flink-kube-operator/helm/chart/templates/flink/deploy.yaml

{{- define "flink.env" -}}
- name: JOB_MANAGER_RPC_ADDRESS
  value: "localhost"
- name: NAMESPACE
  value: {{ .Release.Namespace }}
- name: FLINK_PROPERTIES
  value: |
    jobmanager.rpc.address: localhost
    jobmanager.memory.process.size: 2048m
    taskmanager.memory.process.size: 2048m
    taskmanager.data.port: 6125
    taskmanager.numberOfTaskSlots: {{ .Values.flink.taskManager.numberOfTaskSlots }}
    parallelism.default: {{ .Values.flink.parallelism.default }}
    state.backend: {{ .Values.flink.state.backend }}
    rest.port: 8081
    rootLogger.level = DEBUG
    rootLogger.appenderRef.console.ref = ConsoleAppender
    high-availability.type: kubernetes
    kubernetes.namespace: {{ .Release.Namespace }}
    kubernetes.cluster-id: {{ .Release.Name }}-cluster
    execution.checkpointing.interval: 5min
    execution.checkpointing.mode: EXACTLY_ONCE
    web.upload.dir: {{ .Values.flink.state.data.dir }}/web-upload
    state.checkpoints.dir: file://{{ .Values.flink.state.data.dir }}/checkpoints
    state.backend.rocksdb.localdir: file://{{ .Values.flink.state.data.dir }}/rocksdb
    high-availability.storageDir: file://{{ .Values.flink.state.ha.dir }}
    state.savepoints.dir: file://{{ .Values.flink.state.savepoints.dir }}
    state.backend.incremental: false
    rest.profiling.enabled: true 
{{- end }}

{{- define "flink.volumeMounts" -}}
- name: flink-data
  mountPath: {{ .Values.flink.state.data.dir }}/data
- name: flink-data
  mountPath: {{ .Values.flink.state.data.dir }}/rocksdb
  subPath: rocksdb
- name: flink-data
  mountPath: {{ .Values.flink.state.data.dir }}/checkpoints
  subPath: checkpoints
- name: flink-data
  mountPath: {{ .Values.flink.state.data.dir }}/web-upload
  subPath: web-upload
- name: flink-ha
  mountPath: {{ .Values.flink.state.ha.dir }}
- name: flink-savepoints
  mountPath: {{ .Values.flink.state.savepoints.dir }}
{{- end }}

{{- define "flink.volumes" -}}
- name: flink-data
  persistentVolumeClaim:
    claimName: {{ .Values.flink.state.data.pvcName }}
- name: flink-savepoints
  persistentVolumeClaim:
    claimName: {{ .Values.flink.state.savepoints.pvcName }}
- name: flink-ha
  persistentVolumeClaim:
    claimName: {{ .Values.flink.state.ha.pvcName }}
{{- end }}

apiVersion: apps/v1
kind: Deployment
metadata:
  name: {{ .Release.Name }}-flink
  labels:
    app.kubernetes.io/name: {{ .Release.Name }}-flink
    app.kubernetes.io/instance: {{ .Release.Name }}
spec:
  replicas: 1
  strategy:
    type: Recreate
  selector:
    matchLabels:
      app.kubernetes.io/name: {{ .Release.Name }}-flink
      app.kubernetes.io/instance: {{ .Release.Name }}
  template:
    metadata:
      labels:
        app.kubernetes.io/name: {{ .Release.Name }}-flink
        app.kubernetes.io/instance: {{ .Release.Name }}
    spec:
      serviceAccountName: {{ include "flink-kube-operator.serviceAccountName" . }}
      initContainers:
        - name: volume-mount-hack
          image: {{ .Values.flink.image.repository }}:{{ .Values.flink.image.tag }}
          runAsUser: 0
          command: ["sh", "-c", "chown -R flink {{ .Values.flink.state.data.dir }}/data {{ .Values.flink.state.data.dir }}/rocksdb {{ .Values.flink.state.data.dir }}/checkpoints {{ .Values.flink.state.data.dir }}/web-upload {{ .Values.flink.state.ha.dir }} {{ .Values.flink.state.savepoints.dir }}"]
          volumeMounts:
            {{- include "flink.volumeMounts" . | nindent 12 }}
      containers:
        - name: jobmanager
          image: {{ .Values.flink.image.repository }}:{{ .Values.flink.image.tag }}
          imagePullPolicy: Always
          args: ["jobmanager"]
          ports:
            - containerPort: 6123  # JobManager RPC port
              name: rpc
            - containerPort: 6124  # JobManager blob server port
              name: blob
            - containerPort: 6125  # JobManager queryable state port
              name: query
            - containerPort: 8081  # JobManager Web UI port
              name: ui
          env:
            {{- include "flink.env" . | nindent 12 }}
            - name: POD_IP
              valueFrom:
                fieldRef:
                  fieldPath: status.podIP
          volumeMounts:
            {{- include "flink.volumeMounts" . | nindent 12 }}

        - name: taskmanager
          image: {{ .Values.flink.image.repository }}:{{ .Values.flink.image.tag }}
          imagePullPolicy: Always
          args: ["taskmanager"]
          ports:
            - containerPort: 6121  # TaskManager data port
              name: data
            - containerPort: 6122  # TaskManager RPC port
              name: rpc
          env:
            {{- include "flink.env" . | nindent 12 }}
            - name: POD_IP
              valueFrom:
                fieldRef:
                  fieldPath: status.podIP
          volumeMounts:
            {{- include "flink.volumeMounts" . | nindent 12 }}
        - name: operator
          securityContext:
            {{- toYaml .Values.securityContext | nindent 12 }}
          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
          imagePullPolicy: {{ .Values.image.pullPolicy }}
          ports:
            - name: http
              containerPort: {{ .Values.service.port }}
              protocol: TCP
          env:
            - name: FLINK_API_URL
              value: localhost:8081
            - name: SAVEPOINT_PATH
              value: file://{{ .Values.flink.state.savepoints.dir }}
          resources:
            {{- toYaml .Values.resources | nindent 12 }}
          volumeMounts:
            {{- include "flink.volumeMounts" . | nindent 12 }}
      volumes:
        {{- include "flink.volumes" . | nindent 8 }}

      {{- with .Values.nodeSelector }}
      nodeSelector:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      {{- with .Values.affinity }}
      affinity:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      {{- with .Values.tolerations }}
      tolerations:
        {{- toYaml . | nindent 8 }}
      {{- end }}