +45,15 @@ securityContext:
   seccompProfile:
     type: RuntimeDefault
 
+port: 8888
+service:
+  type: ClusterIP
+  port: 3008
+
+nginx:
+  service:
+    type: NodePort
+
 nodeSelector: {}
 
 tolerations: []
@@ -57,6 +77,10 @@ global:
   https_proxy: ""
   no_proxy: ""
   HUGGINGFACEHUB_API_TOKEN: "insert-your-huggingface-token-here"
+  # service account name to be shared with all parent/child charts.
+  # If set, it will overwrite serviceAccount.name.
+  # If set, and serviceAccount.create is false, it will assume this service account is already created by others.
+  sharedSAName: "audioqna"
   # set modelUseHostPath or modelUsePVC to use model cache.
   modelUseHostPath: ""
   # modelUseHostPath: /mnt/opea-models
diff --git a/helm-charts/chatqna/templates/_helpers.tpl b/helm-charts/chatqna/templates/_helpers.tpl
index 63cc642b..ab47b7b4 100644
--- a/helm-charts/chatqna/templates/_helpers.tpl
+++ b/helm-charts/chatqna/templates/_helpers.tpl
@@ -54,7 +54,9 @@ app.kubernetes.io/instance: {{ .Release.Name }}
 Create the name of the service account to use
 */}}
 {{- define "chatqna.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
+{{- if .Values.global.sharedSAName }}
+{{- .Values.global.sharedSAName }}
+{{- else if .Values.serviceAccount.create }}
 {{- default (include "chatqna.fullname" .) .Values.serviceAccount.name }}
 {{- else }}
 {{- default "default" .Values.serviceAccount.name }}
diff --git a/helm-charts/chatqna/templates/deployment.yaml b/helm-charts/chatqna/templates/deployment.yaml
index ced87387..6f19fee1 100644
--- a/helm-charts/chatqna/templates/deployment.yaml
+++ b/helm-charts/chatqna/templates/deployment.yaml
@@ -28,6 +28,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "chatqna.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/chatqna/templates/serviceaccount.yaml b/helm-charts/chatqna/templates/serviceaccount.yaml
new file mode 100644
index 00000000..3ff18985
--- /dev/null
+++ b/helm-charts/chatqna/templates/serviceaccount.yaml
@@ -0,0 +1,16 @@
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "chatqna.serviceAccountName" . }}
+  labels:
+    {{- include "chatqna.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}
diff --git a/helm-charts/chatqna/values.yaml b/helm-charts/chatqna/values.yaml
index 0082c2ab..5558cf62 100644
--- a/helm-charts/chatqna/values.yaml
+++ b/helm-charts/chatqna/values.yaml
@@ -14,14 +14,25 @@ image:
   # Overrides the image tag whose default is the chart appVersion.
   tag: "latest"
 
-port: 8888
-service:
-  type: ClusterIP
-  port: 8888
-
-nginx:
-  service:
-    type: NodePort
+imagePullSecrets: []
+nameOverride: ""
+fullnameOverride: ""
+
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: true
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
+podAnnotations: {}
+
+podSecurityContext: {}
+  # fsGroup: 2000
 
 securityContext:
   readOnlyRootFilesystem: true
@@ -34,6 +45,15 @@ securityContext:
   seccompProfile:
     type: RuntimeDefault
 
+port: 8888
+service:
+  type: ClusterIP
+  port: 8888
+
+nginx:
+  service:
+    type: NodePort
+
 nodeSelector: {}
 
 tolerations: []
@@ -67,6 +87,10 @@ global:
   https_proxy: ""
   no_proxy: ""
   HUGGINGFACEHUB_API_TOKEN: "insert-your-huggingface-token-here"
+  # service account name to be shared with all parent/child charts.
+  # If set, it will overwrite serviceAccount.name.
+  # If set, and serviceAccount.create is false, it will assume this service account is already created by others.
+  sharedSAName: "chatqna"
   # set modelUseHostPath or modelUsePVC to use model cache.
   modelUseHostPath: ""
   # modelUseHostPath: /mnt/opea-models
diff --git a/helm-charts/codegen/templates/_helpers.tpl b/helm-charts/codegen/templates/_helpers.tpl
index 97a5ea9f..2db3b1dc 100644
--- a/helm-charts/codegen/templates/_helpers.tpl
+++ b/helm-charts/codegen/templates/_helpers.tpl
@@ -54,7 +54,9 @@ app.kubernetes.io/instance: {{ .Release.Name }}
 Create the name of the service account to use
 */}}
 {{- define "codegen.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
+{{- if .Values.global.sharedSAName }}
+{{- .Values.global.sharedSAName }}
+{{- else if .Values.serviceAccount.create }}
 {{- default (include "codegen.fullname" .) .Values.serviceAccount.name }}
 {{- else }}
 {{- default "default" .Values.serviceAccount.name }}
diff --git a/helm-charts/codegen/templates/deployment.yaml b/helm-charts/codegen/templates/deployment.yaml
index 7e271b54..d473b7a8 100644
--- a/helm-charts/codegen/templates/deployment.yaml
+++ b/helm-charts/codegen/templates/deployment.yaml
@@ -28,6 +28,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "codegen.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/codegen/templates/serviceaccount.yaml b/helm-charts/codegen/templates/serviceaccount.yaml
new file mode 100644
index 00000000..57cbc93c
--- /dev/null
+++ b/helm-charts/codegen/templates/serviceaccount.yaml
@@ -0,0 +1,16 @@
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "codegen.serviceAccountName" . }}
+  labels:
+    {{- include "codegen.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}
diff --git a/helm-charts/codegen/values.yaml b/helm-charts/codegen/values.yaml
index cbe72f15..c97e8911 100644
--- a/helm-charts/codegen/values.yaml
+++ b/helm-charts/codegen/values.yaml
@@ -14,14 +14,25 @@ image:
   # Overrides the image tag whose default is the chart appVersion.
   tag: "latest"
 
-port: 7778
-service:
-  type: ClusterIP
-  port: 7778
+imagePullSecrets: []
+nameOverride: ""
+fullnameOverride: ""
 
-nginx:
-  service:
-    type: NodePort
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: true
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
+podAnnotations: {}
+
+podSecurityContext: {}
+  # fsGroup: 2000
 
 securityContext:
   readOnlyRootFilesystem: true
@@ -34,6 +45,15 @@ securityContext:
   seccompProfile:
     type: RuntimeDefault
 
+port: 7778
+service:
+  type: ClusterIP
+  port: 7778
+
+nginx:
+  service:
+    type: NodePort
+
 nodeSelector: {}
 
 tolerations: []
@@ -56,6 +76,10 @@ global:
   https_proxy: ""
   no_proxy: ""
   HUGGINGFACEHUB_API_TOKEN: "insert-your-huggingface-token-here"
+  # service account name to be shared with all parent/child charts.
+  # If set, it will overwrite serviceAccount.name.
+  # If set, and serviceAccount.create is false, it will assume this service account is already created by others.
+  sharedSAName: "codegen"
   # set modelUseHostPath or modelUsePVC to use model cache.
   modelUseHostPath: ""
   # modelUseHostPath: /mnt/opea-models
diff --git a/helm-charts/codetrans/templates/_helpers.tpl b/helm-charts/codetrans/templates/_helpers.tpl
index 452ed1a9..34555a66 100644
--- a/helm-charts/codetrans/templates/_helpers.tpl
+++ b/helm-charts/codetrans/templates/_helpers.tpl
@@ -54,7 +54,9 @@ app.kubernetes.io/instance: {{ .Release.Name }}
 Create the name of the service account to use
 */}}
 {{- define "codetrans.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
+{{- if .Values.global.sharedSAName }}
+{{- .Values.global.sharedSAName }}
+{{- else if .Values.serviceAccount.create }}
 {{- default (include "codetrans.fullname" .) .Values.serviceAccount.name }}
 {{- else }}
 {{- default "default" .Values.serviceAccount.name }}
diff --git a/helm-charts/codetrans/templates/deployment.yaml b/helm-charts/codetrans/templates/deployment.yaml
index aa5e2a5c..f7dba9a4 100644
--- a/helm-charts/codetrans/templates/deployment.yaml
+++ b/helm-charts/codetrans/templates/deployment.yaml
@@ -28,6 +28,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "codetrans.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/codetrans/templates/serviceaccount.yaml b/helm-charts/codetrans/templates/serviceaccount.yaml
new file mode 100644
index 00000000..9dc1cae4
--- /dev/null
+++ b/helm-charts/codetrans/templates/serviceaccount.yaml
@@ -0,0 +1,16 @@
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "codetrans.serviceAccountName" . }}
+  labels:
+    {{- include "codetrans.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}
diff --git a/helm-charts/codetrans/values.yaml b/helm-charts/codetrans/values.yaml
index 79dec68a..e34421ed 100644
--- a/helm-charts/codetrans/values.yaml
+++ b/helm-charts/codetrans/values.yaml
@@ -15,14 +15,25 @@ image:
   # Overrides the image tag whose default is the chart appVersion.
   tag: "latest"
 
-port: 7777
-service:
-  type: ClusterIP
-  port: 7777
+imagePullSecrets: []
+nameOverride: ""
+fullnameOverride: ""
 
-nginx:
-  service:
-    type: NodePort
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: true
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
+podAnnotations: {}
+
+podSecurityContext: {}
+  # fsGroup: 2000
 
 securityContext:
   readOnlyRootFilesystem: true
@@ -35,6 +46,15 @@ securityContext:
   seccompProfile:
     type: RuntimeDefault
 
