diff --git a/charts/prometheus-blackbox-exporter/Chart.yaml b/charts/prometheus-blackbox-exporter/Chart.yaml
index 1192dc1bd2dd..34c04db01e27 100644
--- a/charts/prometheus-blackbox-exporter/Chart.yaml
+++ b/charts/prometheus-blackbox-exporter/Chart.yaml
@@ -1,7 +1,7 @@
 apiVersion: v2
 description: Prometheus Blackbox Exporter
 name: prometheus-blackbox-exporter
-version: 8.6.1
+version: 8.7.0
 appVersion: v0.24.0
 home: https://github.com/prometheus/blackbox_exporter
 sources:
diff --git a/charts/prometheus-blackbox-exporter/templates/_helpers.tpl b/charts/prometheus-blackbox-exporter/templates/_helpers.tpl
index 530613b8fd4c..ecd47ec533fb 100644
--- a/charts/prometheus-blackbox-exporter/templates/_helpers.tpl
+++ b/charts/prometheus-blackbox-exporter/templates/_helpers.tpl
@@ -150,11 +150,20 @@ securityContext:
 {{- end }}
 {{- with .Values.extraInitContainers }}
 initContainers:
-{{ toYaml . }}
+{{- if kindIs "string" . }}
+  {{- tpl . $ | nindent 2 }}
+{{- else }}
+  {{-  toYaml . | nindent 2 }}
+{{- end -}}
 {{- end }}
+
 containers:
 {{ with .Values.extraContainers }}
-  {{- toYaml . }}
+{{- if kindIs "string" . }}
+  {{- tpl . $ }}
+{{- else }}
+  {{-  toYaml . }}
+{{- end -}}
 {{- end }}
 - name: blackbox-exporter
   image: {{ include "prometheus-blackbox-exporter.image" . }}
diff --git a/charts/prometheus-blackbox-exporter/values.yaml b/charts/prometheus-blackbox-exporter/values.yaml
index 8606250c7e89..92b27f310a2b 100644
--- a/charts/prometheus-blackbox-exporter/values.yaml
+++ b/charts/prometheus-blackbox-exporter/values.yaml
@@ -46,9 +46,12 @@ extraVolumeMounts:
   #   mountPath: /etc/ssl/certs/ca-certificates.crt
 
 ## Additional InitContainers to initialize the pod
-##
+## This supports either a structured array or a templatable string
 extraInitContainers: []
 
+## This supports either a structured array or a templatable string
+
+# Array mode
 extraContainers: []
   # - name: oAuth2-proxy
   #   args:
@@ -70,6 +73,16 @@ extraContainers: []
   #     - mountPath: /etc/prometheus/secrets/blackbox-tls
   #       name: secret-blackbox-tls
 
+# String mode
+# extraContainers: |-
+#   - name: oAuth2-proxy
+#     args:
+#       - -https-address=:9116
+#       - -upstream=http://localhost:9115
+#       - -skip-auth-regex=^/metrics
+#       - -openshift-delegate-urls={"/":{"group":"monitoring.coreos.com","resource":"prometheuses","verb":"get"}}
+#     image: {{ .Values.global.imageRegistry }}/openshift/oauth-proxy:v1.1.0
+
 ## Enable pod security policy
 pspEnabled: true