Added helm chart (#83)

charts/bird-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/

charts/bird-exporter/Chart.yaml

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+apiVersion: v2
+name: bird-exporter
+description: Exporter for bird-exporter
+type: application
+version: 0.1.0
+appVersion: "1.4.1"
+sources:
+  - https://github.com/czerwonk/bird-exporter

charts/bird-exporter/templates/_helpers.tpl

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

charts/bird-exporter/templates/daemonset.yaml

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+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+  name: {{ include "bird-exporter.fullname" . }}
+  labels:
+    {{- include "bird-exporter.labels" . | nindent 4 }}
+spec:
+  selector:
+    matchLabels:
+      {{- include "bird-exporter.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      {{- with .Values.podAnnotations }}
+      annotations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      labels:
+        {{- include "bird-exporter.selectorLabels" . | nindent 8 }}
+    spec:
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      securityContext:
+        {{- toYaml .Values.podSecurityContext | nindent 8 }}
+      containers:
+        - name: {{ .Chart.Name }}
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          args:
+            {{- toYaml .Values.exporter.args | nindent 12 }}
+          ports:
+            - name: http-metrics
+              containerPort: 9324
+              protocol: TCP
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+          volumeMounts:
+          - mountPath: /var/run/bird
+            name: bird-socket
+            readOnly: true
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      volumes:
+      - name: bird-socket
+        hostPath:
+          path: {{ .Values.exporter.birdSocketPath }}

charts/bird-exporter/templates/service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "bird-exporter.fullname" . }}-metrics
+  labels:
+    {{- include "bird-exporter.labels" . | nindent 4 }}
+spec:
+  type: ClusterIP
+  ports:
+    - targetPort: http-metrics
+      protocol: TCP
+      port: 9324
+      name: http-metrics
+  selector:
+    {{- include "bird-exporter.selectorLabels" . | nindent 4 }}

charts/bird-exporter/templates/servicemonitor.yaml

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+{{- if .Values.serviceMonitor.enabled }}
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: {{ include "bird-exporter.fullname" . }}
+spec:
+  jobLabel: {{ .Values.serviceMonitor.jobLabel | quote }}
+  namespaceSelector:
+    matchNames:
+      - {{ .Release.Namespace }}
+  selector:
+    matchLabels:
+      {{- include "bird-exporter.labels" . | nindent 6 }}
+  endpoints:
+  - port: http-metrics
+    {{- if .Values.serviceMonitor.metricRelabelings }}
+    metricRelabelings:
+      {{- toYaml .Values.serviceMonitor.metricRelabelings | nindent 6 }}
+    {{- end }}
+    {{- if .Values.serviceMonitor.relabelings }}
+    relabelings:
+      {{- toYaml .Values.serviceMonitor.relabelings | nindent 6 }}
+    {{- end }}
+{{- end }}

charts/bird-exporter/values.yaml

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+image:
+  repository: czerwonk/bird_exporter
+  pullPolicy: IfNotPresent
+  # Overrides the image tag whose default is the chart appVersion.
+  tag: ""
+
+exporter:
+  args:
+    - "-format.new=true"
+    - "-bird.socket=/var/run/bird/bird.ctl"
+    - "-bird.socket6=/var/run/bird/bird6.ctl"
+  # Host path of where the bird socket is.
+  # This path will then be mounted into /var/run/bird in the container.
+  birdSocketPath: "/var/run/bird"
+
+imagePullSecrets: []
+nameOverride: ""
+fullnameOverride: ""
+
+serviceMonitor:
+  enabled: false
+  jobLabel: "app.kubernetes.io/name"
+
+  metricRelabelings: []
+  # - action: keep
+  #   regex: 'bird_.+'
+  #   sourceLabels: [__name__]
+
+  relabelings: []
+  # - action: replace
+  #   sourceLabels: [__meta_kubernetes_pod_node_name]
+  #   targetLabel: nodename
+
+podAnnotations: {}
+
+podSecurityContext:
+  fsGroup: 2000
+
+securityContext:
+  capabilities:
+    drop:
+    - ALL
+  readOnlyRootFilesystem: true
+  runAsNonRoot: true
+  runAsUser: 1000
+
+resources: {}
+  # limits:
+  #   cpu: 100m
+  #   memory: 32Mi
+  # requests:
+  #   cpu: 100m
+  #   memory: 32Mi
+
+nodeSelector: {}
+
+tolerations: []
+
+affinity: {}