+port: 7777
+service:
+  type: ClusterIP
+  port: 7777
+
+nginx:
+  service:
+    type: NodePort
+
 nodeSelector: {}
 
 tolerations: []
@@ -57,6 +77,10 @@ global:
   https_proxy: ""
   no_proxy: ""
   HUGGINGFACEHUB_API_TOKEN: "insert-your-huggingface-token-here"
+  # service account name to be shared with all parent/child charts.
+  # If set, it will overwrite serviceAccount.name.
+  # If set, and serviceAccount.create is false, it will assume this service account is already created by others.
+  sharedSAName: "codetrans"
   # set modelUseHostPath or modelUsePVC to use model cache.
   modelUseHostPath: ""
   # modelUseHostPath: /mnt/opea-models
diff --git a/helm-charts/common/agent/templates/_helpers.tpl b/helm-charts/common/agent/templates/_helpers.tpl
index 1227dfd8..65f87804 100644
--- a/helm-charts/common/agent/templates/_helpers.tpl
+++ b/helm-charts/common/agent/templates/_helpers.tpl
@@ -54,7 +54,9 @@ app.kubernetes.io/instance: {{ .Release.Name }}
 Create the name of the service account to use
 */}}
 {{- define "agent.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
+{{- if .Values.global.sharedSAName }}
+{{- .Values.global.sharedSAName }}
+{{- else if .Values.serviceAccount.create }}
 {{- default (include "agent.fullname" .) .Values.serviceAccount.name }}
 {{- else }}
 {{- default "default" .Values.serviceAccount.name }}
diff --git a/helm-charts/common/agent/templates/deployment.yaml b/helm-charts/common/agent/templates/deployment.yaml
index 12c0e00a..dffe5cec 100644
--- a/helm-charts/common/agent/templates/deployment.yaml
+++ b/helm-charts/common/agent/templates/deployment.yaml
@@ -25,6 +25,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "agent.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/common/agent/templates/serviceaccount.yaml b/helm-charts/common/agent/templates/serviceaccount.yaml
new file mode 100644
index 00000000..62b7ffca
--- /dev/null
+++ b/helm-charts/common/agent/templates/serviceaccount.yaml
@@ -0,0 +1,16 @@
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "agent.serviceAccountName" . }}
+  labels:
+    {{- include "agent.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}
diff --git a/helm-charts/common/agent/values.yaml b/helm-charts/common/agent/values.yaml
index 9d7b236d..4e602d96 100644
--- a/helm-charts/common/agent/values.yaml
+++ b/helm-charts/common/agent/values.yaml
@@ -40,6 +40,17 @@ imagePullSecrets: []
 nameOverride: ""
 fullnameOverride: ""
 
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: false
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
 podAnnotations: {}
 
 podSecurityContext: {}
@@ -105,6 +116,10 @@ global:
   https_proxy: ""
   no_proxy: ""
   HUGGINGFACEHUB_API_TOKEN: "insert-your-huggingface-token-here"
+  # service account name to be shared with all parent/child charts.
+  # If set, it will overwrite serviceAccount.name.
+  # If set, and serviceAccount.create is false, it will assume this service account is already created by others.
+  sharedSAName: ""
 
   # Install Prometheus serviceMonitor for service
   monitoring: false
diff --git a/helm-charts/common/asr/templates/_helpers.tpl b/helm-charts/common/asr/templates/_helpers.tpl
index 62d5a055..613ba34b 100644
--- a/helm-charts/common/asr/templates/_helpers.tpl
+++ b/helm-charts/common/asr/templates/_helpers.tpl
@@ -54,7 +54,9 @@ app.kubernetes.io/instance: {{ .Release.Name }}
 Create the name of the service account to use
 */}}
 {{- define "asr.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
+{{- if .Values.global.sharedSAName }}
+{{- .Values.global.sharedSAName }}
+{{- else if .Values.serviceAccount.create }}
 {{- default (include "asr.fullname" .) .Values.serviceAccount.name }}
 {{- else }}
 {{- default "default" .Values.serviceAccount.name }}
diff --git a/helm-charts/common/asr/templates/deployment.yaml b/helm-charts/common/asr/templates/deployment.yaml
index 309ff56c..0f7f6edf 100644
--- a/helm-charts/common/asr/templates/deployment.yaml
+++ b/helm-charts/common/asr/templates/deployment.yaml
@@ -25,6 +25,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "asr.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/common/asr/templates/serviceaccount.yaml b/helm-charts/common/asr/templates/serviceaccount.yaml
new file mode 100644
index 00000000..7139f3e2
--- /dev/null
+++ b/helm-charts/common/asr/templates/serviceaccount.yaml
@@ -0,0 +1,16 @@
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "asr.serviceAccountName" . }}
+  labels:
+    {{- include "asr.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}
diff --git a/helm-charts/common/asr/values.yaml b/helm-charts/common/asr/values.yaml
index 92728e64..b975a3c1 100644
--- a/helm-charts/common/asr/values.yaml
+++ b/helm-charts/common/asr/values.yaml
@@ -27,6 +27,17 @@ imagePullSecrets: []
 nameOverride: ""
 fullnameOverride: ""
 
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: false
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
 podAnnotations: {}
 
 podSecurityContext: {}
@@ -91,3 +102,7 @@ global:
   http_proxy: ""
   https_proxy: ""
   no_proxy: ""
+  # service account name to be shared with all parent/child charts.
+  # If set, it will overwrite serviceAccount.name.
+  # If set, and serviceAccount.create is false, it will assume this service account is already created by others.
+  sharedSAName: ""
diff --git a/helm-charts/common/chathistory-usvc/templates/_helpers.tpl b/helm-charts/common/chathistory-usvc/templates/_helpers.tpl
index 6442c29e..4fee343b 100644
--- a/helm-charts/common/chathistory-usvc/templates/_helpers.tpl
+++ b/helm-charts/common/chathistory-usvc/templates/_helpers.tpl
@@ -54,7 +54,9 @@ app.kubernetes.io/instance: {{ .Release.Name }}
 Create the name of the service account to use
 */}}
 {{- define "chathistory-usvc.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
+{{- if .Values.global.sharedSAName }}
+{{- .Values.global.sharedSAName }}
+{{- else if .Values.serviceAccount.create }}
 {{- default (include "chathistory-usvc.fullname" .) .Values.serviceAccount.name }}
 {{- else }}
 {{- default "default" .Values.serviceAccount.name }}
diff --git a/helm-charts/common/chathistory-usvc/templates/deployment.yaml b/helm-charts/common/chathistory-usvc/templates/deployment.yaml
index b721318e..73ea450e 100644
--- a/helm-charts/common/chathistory-usvc/templates/deployment.yaml
+++ b/helm-charts/common/chathistory-usvc/templates/deployment.yaml
@@ -25,6 +25,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "chathistory-usvc.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/common/chathistory-usvc/templates/serviceaccount.yaml b/helm-charts/common/chathistory-usvc/templates/serviceaccount.yaml
new file mode 100644
index 00000000..576093f5
--- /dev/null
+++ b/helm-charts/common/chathistory-usvc/templates/serviceaccount.yaml
@@ -0,0 +1,16 @@
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "chathistory-usvc.serviceAccountName" . }}
+  labels:
+    {{- include "chathistory-usvc.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}
diff --git a/helm-charts/common/chathistory-usvc/values.yaml b/helm-charts/common/chathistory-usvc/values.yaml
index d5f2faa9..17cf7b22 100644
--- a/helm-charts/common/chathistory-usvc/values.yaml
+++ b/helm-charts/common/chathistory-usvc/values.yaml
@@ -21,6 +21,17 @@ imagePullSecrets: []
 nameOverride: ""
 fullnameOverride: ""
 
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: false
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
 podAnnotations: {}
 
 podSecurityContext: {}
@@ -94,3 +105,7 @@ global:
   http_proxy: ""
   https_proxy: ""
   no_proxy: ""
+  # service account name to be shared with all parent/child charts.
+  # If set, it will overwrite serviceAccount.name.
+  # If set, and serviceAccount.create is false, it will assume this service account is already created by others.
+  sharedSAName: ""
diff --git a/helm-charts/common/data-prep/templates/_helpers.tpl b/helm-charts/common/data-prep/templates/_helpers.tpl
index 8d206239..5ccc04bd 100644
--- a/helm-charts/common/data-prep/templates/_helpers.tpl
+++ b/helm-charts/common/data-prep/templates/_helpers.tpl
@@ -54,7 +54,9 @@ app.kubernetes.io/instance: {{ .Release.Name }}
 Create the name of the service account to use
 */}}
 {{- define "data-prep.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
+{{- if .Values.global.sharedSAName }}
+{{- .Values.global.sharedSAName }}
+{{- else if .Values.serviceAccount.create }}
 {{- default (include "data-prep.fullname" .) .Values.serviceAccount.name }}
 {{- else }}
 {{- default "default" .Values.serviceAccount.name }}
diff --git a/helm-charts/common/data-prep/templates/deployment.yaml b/helm-charts/common/data-prep/templates/deployment.yaml
index 30faff17..fef10401 100644
--- a/helm-charts/common/data-prep/templates/deployment.yaml
+++ b/helm-charts/common/data-prep/templates/deployment.yaml
@@ -25,6 +25,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "data-prep.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/common/data-prep/templates/serviceaccount.yaml b/helm-charts/common/data-prep/templates/serviceaccount.yaml
new file mode 100644
index 00000000..55b87780
--- /dev/null
+++ b/helm-charts/common/data-prep/templates/serviceaccount.yaml
@@ -0,0 +1,16 @@
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "data-prep.serviceAccountName" . }}
+  labels:
+    {{- include "data-prep.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}
diff --git a/helm-charts/common/data-prep/values.yaml b/helm-charts/common/data-prep/values.yaml
index e35274fc..a8f1327c 100644
--- a/helm-charts/common/data-prep/values.yaml
+++ b/helm-charts/common/data-prep/values.yaml
@@ -25,6 +25,17 @@ imagePullSecrets: []
 nameOverride: ""
 fullnameOverride: ""
 
