feat(kromgo): add helm release

kubernetes/talos-flux/apps/observability/kromgo/app/helm-release.yaml

@@ -0,0 +1,112 @@
+---
+# yaml-language-server: $schema=https://raw.githubusercontent.com/bjw-s/helm-charts/main/charts/other/app-template/schemas/helmrelease-helm-v2beta2.schema.json
+apiVersion: helm.toolkit.fluxcd.io/v2beta2
+kind: HelmRelease
+metadata:
+  name: &app kromgo
+spec:
+  interval: 30m
+  chart:
+    spec:
+      chart: app-template
+      version: 3.1.0
+      sourceRef:
+        kind: HelmRepository
+        name: bjw-s-charts
+        namespace: flux-system
+  install:
+    remediation:
+      retries: 3
+  upgrade:
+    cleanupOnFail: true
+    remediation:
+      strategy: rollback
+      retries: 3
+  values:
+    controllers:
+      kromgo:
+        replicas: 2
+        strategy: RollingUpdate
+        annotations:
+          reloader.stakater.com/auto: "true"
+        containers:
+          app:
+            image:
+              repository: ghcr.io/kashalls/kromgo
+              tag: 0.3.1@sha256:5ba40b2fda00ab7adb039c0be955161b84febfe9e9e7816d5f1f87d9ab41f173
+            env:
+              PROMETHEUS_URL: http://prometheus-thanos-discovery.observability.svc.cluster.local:10902
+              PORT: &port 80
+            probes:
+              liveness: &probes
+                enabled: true
+                custom: true
+                spec:
+                  httpGet:
+                    path: /-/ready
+                    port: *port
+                  initialDelaySeconds: 0
+                  periodSeconds: 10
+                  timeoutSeconds: 1
+                  failureThreshold: 3
+              readiness: *probes
+            securityContext:
+              allowPrivilegeEscalation: false
+              readOnlyRootFilesystem: true
+              capabilities:
+                drop:
+                  - ALL
+            resources:
+              requests:
+                cpu: 10m
+              limits:
+                memory: 64Mi
+        pod:
+          securityContext:
+            runAsUser: 568
+            runAsGroup: 568
+            runAsNonRoot: true
+          topologySpreadConstraints:
+            - maxSkew: 1
+              topologyKey: kubernetes.io/hostname
+              whenUnsatisfiable: DoNotSchedule
+              labelSelector:
+                matchLabels:
+                  app.kubernetes.io/name: *app
+    service:
+      app:
+        controller: kromgo
+        ports:
+          http:
+            port: *port
+    ingress:
+      app:
+        className: traefik
+        annotations:
+          cert-manager.io/cluster-issuer: letsencrypt-production
+          kubernetes.io/tls-acme: "true"
+          traefik.ingress.kubernetes.io/router.entrypoints: websecure
+          traefik.ingress.kubernetes.io/affinity: "true"
+          traefik.ingress.kubernetes.io/router.tls: "true"
+          # external-dns.alpha.kubernetes.io/target: "${SECRET_CLOUDFLARE_TUNNEL_ID}.cfargotunnel.com"
+          # hajimari.io/icon: video-input-antenna
+          # hajimari.io/enable: "true"
+        hosts:
+          - host: &host "{{ .Release.Name }}.techtales.io"
+            paths:
+              - path: /
+                service:
+                  identifier: app
+                  port: http
+        tls:
+          - hosts:
+              - *host
+            secretName: "{{ .Release.Name }}-tls"
+    persistence:
+      config-file:
+        type: configMap
+        name: kromgo-configmap
+        globalMounts:
+          - path: /kromgo/config.yaml
+            subPath: config.yaml
+            readOnly: true

kubernetes/talos-flux/apps/observability/kromgo/app/kustomization.yaml

@@ -0,0 +1,21 @@
+---
+# yaml-language-server: $schema=https://json.schemastore.org/kustomization
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+  - ./helm-release.yaml
+configMapGenerator:
+  - name: kromgo-configmap
+    files:
+      - config.yaml=./resources/config.yaml
+generatorOptions:
+  disableNameSuffixHash: true
+  labels:
+    app.kubernetes.io/name: kromgo
+    app.kubernetes.io/instance: kromgo
+    app.kubernetes.io/managed-by: kustomize
+    app.kubernetes.io/component: kromgo
+    app.kubernetes.io/part-of: observability
+commonLabels:
+  app.kubernetes.io/name: kromgo
+  app.kubernetes.io/instance: kromgo

