[chart] check in helm charts

.github/workflows/build-installer-check.yml

@@ -44,4 +44,14 @@ jobs:
             exit 1
           else
             echo "No uncommitted changes detected in dist/install.yaml. The file is properly committed."
+          fi
+
+          if [[ -n $(git status --porcelain chart/) ]]; then
+            echo "::error::Running 'make build-chart' produced changes to chart/ that aren't committed to the repository."
+            echo "Please run 'make build-chart' locally and commit the changes to chart/ before pushing."
+            git status chart/
+            git diff chart
+            exit 1
+          else
+            echo "No uncommitted changes detected in chart/. The dir is properly committed."
           fi

chart/.helmignore

@@ -0,0 +1,23 @@
+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

chart/Chart.yaml

@@ -0,0 +1,21 @@
+apiVersion: v2
+name: chart
+description: A Helm chart for Kubernetes
+# A chart can be either an 'application' or a 'library' chart.
+#
+# Application charts are a collection of templates that can be packaged into versioned archives
+# to be deployed.
+#
+# Library charts provide useful utilities or functions for the chart developer. They're included as
+# a dependency of application charts to inject those utilities and functions into the rendering
+# pipeline. Library charts do not define any templates and therefore cannot be deployed.
+type: application
+# This is the chart version. This version number should be incremented each time you make changes
+# to the chart and its templates, including the app version.
+# Versions are expected to follow Semantic Versioning (https://semver.org/)
+version: 0.1.0
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application. Versions are not expected to
+# follow Semantic Versioning. They should reflect the version the application is using.
+# It is recommended to use it with quotes.
+appVersion: "0.1.0"

chart/templates/_helpers.tpl

@@ -0,0 +1,62 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "chart.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "chart.fullname" -}}
+{{- if .Values.fullnameOverride }}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- $name := default .Chart.Name .Values.nameOverride }}
+{{- if contains $name .Release.Name }}
+{{- .Release.Name | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
+{{- end }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "chart.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "chart.labels" -}}
+helm.sh/chart: {{ include "chart.chart" . }}
+{{ include "chart.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "chart.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "chart.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "chart.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "chart.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}

chart/templates/daemonset.yaml

@@ -0,0 +1,98 @@
+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+  name: {{ include "chart.fullname" . }}-z-prometheus-node-exporter
+  labels:
+    app.kubernetes.io/component: metrics
+    app.kubernetes.io/part-of: dz-prometheus-node-exporter
+  {{- include "chart.labels" . | nindent 4 }}
+spec:
+  selector:
+    matchLabels:
+      app.kubernetes.io/instance: node-exporter
+      app.kubernetes.io/name: dz-prometheus-node-exporter
+    {{- include "chart.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/component: metrics
+        app.kubernetes.io/instance: node-exporter
+        app.kubernetes.io/managed-by: Helm
+        app.kubernetes.io/name: dz-prometheus-node-exporter
+        app.kubernetes.io/part-of: dz-prometheus-node-exporter
+        app.kubernetes.io/version: 1.7.0
+        helm.sh/chart: prometheus-node-exporter-4.24.0
+      {{- include "chart.selectorLabels" . | nindent 8 }}
+      annotations:
+        cluster-autoscaler.kubernetes.io/safe-to-evict: "true"
+    spec:
+      automountServiceAccountToken: false
+      containers:
+      - args: {{- toYaml .Values.zPrometheusNodeExporter.nodeExporter.args | nindent 8
+          }}
+        env:
+        - name: HOST_IP
+          value: {{ quote .Values.zPrometheusNodeExporter.nodeExporter.env.hostIp }}
+        - name: KUBERNETES_CLUSTER_DOMAIN
+          value: {{ quote .Values.kubernetesClusterDomain }}
+        image: {{ .Values.zPrometheusNodeExporter.nodeExporter.image.repository }}:{{ .Values.zPrometheusNodeExporter.nodeExporter.image.tag
+          | default .Chart.AppVersion }}
+        imagePullPolicy: {{ .Values.zPrometheusNodeExporter.nodeExporter.imagePullPolicy
+          }}
+        livenessProbe:
+          failureThreshold: 3
+          httpGet:
+            path: /
+            port: 9101
+            scheme: HTTP
+          periodSeconds: 10
+          successThreshold: 1
+          timeoutSeconds: 1
+        name: node-exporter
+        ports:
+        - containerPort: 9101
+          name: metrics
+          protocol: TCP
+        readinessProbe:
+          failureThreshold: 3
+          httpGet:
+            path: /
+            port: 9101
+            scheme: HTTP
+          periodSeconds: 10
+          successThreshold: 1
+          timeoutSeconds: 1
+        resources: {}
+        securityContext: {{- toYaml .Values.zPrometheusNodeExporter.nodeExporter.containerSecurityContext
+          | nindent 10 }}
+        volumeMounts:
+        - mountPath: /host/proc
+          name: proc
+          readOnly: true
+        - mountPath: /host/sys
+          name: sys
+          readOnly: true
+        - mountPath: /host/root
+          mountPropagation: HostToContainer
+          name: root
+          readOnly: true
+      hostNetwork: true
+      hostPID: true
+      nodeSelector: {{- toYaml .Values.zPrometheusNodeExporter.nodeSelector | nindent 8
+        }}
+      securityContext: {{- toYaml .Values.zPrometheusNodeExporter.podSecurityContext |
+        nindent 8 }}
+      serviceAccountName: {{ include "chart.fullname" . }}-z-prometheus-node-exporter
+      tolerations:
+      - effect: NoSchedule
+        operator: Exists
+      volumes:
+      - hostPath:
+          path: /proc
+        name: proc
+      - hostPath:
+          path: /sys
+        name: sys
+      - hostPath:
+          path: /
+        name: root