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: false
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
 podAnnotations: {}
 
 podSecurityContext: {}
@@ -113,3 +124,7 @@ global:
   https_proxy: ""
   no_proxy: ""
   HUGGINGFACEHUB_API_TOKEN: "insert-your-huggingface-token-here"
+  # service account name to be shared with all parent/child charts.
+  # If set, it will overwrite serviceAccount.name.
+  # If set, and serviceAccount.create is false, it will assume this service account is already created by others.
+  sharedSAName: ""
diff --git a/helm-charts/common/embedding-usvc/templates/_helpers.tpl b/helm-charts/common/embedding-usvc/templates/_helpers.tpl
index 229f1a5b..5195c4cd 100644
--- a/helm-charts/common/embedding-usvc/templates/_helpers.tpl
+++ b/helm-charts/common/embedding-usvc/templates/_helpers.tpl
@@ -53,9 +53,11 @@ app.kubernetes.io/instance: {{ .Release.Name }}
 {{/*
 Create the name of the service account to use
 */}}
-{{- define "llm-uservice.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
-{{- default (include "llm-uservice.fullname" .) .Values.serviceAccount.name }}
+{{- define "embedding-usvc.serviceAccountName" -}}
+{{- if .Values.global.sharedSAName }}
+{{- .Values.global.sharedSAName }}
+{{- else if .Values.serviceAccount.create }}
+{{- default (include "embedding-usvc.fullname" .) .Values.serviceAccount.name }}
 {{- else }}
 {{- default "default" .Values.serviceAccount.name }}
 {{- end }}
diff --git a/helm-charts/common/embedding-usvc/templates/deployment.yaml b/helm-charts/common/embedding-usvc/templates/deployment.yaml
index 67b2fae9..45938951 100644
--- a/helm-charts/common/embedding-usvc/templates/deployment.yaml
+++ b/helm-charts/common/embedding-usvc/templates/deployment.yaml
@@ -25,6 +25,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "embedding-usvc.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/common/embedding-usvc/templates/serviceaccount.yaml b/helm-charts/common/embedding-usvc/templates/serviceaccount.yaml
new file mode 100644
index 00000000..0cd59bab
--- /dev/null
+++ b/helm-charts/common/embedding-usvc/templates/serviceaccount.yaml
@@ -0,0 +1,16 @@
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "embedding-usvc.serviceAccountName" . }}
+  labels:
+    {{- include "embedding-usvc.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}
diff --git a/helm-charts/common/embedding-usvc/values.yaml b/helm-charts/common/embedding-usvc/values.yaml
index 66f79d78..a4a36f8a 100644
--- a/helm-charts/common/embedding-usvc/values.yaml
+++ b/helm-charts/common/embedding-usvc/values.yaml
@@ -26,6 +26,17 @@ imagePullSecrets: []
 nameOverride: ""
 fullnameOverride: ""
 
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: false
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
 podAnnotations: {}
 
 podSecurityContext: {}
@@ -90,6 +101,10 @@ global:
   http_proxy: ""
   https_proxy: ""
   no_proxy: ""
+  # service account name to be shared with all parent/child charts.
+  # If set, it will overwrite serviceAccount.name.
+  # If set, and serviceAccount.create is false, it will assume this service account is already created by others.
+  sharedSAName: ""
 
   # Install Prometheus serviceMonitor for service
   monitoring: false
diff --git a/helm-charts/common/gpt-sovits/templates/_helpers.tpl b/helm-charts/common/gpt-sovits/templates/_helpers.tpl
index f42c32ca..225fbc2e 100644
--- a/helm-charts/common/gpt-sovits/templates/_helpers.tpl
+++ b/helm-charts/common/gpt-sovits/templates/_helpers.tpl
@@ -54,7 +54,9 @@ app.kubernetes.io/instance: {{ .Release.Name }}
 Create the name of the service account to use
 */}}
 {{- define "gpt-sovits.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
+{{- if .Values.global.sharedSAName }}
+{{- .Values.global.sharedSAName }}
+{{- else if .Values.serviceAccount.create }}
 {{- default (include "gpt-sovits.fullname" .) .Values.serviceAccount.name }}
 {{- else }}
 {{- default "default" .Values.serviceAccount.name }}
diff --git a/helm-charts/common/gpt-sovits/templates/deployment.yaml b/helm-charts/common/gpt-sovits/templates/deployment.yaml
index d5d6e9d9..36da72b4 100644
--- a/helm-charts/common/gpt-sovits/templates/deployment.yaml
+++ b/helm-charts/common/gpt-sovits/templates/deployment.yaml
@@ -25,6 +25,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "gpt-sovits.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/common/gpt-sovits/templates/serviceaccount.yaml b/helm-charts/common/gpt-sovits/templates/serviceaccount.yaml
new file mode 100644
index 00000000..092ce54c
--- /dev/null
+++ b/helm-charts/common/gpt-sovits/templates/serviceaccount.yaml
@@ -0,0 +1,16 @@
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "gpt-sovits.serviceAccountName" . }}
+  labels:
+    {{- include "gpt-sovits.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}
diff --git a/helm-charts/common/gpt-sovits/values.yaml b/helm-charts/common/gpt-sovits/values.yaml
index d5cff30d..52fbf83c 100644
--- a/helm-charts/common/gpt-sovits/values.yaml
+++ b/helm-charts/common/gpt-sovits/values.yaml
@@ -18,6 +18,17 @@ imagePullSecrets: []
 nameOverride: ""
 fullnameOverride: ""
 
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: false
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
 podAnnotations: {}
 
 podSecurityContext: {}
@@ -81,3 +92,7 @@ global:
   http_proxy: ""
   https_proxy: ""
   no_proxy: ""
+  # service account name to be shared with all parent/child charts.
+  # If set, it will overwrite serviceAccount.name.
+  # If set, and serviceAccount.create is false, it will assume this service account is already created by others.
+  sharedSAName: ""
diff --git a/helm-charts/common/guardrails-usvc/templates/_helpers.tpl b/helm-charts/common/guardrails-usvc/templates/_helpers.tpl
index 088f8845..b08af6c4 100644
--- a/helm-charts/common/guardrails-usvc/templates/_helpers.tpl
+++ b/helm-charts/common/guardrails-usvc/templates/_helpers.tpl
@@ -54,7 +54,9 @@ app.kubernetes.io/instance: {{ .Release.Name }}
 Create the name of the service account to use
 */}}
 {{- define "guardrails-usvc.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
+{{- if .Values.global.sharedSAName }}
+{{- .Values.global.sharedSAName }}
+{{- else if .Values.serviceAccount.create }}
 {{- default (include "guardrails-usvc.fullname" .) .Values.serviceAccount.name }}
 {{- else }}
 {{- default "default" .Values.serviceAccount.name }}
diff --git a/helm-charts/common/guardrails-usvc/templates/deployment.yaml b/helm-charts/common/guardrails-usvc/templates/deployment.yaml
index bebf86e5..a551d521 100644
--- a/helm-charts/common/guardrails-usvc/templates/deployment.yaml
+++ b/helm-charts/common/guardrails-usvc/templates/deployment.yaml
@@ -25,6 +25,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "guardrails-usvc.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/common/guardrails-usvc/templates/serviceaccount.yaml b/helm-charts/common/guardrails-usvc/templates/serviceaccount.yaml
new file mode 100644
index 00000000..33bba325
--- /dev/null
+++ b/helm-charts/common/guardrails-usvc/templates/serviceaccount.yaml
@@ -0,0 +1,16 @@
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "guardrails-usvc.serviceAccountName" . }}
+  labels:
+    {{- include "guardrails-usvc.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}
diff --git a/helm-charts/common/guardrails-usvc/values.yaml b/helm-charts/common/guardrails-usvc/values.yaml
index 56a0cc6d..eb75b7e2 100644
--- a/helm-charts/common/guardrails-usvc/values.yaml
+++ b/helm-charts/common/guardrails-usvc/values.yaml
@@ -30,6 +30,17 @@ imagePullSecrets: []
 nameOverride: ""
 fullnameOverride: ""
 
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: false
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
 podAnnotations: {}
 
 podSecurityContext: {}
@@ -94,3 +105,7 @@ global:
   https_proxy: ""
   no_proxy: ""
   HUGGINGFACEHUB_API_TOKEN: "insert-your-huggingface-token-here"
+  # service account name to be shared with all parent/child charts.
+  # If set, it will overwrite serviceAccount.name.
+  # If set, and serviceAccount.create is false, it will assume this service account is already created by others.
+  sharedSAName: ""
diff --git a/helm-charts/common/llm-uservice/templates/_helpers.tpl b/helm-charts/common/llm-uservice/templates/_helpers.tpl
index d67db64c..17552964 100644
--- a/helm-charts/common/llm-uservice/templates/_helpers.tpl
+++ b/helm-charts/common/llm-uservice/templates/_helpers.tpl
@@ -54,7 +54,9 @@ app.kubernetes.io/instance: {{ .Release.Name }}
 Create the name of the service account to use
 */}}
 {{- define "llm-uservice.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
+{{- if .Values.global.sharedSAName }}
+{{- .Values.global.sharedSAName }}
+{{- else if .Values.serviceAccount.create }}
 {{- default (include "llm-uservice.fullname" .) .Values.serviceAccount.name }}
 {{- else }}
 {{- default "default" .Values.serviceAccount.name }}
diff --git a/helm-charts/common/llm-uservice/templates/deployment.yaml b/helm-charts/common/llm-uservice/templates/deployment.yaml
index dfa4e602..ae7778c7 100644
--- a/helm-charts/common/llm-uservice/templates/deployment.yaml
+++ b/helm-charts/common/llm-uservice/templates/deployment.yaml
@@ -25,6 +25,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "llm-uservice.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/common/llm-uservice/templates/serviceaccount.yaml b/helm-charts/common/llm-uservice/templates/serviceaccount.yaml
new file mode 100644
index 00000000..dab76a7b
--- /dev/null
+++ b/helm-charts/common/llm-uservice/templates/serviceaccount.yaml
@@ -0,0 +1,16 @@
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "llm-uservice.serviceAccountName" . }}
+  labels:
+    {{- include "llm-uservice.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}
diff --git a/helm-charts/common/llm-uservice/values.yaml b/helm-charts/common/llm-uservice/values.yaml
index 8908bb74..84ae7d32 100644
--- a/helm-charts/common/llm-uservice/values.yaml
+++ b/helm-charts/common/llm-uservice/values.yaml
@@ -32,6 +32,17 @@ imagePullSecrets: []
 nameOverride: ""
 fullnameOverride: ""
 
