Add Helm chart

deploy/helm/gitlab-clickhouse-exporter/.helmignore

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+# 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/

deploy/helm/gitlab-clickhouse-exporter/Chart.yaml

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+---
+apiVersion: v2
+name: gitlab-clickhouse-exporter
+description: A ClickHouse exporter for GitLab CI analytics.
+type: application
+
+version: 0.1.0
+appVersion: "v0.4.1"
+

deploy/helm/gitlab-clickhouse-exporter/templates/_helpers.tpl

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+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "gitlab-clickhouse-exporter.name" -}}
+{{- .Chart.Name | 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 "gitlab-clickhouse-exporter.fullname" -}}
+{{- if contains .Chart.Name .Release.Name }}
+{{- .Release.Name | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- printf "%s-%s" .Release.Name .Chart.Name | trunc 63 | trimSuffix "-" }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "gitlab-clickhouse-exporter.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "gitlab-clickhouse-exporter.labels" -}}
+helm.sh/chart: {{ include "gitlab-clickhouse-exporter.chart" . }}
+{{ include "gitlab-clickhouse-exporter.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "gitlab-clickhouse-exporter.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "gitlab-clickhouse-exporter.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "gitlab-clickhouse-exporter.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "gitlab-clickhouse-exporter.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}

deploy/helm/gitlab-clickhouse-exporter/templates/configmap.yaml

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+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ include "gitlab-clickhouse-exporter.fullname" . }}
+  labels:
+    {{- include "gitlab-clickhouse-exporter.labels" . | nindent 4 }}
+data:
+  config.yaml: |
+  {{- toYaml .Values.config | nindent 4 }}
+

deploy/helm/gitlab-clickhouse-exporter/templates/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "gitlab-clickhouse-exporter.fullname" . }}
+  labels:
+    {{- include "gitlab-clickhouse-exporter.labels" . | nindent 4 }}
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      {{- include "gitlab-clickhouse-exporter.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      {{- with .Values.podAnnotations }}
+      annotations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      labels:
+        {{- include "gitlab-clickhouse-exporter.selectorLabels" . | nindent 8 }}
+    spec:
+      serviceAccountName: {{ include "gitlab-clickhouse-exporter.serviceAccountName" . }}
+      securityContext:
+        {{- toYaml .Values.podSecurityContext | nindent 8 }}
+      containers:
+        - name: {{ .Chart.Name }}
+          securityContext:
+              {{- toYaml .Values.securityContext | nindent 12 }}
+          image: "{{ .Values.image.registry }}/{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          resources:
+              {{- toYaml .Values.resources | nindent 12 }}
+          volumeMounts:
+              - name: config
+                mountPath: /etc/gitlab-clickhouse-exporter/
+          ports:
+            - name: http
+              {{- $serverConfig := .Values.config.server | default dict }}
+              containerPort: {{ $serverConfig.port | default "8080" }}
+              protocol: TCP
+          livenessProbe:
+            httpGet:
+              path: /healthz/live
+              port: http
+          readinessProbe:
+            httpGet:
+              path: /healthz/ready
+              port: http
+          env: 
+              {{- toYaml .Values.env | nindent 12 }}
+          args: ["run", "--config", "/etc/gitlab-clickhouse-exporter/config.yaml"]
+      volumes:
+        - name: config
+          configMap:
+            name: {{ include "gitlab-clickhouse-exporter.fullname" . }}
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+

deploy/helm/gitlab-clickhouse-exporter/templates/service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "gitlab-clickhouse-exporter.fullname" . }}
+  labels:
+    {{- include "gitlab-clickhouse-exporter.labels" . | nindent 4 }}
+spec:
+  type: {{ .Values.service.type }}
+  ports:
+    - port: {{ .Values.service.port }}
+      targetPort: http
+      protocol: TCP
+      name: http
+  selector:
+    {{- include "gitlab-clickhouse-exporter.selectorLabels" . | nindent 4 }}
+

deploy/helm/gitlab-clickhouse-exporter/templates/serviceaccount.yaml

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+{{- if .Values.serviceAccount.create -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "gitlab-clickhouse-exporter.serviceAccountName" . }}
+  labels:
+    {{- include "gitlab-clickhouse-exporter.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+{{- end }}
+

deploy/helm/gitlab-clickhouse-exporter/values.yaml

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+# Default values for gitlab-clickhouse-exporter.
+
+image:
+  registry: docker.io
+  repository: cluttrdev/gitlab-clickhouse-exporter
+  # Overrides the image tag whose default is the chart appVersion.
+  tag: ""
+  pullPolicy: Always
+
+podAnnotations: {}
+
+podSecurityContext:
+  seccompProfile:
+    type: RuntimeDefault
+
+securityContext:
+  allowPrivilegeEscalation: false
+  capabilities:
+    drop: [ALL]
+  readOnlyRootFilesystem: true
+  runAsNonRoot: true
+  runAsUser: 1000
+  runAsGroup: 1000
+
+resources: {}
+#  requests:
+#    cpu: 100m
+#    memory: 128Mi
+#  limits:
+#    cpu: 200m
+#    memory: 256Mi
+
+service:
+  type: ClusterIP
+  port: 80
+
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: 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: ""
+
+nodeSelector: {}
+
+tolerations: []
+
+affinity: {}
+
+env: []
+
+# ---
+
+config: {}
+