kubernetes/talos-flux/apps/observability/kromgo/app/resources/config.yaml

@@ -0,0 +1,67 @@
+---
+# yaml-language-server: $schema=https://raw.githubusercontent.com/kashalls/kromgo/main/config.schema.json
+metrics:
+  - name: talos_version
+    query: node_os_info{cluster="main", name="Talos"}
+    label: version_id
+
+  - name: kubernetes_version
+    query: kubernetes_build_info{cluster="main", service="kubernetes"}
+    label: git_version
+
+  - name: cluster_node_count
+    query: count(count by (node) (kube_node_status_condition{cluster="main", condition="Ready"}))
+    colors:
+      - { color: "green", min: 0, max: 9999 }
+
+  - name: cluster_pod_count
+    query: sum(kube_pod_status_phase{cluster="main", phase="Running"})
+    colors:
+      - { color: "green", min: 0, max: 9999 }
+
+  - name: cluster_cpu_usage
+    query: round(avg(instance:node_cpu_utilisation:rate5m{cluster="main"}) * 100, 0.1)
+    suffix: "%"
+    colors:
+      - { color: "green", min: 0, max: 35 }
+      - { color: "orange", min: 36, max: 75 }
+      - { color: "red", min: 76, max: 9999 }
+
+  - name: cluster_memory_usage
+    query: round(sum(node_memory_MemTotal_bytes{cluster="main"} - node_memory_MemAvailable_bytes{cluster="main"}) / sum(node_memory_MemTotal_bytes{cluster="main"}) * 100, 0.1)
+    suffix: "%"
+    colors:
+      - { color: green, min: 0, max: 35 }
+      - { color: orange, min: 36, max: 75 }
+      - { color: red, min: 76, max: 9999 }
+
+  - name: cluster_power_usage
+    query: round(upsHighPrecOutputCurrent * upsHighPrecOutputVoltage * 0.01, 0.1)
+    suffix: "w"
+    colors:
+      - { color: "green", min: 0, max: 400 }
+      - { color: "orange", min: 401, max: 750 }
+      - { color: "red", min: 751, max: 9999 }
+
+  - name: cluster_age_days
+    query: round((time() - min(kube_node_created{cluster="main"}) ) / 86400)
+    suffix: "d"
+    colors:
+      - { color: "green", min: 0, max: 180 }
+      - { color: "orange", min: 181, max: 360 }
+      - { color: "red", min: 361, max: 9999 }
+
+  - name: cluster_uptime_days
+    query: round(avg(node_time_seconds{cluster="main"} - node_boot_time_seconds{cluster="main"}) / 86400)
+    suffix: "d"
+    colors:
+      - { color: "green", min: 0, max: 180 }
+      - { color: "orange", min: 181, max: 360 }
+      - { color: "red", min: 361, max: 9999 }
+
+  - name: prometheus_active_alerts
+    query: count(ALERTS{alertstate="firing"})
+    colors:
+      - { color: "green", min: 0, max: 1 }
+      - { color: "orange", min: 2, max: 4 }
+      - { color: "red", min: 5, max: 9999 }

kubernetes/talos-flux/apps/observability/kromgo/flux-sync.yaml

@@ -0,0 +1,21 @@
+---
+# yaml-language-server: $schema=https://raw.githubusercontent.com/fluxcd-community/flux2-schemas/main/kustomization-kustomize-v1.json
+apiVersion: kustomize.toolkit.fluxcd.io/v1
+kind: Kustomization
+metadata:
+  name: apps-kromgo
+  namespace: flux-system
+spec:
+  interval: 10m
+  path: ./kubernetes/talos-flux/apps/observability/kromgo/app
+  prune: true
+  sourceRef:
+    kind: GitRepository
+    name: home-ops
+  targetNamespace: observability
+  commonMetadata:
+    labels:
+      app.kubernetes.io/name: kromgo
+  wait: true
+  dependsOn:
+    - name: apps-kube-prometheus-stack

kubernetes/talos-flux/apps/observability/kustomization.yaml

@@ -7,6 +7,7 @@ resources:
   - ./alertmanager-discord/flux-sync.yaml
   - ./botkube/flux-sync.yaml
   - ./grafana/flux-sync.yaml
+  - ./kromgo/flux-sync.yaml
   - ./kube-prometheus-stack/flux-sync.yaml
   - ./loki/flux-sync.yaml
   - ./promtail/flux-sync.yaml