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: false
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
 podAnnotations: {}
 
 podSecurityContext: {}
@@ -97,6 +108,10 @@ global:
   https_proxy: ""
   no_proxy: ""
   HUGGINGFACEHUB_API_TOKEN: "insert-your-huggingface-token-here"
+  # service account name to be shared with all parent/child charts.
+  # If set, it will overwrite serviceAccount.name.
+  # If set, and serviceAccount.create is false, it will assume this service account is already created by others.
+  sharedSAName: ""
 
   # Install Prometheus serviceMonitor for service
   monitoring: false
diff --git a/helm-charts/common/lvm-uservice/templates/_helpers.tpl b/helm-charts/common/lvm-uservice/templates/_helpers.tpl
index 86c26b0e..abacefb8 100644
--- a/helm-charts/common/lvm-uservice/templates/_helpers.tpl
+++ b/helm-charts/common/lvm-uservice/templates/_helpers.tpl
@@ -54,7 +54,9 @@ app.kubernetes.io/instance: {{ .Release.Name }}
 Create the name of the service account to use
 */}}
 {{- define "lvm-uservice.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
+{{- if .Values.global.sharedSAName }}
+{{- .Values.global.sharedSAName }}
+{{- else if .Values.serviceAccount.create }}
 {{- default (include "lvm-uservice.fullname" .) .Values.serviceAccount.name }}
 {{- else }}
 {{- default "default" .Values.serviceAccount.name }}
diff --git a/helm-charts/common/lvm-uservice/templates/deployment.yaml b/helm-charts/common/lvm-uservice/templates/deployment.yaml
index c276087d..8f6698f4 100644
--- a/helm-charts/common/lvm-uservice/templates/deployment.yaml
+++ b/helm-charts/common/lvm-uservice/templates/deployment.yaml
@@ -25,6 +25,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "lvm-uservice.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/common/lvm-uservice/templates/serviceaccount.yaml b/helm-charts/common/lvm-uservice/templates/serviceaccount.yaml
new file mode 100644
index 00000000..b21176e8
--- /dev/null
+++ b/helm-charts/common/lvm-uservice/templates/serviceaccount.yaml
@@ -0,0 +1,16 @@
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "lvm-uservice.serviceAccountName" . }}
+  labels:
+    {{- include "lvm-uservice.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}
diff --git a/helm-charts/common/lvm-uservice/values.yaml b/helm-charts/common/lvm-uservice/values.yaml
index 75188a7e..176c2087 100644
--- a/helm-charts/common/lvm-uservice/values.yaml
+++ b/helm-charts/common/lvm-uservice/values.yaml
@@ -29,6 +29,17 @@ imagePullSecrets: []
 nameOverride: ""
 fullnameOverride: ""
 
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: false
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
 podAnnotations: {}
 
 podSecurityContext: {}
@@ -94,6 +105,10 @@ global:
   https_proxy: ""
   no_proxy: ""
   HUGGINGFACEHUB_API_TOKEN: "insert-your-huggingface-token-here"
+  # service account name to be shared with all parent/child charts.
+  # If set, it will overwrite serviceAccount.name.
+  # If set, and serviceAccount.create is false, it will assume this service account is already created by others.
+  sharedSAName: ""
 
   # Install Prometheus serviceMonitor for service
   monitoring: false
diff --git a/helm-charts/common/mongodb/templates/_helpers.tpl b/helm-charts/common/mongodb/templates/_helpers.tpl
index 6b1b8c17..b89a52b8 100644
--- a/helm-charts/common/mongodb/templates/_helpers.tpl
+++ b/helm-charts/common/mongodb/templates/_helpers.tpl
@@ -54,7 +54,9 @@ app.kubernetes.io/instance: {{ .Release.Name }}
 Create the name of the service account to use
 */}}
 {{- define "mongodb.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
+{{- if .Values.global.sharedSAName }}
+{{- .Values.global.sharedSAName }}
+{{- else if .Values.serviceAccount.create }}
 {{- default (include "mongodb.fullname" .) .Values.serviceAccount.name }}
 {{- else }}
 {{- default "default" .Values.serviceAccount.name }}
diff --git a/helm-charts/common/mongodb/templates/deployment.yaml b/helm-charts/common/mongodb/templates/deployment.yaml
index 4fca11ff..d1666a39 100644
--- a/helm-charts/common/mongodb/templates/deployment.yaml
+++ b/helm-charts/common/mongodb/templates/deployment.yaml
@@ -25,6 +25,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "mongodb.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/common/mongodb/templates/serviceaccount.yaml b/helm-charts/common/mongodb/templates/serviceaccount.yaml
new file mode 100644
index 00000000..f7841e15
--- /dev/null
+++ b/helm-charts/common/mongodb/templates/serviceaccount.yaml
@@ -0,0 +1,16 @@
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "mongodb.serviceAccountName" . }}
+  labels:
+    {{- include "mongodb.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}
diff --git a/helm-charts/common/mongodb/values.yaml b/helm-charts/common/mongodb/values.yaml
index cb38a714..43e51b7d 100644
--- a/helm-charts/common/mongodb/values.yaml
+++ b/helm-charts/common/mongodb/values.yaml
@@ -17,6 +17,17 @@ imagePullSecrets: []
 nameOverride: ""
 fullnameOverride: ""
 
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: false
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
 podAnnotations: {}
 
 podSecurityContext: {}
@@ -60,3 +71,9 @@ nodeSelector: {}
 tolerations: []
 
 affinity: {}
+
+global:
+  # service account name to be shared with all parent/child charts.
+  # If set, it will overwrite serviceAccount.name.
+  # If set, and serviceAccount.create is false, it will assume this service account is already created by others.
+  sharedSAName: ""
diff --git a/helm-charts/common/prompt-usvc/templates/_helpers.tpl b/helm-charts/common/prompt-usvc/templates/_helpers.tpl
index 14778711..da47665f 100644
--- a/helm-charts/common/prompt-usvc/templates/_helpers.tpl
+++ b/helm-charts/common/prompt-usvc/templates/_helpers.tpl
@@ -54,7 +54,9 @@ app.kubernetes.io/instance: {{ .Release.Name }}
 Create the name of the service account to use
 */}}
 {{- define "prompt-usvc.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
+{{- if .Values.global.sharedSAName }}
+{{- .Values.global.sharedSAName }}
+{{- else if .Values.serviceAccount.create }}
 {{- default (include "prompt-usvc.fullname" .) .Values.serviceAccount.name }}
 {{- else }}
 {{- default "default" .Values.serviceAccount.name }}
diff --git a/helm-charts/common/prompt-usvc/templates/deployment.yaml b/helm-charts/common/prompt-usvc/templates/deployment.yaml
index 83666838..ca900b55 100644
--- a/helm-charts/common/prompt-usvc/templates/deployment.yaml
+++ b/helm-charts/common/prompt-usvc/templates/deployment.yaml
@@ -25,6 +25,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "prompt-usvc.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/common/prompt-usvc/templates/serviceaccount.yaml b/helm-charts/common/prompt-usvc/templates/serviceaccount.yaml
new file mode 100644
index 00000000..4cef0323
--- /dev/null
+++ b/helm-charts/common/prompt-usvc/templates/serviceaccount.yaml
@@ -0,0 +1,16 @@
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "prompt-usvc.serviceAccountName" . }}
+  labels:
+    {{- include "prompt-usvc.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}
diff --git a/helm-charts/common/prompt-usvc/values.yaml b/helm-charts/common/prompt-usvc/values.yaml
index a475e6f5..82562fca 100644
--- a/helm-charts/common/prompt-usvc/values.yaml
+++ b/helm-charts/common/prompt-usvc/values.yaml
@@ -21,6 +21,17 @@ imagePullSecrets: []
 nameOverride: ""
 fullnameOverride: ""
 
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: false
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
 podAnnotations: {}
 
 podSecurityContext: {}
@@ -97,3 +108,7 @@ global:
   http_proxy: ""
   https_proxy: ""
   no_proxy: ""
+  # service account name to be shared with all parent/child charts.
+  # If set, it will overwrite serviceAccount.name.
+  # If set, and serviceAccount.create is false, it will assume this service account is already created by others.
+  sharedSAName: ""
diff --git a/helm-charts/common/redis-vector-db/templates/_helpers.tpl b/helm-charts/common/redis-vector-db/templates/_helpers.tpl
index f8f7a65d..96fffe22 100644
--- a/helm-charts/common/redis-vector-db/templates/_helpers.tpl
+++ b/helm-charts/common/redis-vector-db/templates/_helpers.tpl
@@ -54,7 +54,9 @@ app.kubernetes.io/instance: {{ .Release.Name }}
 Create the name of the service account to use
 */}}
 {{- define "redis-vector-db.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
+{{- if .Values.global.sharedSAName }}
+{{- .Values.global.sharedSAName }}
+{{- else if .Values.serviceAccount.create }}
 {{- default (include "redis-vector-db.fullname" .) .Values.serviceAccount.name }}
 {{- else }}
 {{- default "default" .Values.serviceAccount.name }}
diff --git a/helm-charts/common/redis-vector-db/templates/deployment.yaml b/helm-charts/common/redis-vector-db/templates/deployment.yaml
index d4fc692b..427e9e99 100644
--- a/helm-charts/common/redis-vector-db/templates/deployment.yaml
+++ b/helm-charts/common/redis-vector-db/templates/deployment.yaml
@@ -25,6 +25,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "redis-vector-db.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/common/redis-vector-db/templates/serviceaccount.yaml b/helm-charts/common/redis-vector-db/templates/serviceaccount.yaml
new file mode 100644
index 00000000..4b42a96f
--- /dev/null
+++ b/helm-charts/common/redis-vector-db/templates/serviceaccount.yaml
@@ -0,0 +1,16 @@
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "redis-vector-db.serviceAccountName" . }}
+  labels:
+    {{- include "redis-vector-db.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}
diff --git a/helm-charts/common/redis-vector-db/values.yaml b/helm-charts/common/redis-vector-db/values.yaml
index d07339c3..26a85128 100644
--- a/helm-charts/common/redis-vector-db/values.yaml
+++ b/helm-charts/common/redis-vector-db/values.yaml
@@ -17,6 +17,17 @@ imagePullSecrets: []
 nameOverride: ""
 fullnameOverride: ""
 
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: false
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
 podAnnotations: {}
 
 podSecurityContext: {}
@@ -61,3 +72,9 @@ nodeSelector: {}
 tolerations: []
 
 affinity: {}
+
+global:
+  # service account name to be shared with all parent/child charts.
+  # If set, it will overwrite serviceAccount.name.
+  # If set, and serviceAccount.create is false, it will assume this service account is already created by others.
+  sharedSAName: ""
diff --git a/helm-charts/common/reranking-usvc/templates/_helpers.tpl b/helm-charts/common/reranking-usvc/templates/_helpers.tpl
index 9247fe13..1bc450a8 100644
--- a/helm-charts/common/reranking-usvc/templates/_helpers.tpl
+++ b/helm-charts/common/reranking-usvc/templates/_helpers.tpl
@@ -53,9 +53,11 @@ app.kubernetes.io/instance: {{ .Release.Name }}
 {{/*
 Create the name of the service account to use
 */}}
-{{- define "llm-uservice.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
-{{- default (include "llm-uservice.fullname" .) .Values.serviceAccount.name }}
+{{- define "reranking-usvc.serviceAccountName" -}}
+{{- if .Values.global.sharedSAName }}
+{{- .Values.global.sharedSAName }}
+{{- else if .Values.serviceAccount.create }}
+{{- default (include "reranking-usvc.fullname" .) .Values.serviceAccount.name }}
 {{- else }}
 {{- default "default" .Values.serviceAccount.name }}
 {{- end }}
diff --git a/helm-charts/common/reranking-usvc/templates/deployment.yaml b/helm-charts/common/reranking-usvc/templates/deployment.yaml
index 50abfc5a..192016ec 100644
--- a/helm-charts/common/reranking-usvc/templates/deployment.yaml
+++ b/helm-charts/common/reranking-usvc/templates/deployment.yaml
@@ -25,6 +25,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "reranking-usvc.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/common/reranking-usvc/templates/serviceaccount.yaml b/helm-charts/common/reranking-usvc/templates/serviceaccount.yaml
new file mode 100644
index 00000000..47aa7fdb
--- /dev/null
+++ b/helm-charts/common/reranking-usvc/templates/serviceaccount.yaml
@@ -0,0 +1,16 @@
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "reranking-usvc.serviceAccountName" . }}
+  labels:
+    {{- include "reranking-usvc.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}
diff --git a/helm-charts/common/reranking-usvc/values.yaml b/helm-charts/common/reranking-usvc/values.yaml
index 924815ff..c1b28a8a 100644
--- a/helm-charts/common/reranking-usvc/values.yaml
+++ b/helm-charts/common/reranking-usvc/values.yaml
@@ -26,6 +26,17 @@ imagePullSecrets: []
 nameOverride: ""
 fullnameOverride: ""
 
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: false
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
 podAnnotations: {}
 
 podSecurityContext: {}
@@ -90,6 +101,10 @@ global:
   http_proxy: ""
   https_proxy: ""
   no_proxy: ""
+  # service account name to be shared with all parent/child charts.
+  # If set, it will overwrite serviceAccount.name.
+  # If set, and serviceAccount.create is false, it will assume this service account is already created by others.
+  sharedSAName: ""
 
   # Install Prometheus serviceMonitor for service
   monitoring: false
diff --git a/helm-charts/common/retriever-usvc/templates/_helpers.tpl b/helm-charts/common/retriever-usvc/templates/_helpers.tpl
index 18c74030..a41c15c2 100644
--- a/helm-charts/common/retriever-usvc/templates/_helpers.tpl
+++ b/helm-charts/common/retriever-usvc/templates/_helpers.tpl
@@ -54,7 +54,9 @@ app.kubernetes.io/instance: {{ .Release.Name }}
 Create the name of the service account to use
 */}}
 {{- define "retriever-usvc.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
+{{- if .Values.global.sharedSAName }}
+{{- .Values.global.sharedSAName }}
+{{- else if .Values.serviceAccount.create }}
 {{- default (include "retriever-usvc.fullname" .) .Values.serviceAccount.name }}
 {{- else }}
 {{- default "default" .Values.serviceAccount.name }}
diff --git a/helm-charts/common/retriever-usvc/templates/deployment.yaml b/helm-charts/common/retriever-usvc/templates/deployment.yaml
index b491b5d4..f3914745 100644
--- a/helm-charts/common/retriever-usvc/templates/deployment.yaml
+++ b/helm-charts/common/retriever-usvc/templates/deployment.yaml
@@ -25,6 +25,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "retriever-usvc.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/common/retriever-usvc/templates/serviceaccount.yaml b/helm-charts/common/retriever-usvc/templates/serviceaccount.yaml
new file mode 100644
index 00000000..017a456b
--- /dev/null
+++ b/helm-charts/common/retriever-usvc/templates/serviceaccount.yaml
@@ -0,0 +1,16 @@
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "retriever-usvc.serviceAccountName" . }}
+  labels:
+    {{- include "retriever-usvc.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}
diff --git a/helm-charts/common/retriever-usvc/values.yaml b/helm-charts/common/retriever-usvc/values.yaml
index 568f2c3f..0e2540d6 100644
--- a/helm-charts/common/retriever-usvc/values.yaml
+++ b/helm-charts/common/retriever-usvc/values.yaml
@@ -35,6 +35,17 @@ imagePullSecrets: []
 nameOverride: ""
 fullnameOverride: ""
 
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: false
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
 podAnnotations: {}
 
 podSecurityContext: {}
@@ -108,6 +119,10 @@ global:
   https_proxy: ""
   no_proxy: ""
   HUGGINGFACEHUB_API_TOKEN: "insert-your-huggingface-token-here"
+  # service account name to be shared with all parent/child charts.
+  # If set, it will overwrite serviceAccount.name.
+  # If set, and serviceAccount.create is false, it will assume this service account is already created by others.
+  sharedSAName: ""
 
   # Install Prometheus serviceMonitor for service
   monitoring: false
diff --git a/helm-charts/common/speecht5/templates/_helpers.tpl b/helm-charts/common/speecht5/templates/_helpers.tpl
index 7db4f3fd..8250fdbe 100644
--- a/helm-charts/common/speecht5/templates/_helpers.tpl
+++ b/helm-charts/common/speecht5/templates/_helpers.tpl
@@ -54,7 +54,9 @@ app.kubernetes.io/instance: {{ .Release.Name }}
 Create the name of the service account to use
 */}}
 {{- define "speecht5.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
+{{- if .Values.global.sharedSAName }}
+{{- .Values.global.sharedSAName }}
+{{- else if .Values.serviceAccount.create }}
 {{- default (include "speecht5.fullname" .) .Values.serviceAccount.name }}
 {{- else }}
 {{- default "default" .Values.serviceAccount.name }}
diff --git a/helm-charts/common/speecht5/templates/deployment.yaml b/helm-charts/common/speecht5/templates/deployment.yaml
index 6b5976b8..e0ea6538 100644
--- a/helm-charts/common/speecht5/templates/deployment.yaml
+++ b/helm-charts/common/speecht5/templates/deployment.yaml
@@ -25,6 +25,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "speecht5.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/common/speecht5/templates/serviceaccount.yaml b/helm-charts/common/speecht5/templates/serviceaccount.yaml
new file mode 100644
index 00000000..4a7ccc83
--- /dev/null
+++ b/helm-charts/common/speecht5/templates/serviceaccount.yaml
@@ -0,0 +1,16 @@
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "speecht5.serviceAccountName" . }}
+  labels:
+    {{- include "speecht5.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}
diff --git a/helm-charts/common/speecht5/values.yaml b/helm-charts/common/speecht5/values.yaml
index 96a8e452..4b8fd6eb 100644
--- a/helm-charts/common/speecht5/values.yaml
+++ b/helm-charts/common/speecht5/values.yaml
@@ -21,6 +21,17 @@ imagePullSecrets: []
 nameOverride: ""
 fullnameOverride: ""
 
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: false
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
 podAnnotations: {}
 
 podSecurityContext: {}
@@ -85,6 +96,10 @@ global:
   http_proxy: ""
   https_proxy: ""
   no_proxy: ""
+  # service account name to be shared with all parent/child charts.
+  # If set, it will overwrite serviceAccount.name.
+  # If set, and serviceAccount.create is false, it will assume this service account is already created by others.
+  sharedSAName: ""
 
   # Choose where to save your downloaded models
   # Set modelUseHostPath for local directory, this is good for one node test. Example:
diff --git a/helm-charts/common/tei/templates/_helpers.tpl b/helm-charts/common/tei/templates/_helpers.tpl
index fc4a5743..b2ae9815 100644
--- a/helm-charts/common/tei/templates/_helpers.tpl
+++ b/helm-charts/common/tei/templates/_helpers.tpl
@@ -61,7 +61,9 @@ app.kubernetes.io/instance: {{ .Release.Name }}
 Create the name of the service account to use
 */}}
 {{- define "tei.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
+{{- if .Values.global.sharedSAName }}
+{{- .Values.global.sharedSAName }}
+{{- else if .Values.serviceAccount.create }}
 {{- default (include "tei.fullname" .) .Values.serviceAccount.name }}
 {{- else }}
 {{- default "default" .Values.serviceAccount.name }}
diff --git a/helm-charts/common/tei/templates/deployment.yaml b/helm-charts/common/tei/templates/deployment.yaml
index 442847df..0d10c015 100644
--- a/helm-charts/common/tei/templates/deployment.yaml
+++ b/helm-charts/common/tei/templates/deployment.yaml
@@ -28,6 +28,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "tei.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/common/tei/templates/serviceaccount.yaml b/helm-charts/common/tei/templates/serviceaccount.yaml
new file mode 100644
index 00000000..ec6ef377
--- /dev/null
+++ b/helm-charts/common/tei/templates/serviceaccount.yaml
@@ -0,0 +1,16 @@
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "tei.serviceAccountName" . }}
+  labels:
+    {{- include "tei.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}
diff --git a/helm-charts/common/tei/values.yaml b/helm-charts/common/tei/values.yaml
index 44460a35..9d619387 100644
--- a/helm-charts/common/tei/values.yaml
+++ b/helm-charts/common/tei/values.yaml
@@ -35,6 +35,17 @@ imagePullSecrets: []
 nameOverride: ""
 fullnameOverride: ""
 
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: false
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
 podAnnotations: {}
 
 podSecurityContext: {}
@@ -99,6 +110,10 @@ global:
   http_proxy: ""
   https_proxy: ""
   no_proxy: ""
+  # service account name to be shared with all parent/child charts.
+  # If set, it will overwrite serviceAccount.name.
+  # If set, and serviceAccount.create is false, it will assume this service account is already created by others.
+  sharedSAName: ""
 
   # Choose where to save your downloaded models
   # Set modelUseHostPath for local directory, this is good for one node test. Example:
diff --git a/helm-charts/common/teirerank/templates/_helpers.tpl b/helm-charts/common/teirerank/templates/_helpers.tpl
index 0c0b9238..e6dca1a9 100644
--- a/helm-charts/common/teirerank/templates/_helpers.tpl
+++ b/helm-charts/common/teirerank/templates/_helpers.tpl
@@ -61,7 +61,9 @@ app.kubernetes.io/instance: {{ .Release.Name }}
 Create the name of the service account to use
 */}}
 {{- define "teirerank.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
+{{- if .Values.global.sharedSAName }}
+{{- .Values.global.sharedSAName }}
+{{- else if .Values.serviceAccount.create }}
 {{- default (include "teirerank.fullname" .) .Values.serviceAccount.name }}
 {{- else }}
 {{- default "default" .Values.serviceAccount.name }}
diff --git a/helm-charts/common/teirerank/templates/deployment.yaml b/helm-charts/common/teirerank/templates/deployment.yaml
index 2d0ec999..bb843889 100644
--- a/helm-charts/common/teirerank/templates/deployment.yaml
+++ b/helm-charts/common/teirerank/templates/deployment.yaml
@@ -28,6 +28,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "teirerank.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/common/teirerank/templates/serviceaccount.yaml b/helm-charts/common/teirerank/templates/serviceaccount.yaml
new file mode 100644
index 00000000..490f147d
--- /dev/null
+++ b/helm-charts/common/teirerank/templates/serviceaccount.yaml
@@ -0,0 +1,16 @@
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "teirerank.serviceAccountName" . }}
+  labels:
+    {{- include "teirerank.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}
diff --git a/helm-charts/common/teirerank/values.yaml b/helm-charts/common/teirerank/values.yaml
index 4d0dedf2..1b54d5ae 100644
--- a/helm-charts/common/teirerank/values.yaml
+++ b/helm-charts/common/teirerank/values.yaml
@@ -35,6 +35,17 @@ imagePullSecrets: []
 nameOverride: ""
 fullnameOverride: ""
 
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: false
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
 podAnnotations: {}
 
 podSecurityContext: {}
@@ -99,6 +110,10 @@ global:
   http_proxy: ""
   https_proxy: ""
   no_proxy: ""
+  # service account name to be shared with all parent/child charts.
+  # If set, it will overwrite serviceAccount.name.
+  # If set, and serviceAccount.create is false, it will assume this service account is already created by others.
+  sharedSAName: ""
 
   # Choose where to save your downloaded models
   # Set modelUseHostPath for local directory, this is good for one node test. Example:
diff --git a/helm-charts/common/tgi/templates/_helpers.tpl b/helm-charts/common/tgi/templates/_helpers.tpl
index b672e830..746328c2 100644
--- a/helm-charts/common/tgi/templates/_helpers.tpl
+++ b/helm-charts/common/tgi/templates/_helpers.tpl
@@ -61,7 +61,9 @@ app.kubernetes.io/instance: {{ .Release.Name }}
 Create the name of the service account to use
 */}}
 {{- define "tgi.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
+{{- if .Values.global.sharedSAName }}
+{{- .Values.global.sharedSAName }}
+{{- else if .Values.serviceAccount.create }}
 {{- default (include "tgi.fullname" .) .Values.serviceAccount.name }}
 {{- else }}
 {{- default "default" .Values.serviceAccount.name }}
diff --git a/helm-charts/common/tgi/templates/deployment.yaml b/helm-charts/common/tgi/templates/deployment.yaml
index 04436e61..2411a5b6 100644
--- a/helm-charts/common/tgi/templates/deployment.yaml
+++ b/helm-charts/common/tgi/templates/deployment.yaml
@@ -28,6 +28,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "tgi.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/common/tgi/templates/serviceaccount.yaml b/helm-charts/common/tgi/templates/serviceaccount.yaml
new file mode 100644
index 00000000..bf0bf0d7
--- /dev/null
+++ b/helm-charts/common/tgi/templates/serviceaccount.yaml
@@ -0,0 +1,16 @@
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "tgi.serviceAccountName" . }}
+  labels:
+    {{- include "tgi.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}
diff --git a/helm-charts/common/tgi/values.yaml b/helm-charts/common/tgi/values.yaml
index d58db193..827138d0 100644
--- a/helm-charts/common/tgi/values.yaml
+++ b/helm-charts/common/tgi/values.yaml
@@ -36,6 +36,17 @@ imagePullSecrets: []
 nameOverride: ""
 fullnameOverride: ""
 
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: false
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
 podAnnotations: {}
 
 podSecurityContext: {}
@@ -129,6 +140,10 @@ global:
   https_proxy: ""
   no_proxy: ""
   HUGGINGFACEHUB_API_TOKEN: "insert-your-huggingface-token-here"
+  # service account name to be shared with all parent/child charts.
+  # If set, it will overwrite serviceAccount.name.
+  # If set, and serviceAccount.create is false, it will assume this service account is already created by others.
+  sharedSAName: ""
 
   # Choose where to save your downloaded models
   # Set modelUseHostPath for local directory, this is good for one node test. Example:
diff --git a/helm-charts/common/tts/templates/_helpers.tpl b/helm-charts/common/tts/templates/_helpers.tpl
index 22b5e576..4ae1516b 100644
--- a/helm-charts/common/tts/templates/_helpers.tpl
+++ b/helm-charts/common/tts/templates/_helpers.tpl
@@ -54,7 +54,9 @@ app.kubernetes.io/instance: {{ .Release.Name }}
 Create the name of the service account to use
 */}}
 {{- define "tts.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
+{{- if .Values.global.sharedSAName }}
+{{- .Values.global.sharedSAName }}
+{{- else if .Values.serviceAccount.create }}
 {{- default (include "tts.fullname" .) .Values.serviceAccount.name }}
 {{- else }}
 {{- default "default" .Values.serviceAccount.name }}
diff --git a/helm-charts/common/tts/templates/deployment.yaml b/helm-charts/common/tts/templates/deployment.yaml
index 26da197a..b0063195 100644
--- a/helm-charts/common/tts/templates/deployment.yaml
+++ b/helm-charts/common/tts/templates/deployment.yaml
@@ -25,6 +25,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "tts.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/common/tts/templates/serviceaccount.yaml b/helm-charts/common/tts/templates/serviceaccount.yaml
new file mode 100644
index 00000000..b9b47132
--- /dev/null
+++ b/helm-charts/common/tts/templates/serviceaccount.yaml
@@ -0,0 +1,16 @@
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "tts.serviceAccountName" . }}
+  labels:
+    {{- include "tts.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}
diff --git a/helm-charts/common/tts/values.yaml b/helm-charts/common/tts/values.yaml
index 39214480..ca465dfc 100644
--- a/helm-charts/common/tts/values.yaml
+++ b/helm-charts/common/tts/values.yaml
@@ -27,6 +27,17 @@ imagePullSecrets: []
 nameOverride: ""
 fullnameOverride: ""
 
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: false
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
 podAnnotations: {}
 
 podSecurityContext: {}
@@ -91,3 +102,7 @@ global:
   http_proxy: ""
   https_proxy: ""
   no_proxy: ""
+  # service account name to be shared with all parent/child charts.
+  # If set, it will overwrite serviceAccount.name.
+  # If set, and serviceAccount.create is false, it will assume this service account is already created by others.
+  sharedSAName: ""
diff --git a/helm-charts/common/ui/templates/_helpers.tpl b/helm-charts/common/ui/templates/_helpers.tpl
index 07e40484..9ba7cbc6 100644
--- a/helm-charts/common/ui/templates/_helpers.tpl
+++ b/helm-charts/common/ui/templates/_helpers.tpl
@@ -54,7 +54,9 @@ app.kubernetes.io/instance: {{ .Release.Name }}
 Create the name of the service account to use
 */}}
 {{- define "ui.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
+{{- if .Values.global.sharedSAName }}
+{{- .Values.global.sharedSAName }}
+{{- else if .Values.serviceAccount.create }}
 {{- default (include "ui.fullname" .) .Values.serviceAccount.name }}
 {{- else }}
 {{- default "default" .Values.serviceAccount.name }}
diff --git a/helm-charts/common/ui/templates/deployment.yaml b/helm-charts/common/ui/templates/deployment.yaml
index 5bf8231b..44a3299f 100644
--- a/helm-charts/common/ui/templates/deployment.yaml
+++ b/helm-charts/common/ui/templates/deployment.yaml
@@ -25,6 +25,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "ui.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/common/ui/templates/serviceaccount.yaml b/helm-charts/common/ui/templates/serviceaccount.yaml
new file mode 100644
index 00000000..bcd96626
--- /dev/null
+++ b/helm-charts/common/ui/templates/serviceaccount.yaml
@@ -0,0 +1,16 @@
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "ui.serviceAccountName" . }}
+  labels:
+    {{- include "ui.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}
diff --git a/helm-charts/common/ui/values.yaml b/helm-charts/common/ui/values.yaml
index 4e0beddf..793f1945 100644
--- a/helm-charts/common/ui/values.yaml
+++ b/helm-charts/common/ui/values.yaml
@@ -18,6 +18,17 @@ imagePullSecrets: []
 nameOverride: ""
 fullnameOverride: ""
 
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: false
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
 podAnnotations: {}
 
 podSecurityContext: {}
@@ -96,4 +107,8 @@ DATAPREP_GET_FILE_ENDPOINT: "/v1/dataprep/get_file"
 # data preparation delete file service URL, default to Mega data preparation service
 DATAPREP_DELETE_FILE_ENDPOINT: "/v1/dataprep/delete_file"
 
-global: {}
+global:
+  # service account name to be shared with all parent/child charts.
+  # If set, it will overwrite serviceAccount.name.
+  # If set, and serviceAccount.create is false, it will assume this service account is already created by others.
+  sharedSAName: ""
diff --git a/helm-charts/common/vllm/templates/_helpers.tpl b/helm-charts/common/vllm/templates/_helpers.tpl
index 41b1f8d6..63ec9e61 100644
--- a/helm-charts/common/vllm/templates/_helpers.tpl
+++ b/helm-charts/common/vllm/templates/_helpers.tpl
@@ -54,7 +54,9 @@ app.kubernetes.io/instance: {{ .Release.Name }}
 Create the name of the service account to use
 */}}
 {{- define "vllm.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
+{{- if .Values.global.sharedSAName }}
+{{- .Values.global.sharedSAName }}
+{{- else if .Values.serviceAccount.create }}
 {{- default (include "vllm.fullname" .) .Values.serviceAccount.name }}
 {{- else }}
 {{- default "default" .Values.serviceAccount.name }}
diff --git a/helm-charts/common/vllm/templates/deployment.yaml b/helm-charts/common/vllm/templates/deployment.yaml
index 66b5e372..63aba08f 100644
--- a/helm-charts/common/vllm/templates/deployment.yaml
+++ b/helm-charts/common/vllm/templates/deployment.yaml
@@ -25,6 +25,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "vllm.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/common/vllm/templates/serviceaccount.yaml b/helm-charts/common/vllm/templates/serviceaccount.yaml
new file mode 100644
index 00000000..b5f23159
--- /dev/null
+++ b/helm-charts/common/vllm/templates/serviceaccount.yaml
@@ -0,0 +1,16 @@
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "vllm.serviceAccountName" . }}
+  labels:
+    {{- include "vllm.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}
diff --git a/helm-charts/common/vllm/values.yaml b/helm-charts/common/vllm/values.yaml
index fb599ccd..c8958e3e 100644
--- a/helm-charts/common/vllm/values.yaml
+++ b/helm-charts/common/vllm/values.yaml
@@ -20,6 +20,17 @@ imagePullSecrets: []
 nameOverride: ""
 fullnameOverride: ""
 
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: false
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
 podAnnotations: {}
 
 podSecurityContext: {}
@@ -88,6 +99,10 @@ global:
   https_proxy: ""
   no_proxy: ""
   HUGGINGFACEHUB_API_TOKEN: "insert-your-huggingface-token-here"
+  # service account name to be shared with all parent/child charts.
+  # If set, it will overwrite serviceAccount.name.
+  # If set, and serviceAccount.create is false, it will assume this service account is already created by others.
+  sharedSAName: ""
 
   # Choose where to save your downloaded models
   # Set modelUseHostPath for local directory, this is good for one node test. Example:
diff --git a/helm-charts/common/web-retriever/templates/_helpers.tpl b/helm-charts/common/web-retriever/templates/_helpers.tpl
index 1bdb3e1b..de5b570c 100644
--- a/helm-charts/common/web-retriever/templates/_helpers.tpl
+++ b/helm-charts/common/web-retriever/templates/_helpers.tpl
@@ -54,7 +54,9 @@ app.kubernetes.io/instance: {{ .Release.Name }}
 Create the name of the service account to use
 */}}
 {{- define "web-retriever.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
+{{- if .Values.global.sharedSAName }}
+{{- .Values.global.sharedSAName }}
+{{- else if .Values.serviceAccount.create }}
 {{- default (include "web-retriever.fullname" .) .Values.serviceAccount.name }}
 {{- else }}
 {{- default "default" .Values.serviceAccount.name }}
diff --git a/helm-charts/common/web-retriever/templates/deployment.yaml b/helm-charts/common/web-retriever/templates/deployment.yaml
index 307206d3..25b01790 100644
--- a/helm-charts/common/web-retriever/templates/deployment.yaml
+++ b/helm-charts/common/web-retriever/templates/deployment.yaml
@@ -25,6 +25,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "web-retriever.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/common/web-retriever/templates/serviceaccount.yaml b/helm-charts/common/web-retriever/templates/serviceaccount.yaml
new file mode 100644
index 00000000..1e8065bb
--- /dev/null
+++ b/helm-charts/common/web-retriever/templates/serviceaccount.yaml
@@ -0,0 +1,16 @@
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "web-retriever.serviceAccountName" . }}
+  labels:
+    {{- include "web-retriever.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}
diff --git a/helm-charts/common/web-retriever/values.yaml b/helm-charts/common/web-retriever/values.yaml
index e3d25447..12aba290 100644
--- a/helm-charts/common/web-retriever/values.yaml
+++ b/helm-charts/common/web-retriever/values.yaml
@@ -29,6 +29,17 @@ imagePullSecrets: []
 nameOverride: ""
 fullnameOverride: ""
 
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: false
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
 podAnnotations: {}
 
 podSecurityContext: {}
@@ -93,3 +104,7 @@ global:
   http_proxy: ""
   https_proxy: ""
   no_proxy: ""
+  # service account name to be shared with all parent/child charts.
+  # If set, it will overwrite serviceAccount.name.
+  # If set, and serviceAccount.create is false, it will assume this service account is already created by others.
+  sharedSAName: ""
diff --git a/helm-charts/common/whisper/templates/_helpers.tpl b/helm-charts/common/whisper/templates/_helpers.tpl
index 264e205a..8c98682c 100644
--- a/helm-charts/common/whisper/templates/_helpers.tpl
+++ b/helm-charts/common/whisper/templates/_helpers.tpl
@@ -54,7 +54,9 @@ app.kubernetes.io/instance: {{ .Release.Name }}
 Create the name of the service account to use
 */}}
 {{- define "whisper.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
+{{- if .Values.global.sharedSAName }}
+{{- .Values.global.sharedSAName }}
+{{- else if .Values.serviceAccount.create }}
 {{- default (include "whisper.fullname" .) .Values.serviceAccount.name }}
 {{- else }}
 {{- default "default" .Values.serviceAccount.name }}
diff --git a/helm-charts/common/whisper/templates/deployment.yaml b/helm-charts/common/whisper/templates/deployment.yaml
index c5d79899..66b31dd3 100644
--- a/helm-charts/common/whisper/templates/deployment.yaml
+++ b/helm-charts/common/whisper/templates/deployment.yaml
@@ -25,6 +25,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "whisper.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/common/whisper/templates/serviceaccount.yaml b/helm-charts/common/whisper/templates/serviceaccount.yaml
new file mode 100644
index 00000000..427f274b
--- /dev/null
+++ b/helm-charts/common/whisper/templates/serviceaccount.yaml
@@ -0,0 +1,16 @@
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "whisper.serviceAccountName" . }}
+  labels:
+    {{- include "whisper.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}
diff --git a/helm-charts/common/whisper/values.yaml b/helm-charts/common/whisper/values.yaml
index c368fe66..680dc3c5 100644
--- a/helm-charts/common/whisper/values.yaml
+++ b/helm-charts/common/whisper/values.yaml
@@ -20,6 +20,17 @@ imagePullSecrets: []
 nameOverride: ""
 fullnameOverride: ""
 
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: false
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
 podAnnotations: {}
 
 podSecurityContext: {}
@@ -84,6 +95,10 @@ global:
   http_proxy: ""
   https_proxy: ""
   no_proxy: ""
+  # service account name to be shared with all parent/child charts.
+  # If set, it will overwrite serviceAccount.name.
+  # If set, and serviceAccount.create is false, it will assume this service account is already created by others.
+  sharedSAName: ""
 
   # Choose where to save your downloaded models
   # Set modelUseHostPath for local directory, this is good for one node test. Example:
diff --git a/helm-charts/docsum/templates/_helpers.tpl b/helm-charts/docsum/templates/_helpers.tpl
index 48d7f924..e963d725 100644
--- a/helm-charts/docsum/templates/_helpers.tpl
+++ b/helm-charts/docsum/templates/_helpers.tpl
@@ -54,7 +54,9 @@ app.kubernetes.io/instance: {{ .Release.Name }}
 Create the name of the service account to use
 */}}
 {{- define "docsum.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
+{{- if .Values.global.sharedSAName }}
+{{- .Values.global.sharedSAName }}
+{{- else if .Values.serviceAccount.create }}
 {{- default (include "docsum.fullname" .) .Values.serviceAccount.name }}
 {{- else }}
 {{- default "default" .Values.serviceAccount.name }}
diff --git a/helm-charts/docsum/templates/deployment.yaml b/helm-charts/docsum/templates/deployment.yaml
index f6315d70..cc2a281a 100644
--- a/helm-charts/docsum/templates/deployment.yaml
+++ b/helm-charts/docsum/templates/deployment.yaml
@@ -28,6 +28,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "docsum.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/docsum/templates/m2t.yaml b/helm-charts/docsum/templates/m2t.yaml
index d0e6c775..897dabf8 100644
--- a/helm-charts/docsum/templates/m2t.yaml
+++ b/helm-charts/docsum/templates/m2t.yaml
@@ -28,6 +28,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "docsum.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/docsum/templates/serviceaccount.yaml b/helm-charts/docsum/templates/serviceaccount.yaml
new file mode 100644
index 00000000..5547a38d
--- /dev/null
+++ b/helm-charts/docsum/templates/serviceaccount.yaml
@@ -0,0 +1,16 @@
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "docsum.serviceAccountName" . }}
+  labels:
+    {{- include "docsum.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}
diff --git a/helm-charts/docsum/templates/v2a.yaml b/helm-charts/docsum/templates/v2a.yaml
index c99fd4b3..db192bfd 100644
--- a/helm-charts/docsum/templates/v2a.yaml
+++ b/helm-charts/docsum/templates/v2a.yaml
@@ -28,6 +28,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "docsum.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/docsum/values.yaml b/helm-charts/docsum/values.yaml
index 68e29586..a473a15f 100644
--- a/helm-charts/docsum/values.yaml
+++ b/helm-charts/docsum/values.yaml
@@ -33,14 +33,25 @@ m2t:
     type: ClusterIP
     port: 7079
 
-port: 8888
-service:
-  type: ClusterIP
-  port: 8888
+imagePullSecrets: []
+nameOverride: ""
+fullnameOverride: ""
 
-nginx:
-  service:
-    type: NodePort
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: true
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
+podAnnotations: {}
+
+podSecurityContext: {}
+  # fsGroup: 2000
 
 securityContext:
   readOnlyRootFilesystem: true
@@ -53,6 +64,15 @@ securityContext:
   seccompProfile:
     type: RuntimeDefault
 
+port: 8888
+service:
+  type: ClusterIP
+  port: 8888
+
+nginx:
+  service:
+    type: NodePort
+
 nodeSelector: {}
 
 tolerations: []
@@ -80,6 +100,10 @@ global:
   https_proxy: ""
   no_proxy: ""
   HUGGINGFACEHUB_API_TOKEN: "insert-your-huggingface-token-here"
+  # service account name to be shared with all parent/child charts.
+  # If set, it will overwrite serviceAccount.name.
+  # If set, and serviceAccount.create is false, it will assume this service account is already created by others.
+  sharedSAName: "docsum"
   # set modelUseHostPath or modelUsePVC to use model cache.
   modelUseHostPath: ""
   # modelUseHostPath: /mnt/opea-models
diff --git a/helm-charts/faqgen/templates/_helpers.tpl b/helm-charts/faqgen/templates/_helpers.tpl
index f5913492..9b543631 100644
--- a/helm-charts/faqgen/templates/_helpers.tpl
+++ b/helm-charts/faqgen/templates/_helpers.tpl
@@ -54,7 +54,9 @@ app.kubernetes.io/instance: {{ .Release.Name }}
 Create the name of the service account to use
 */}}
 {{- define "faqgen.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
+{{- if .Values.global.sharedSAName }}
+{{- .Values.global.sharedSAName }}
+{{- else if .Values.serviceAccount.create }}
 {{- default (include "faqgen.fullname" .) .Values.serviceAccount.name }}
 {{- else }}
 {{- default "default" .Values.serviceAccount.name }}
diff --git a/helm-charts/faqgen/templates/deployment.yaml b/helm-charts/faqgen/templates/deployment.yaml
index b759c031..bd9bbcc4 100644
--- a/helm-charts/faqgen/templates/deployment.yaml
+++ b/helm-charts/faqgen/templates/deployment.yaml
@@ -28,6 +28,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "faqgen.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/faqgen/templates/serviceaccount.yaml b/helm-charts/faqgen/templates/serviceaccount.yaml
new file mode 100644
index 00000000..d468072e
--- /dev/null
+++ b/helm-charts/faqgen/templates/serviceaccount.yaml
@@ -0,0 +1,16 @@
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "faqgen.serviceAccountName" . }}
+  labels:
+    {{- include "faqgen.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}
diff --git a/helm-charts/faqgen/values.yaml b/helm-charts/faqgen/values.yaml
index d382d7b0..75da4f67 100644
--- a/helm-charts/faqgen/values.yaml
+++ b/helm-charts/faqgen/values.yaml
@@ -14,14 +14,25 @@ image:
   # Overrides the image tag whose default is the chart appVersion.
   tag: "latest"
 
-port: 8888
-service:
-  type: ClusterIP
-  port: 8888
+imagePullSecrets: []
+nameOverride: ""
+fullnameOverride: ""
 
-nginx:
-  service:
-    type: NodePort
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: true
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
+podAnnotations: {}
+
+podSecurityContext: {}
+  # fsGroup: 2000
 
 securityContext:
   readOnlyRootFilesystem: true
@@ -34,6 +45,15 @@ securityContext:
   seccompProfile:
     type: RuntimeDefault
 
+port: 8888
+service:
+  type: ClusterIP
+  port: 8888
+
+nginx:
+  service:
+    type: NodePort
+
 nodeSelector: {}
 
 tolerations: []
@@ -61,6 +81,10 @@ global:
   https_proxy: ""
   no_proxy: ""
   HUGGINGFACEHUB_API_TOKEN: "insert-your-huggingface-token-here"
+  # service account name to be shared with all parent/child charts.
+  # If set, it will overwrite serviceAccount.name.
+  # If set, and serviceAccount.create is false, it will assume this service account is already created by others.
+  sharedSAName: "faqgen"
   # set modelUseHostPath or modelUsePVC to use model cache.
   modelUseHostPath: ""
   # modelUseHostPath: /mnt/opea-models
diff --git a/helm-charts/visualqna/templates/_helpers.tpl b/helm-charts/visualqna/templates/_helpers.tpl
index 68b296a9..1b412458 100644
--- a/helm-charts/visualqna/templates/_helpers.tpl
+++ b/helm-charts/visualqna/templates/_helpers.tpl
@@ -54,7 +54,9 @@ app.kubernetes.io/instance: {{ .Release.Name }}
 Create the name of the service account to use
 */}}
 {{- define "visualqna.serviceAccountName" -}}
-{{- if .Values.serviceAccount.create }}
+{{- if .Values.global.sharedSAName }}
+{{- .Values.global.sharedSAName }}
+{{- else if .Values.serviceAccount.create }}
 {{- default (include "visualqna.fullname" .) .Values.serviceAccount.name }}
 {{- else }}
 {{- default "default" .Values.serviceAccount.name }}
diff --git a/helm-charts/visualqna/templates/deployment.yaml b/helm-charts/visualqna/templates/deployment.yaml
index 5ef74e99..1964fc6d 100644
--- a/helm-charts/visualqna/templates/deployment.yaml
+++ b/helm-charts/visualqna/templates/deployment.yaml
@@ -28,6 +28,7 @@ spec:
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      serviceAccountName: {{ include "visualqna.serviceAccountName" . }}
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
diff --git a/helm-charts/visualqna/templates/serviceaccount.yaml b/helm-charts/visualqna/templates/serviceaccount.yaml
new file mode 100644
index 00000000..d0c9fe35
--- /dev/null
+++ b/helm-charts/visualqna/templates/serviceaccount.yaml
@@ -0,0 +1,16 @@
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "visualqna.serviceAccountName" . }}
+  labels:
+    {{- include "visualqna.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}
diff --git a/helm-charts/visualqna/values.yaml b/helm-charts/visualqna/values.yaml
index f4a34ffd..68c85e6c 100644
--- a/helm-charts/visualqna/values.yaml
+++ b/helm-charts/visualqna/values.yaml
@@ -14,13 +14,25 @@ image:
   # Overrides the image tag whose default is the chart appVersion.
   tag: "latest"
 
-nginx:
-  service:
-    type: NodePort
-port: 8888
-service:
-  type: ClusterIP
-  port: 8888
+imagePullSecrets: []
+nameOverride: ""
+fullnameOverride: ""
+
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: true
+  # Automatically mount a ServiceAccount's API credentials?
+  automount: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: ""
+
+podAnnotations: {}
+
+podSecurityContext: {}
+  # fsGroup: 2000
 
 securityContext:
   readOnlyRootFilesystem: true
@@ -33,6 +45,14 @@ securityContext:
   seccompProfile:
     type: RuntimeDefault
 
+nginx:
+  service:
+    type: NodePort
+port: 8888
+service:
+  type: ClusterIP
+  port: 8888
+
 nodeSelector: {}
 
 tolerations: []
@@ -62,6 +82,10 @@ global:
   https_proxy: ""
   no_proxy: ""
   HUGGINGFACEHUB_API_TOKEN: "insert-your-huggingface-token-here"
+  # service account name to be shared with all parent/child charts.
+  # If set, it will overwrite serviceAccount.name.
+  # If set, and serviceAccount.create is false, it will assume this service account is already created by others.
+  sharedSAName: "visualqna"
   # set modelUseHostPath or modelUsePVC to use model cache.
   modelUseHostPath: ""
   # modelUseHostPath: /mnt/opea-models