DolphinScheduler/docker/kubernetes/dolphinscheduler/templates/deployment-dolphinscheduler-api.yaml

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# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
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apiVersion: apps/v1
kind: Deployment
metadata:
  name: {{ include "dolphinscheduler.fullname" . }}-api
  labels:
    app.kubernetes.io/name: {{ include "dolphinscheduler.fullname" . }}-api
    app.kubernetes.io/instance: {{ .Release.Name }}
    app.kubernetes.io/managed-by: {{ .Release.Service }}
    app.kubernetes.io/component: api
spec:
  replicas: {{ .Values.api.replicas }}
  selector:
    matchLabels:
      app.kubernetes.io/name: {{ include "dolphinscheduler.fullname" . }}-api
      app.kubernetes.io/instance: {{ .Release.Name }}
      app.kubernetes.io/managed-by: {{ .Release.Service }}
      app.kubernetes.io/component: api
  strategy:
    type: {{ .Values.api.strategy.type | quote }}
    rollingUpdate:
      maxSurge: {{ .Values.api.strategy.rollingUpdate.maxSurge | quote }}
      maxUnavailable: {{ .Values.api.strategy.rollingUpdate.maxUnavailable | quote }}
  template:
    metadata:
      labels:
        app.kubernetes.io/name: {{ include "dolphinscheduler.fullname" . }}-api
        app.kubernetes.io/instance: {{ .Release.Name }}
        app.kubernetes.io/managed-by: {{ .Release.Service }}
        app.kubernetes.io/component: api
    spec:
      {{- if .Values.api.affinity }}
      affinity: {{- toYaml .Values.api.affinity | nindent 8 }}
      {{- end }}
      {{- if .Values.api.nodeSelector }}
      nodeSelector: {{- toYaml .Values.api.nodeSelector | nindent 8 }}
      {{- end }}
      {{- if .Values.api.tolerations }}
      tolerations: {{- toYaml . | nindent 8 }}
      {{- end }}
      initContainers:
        - name: init-postgresql
          image: busybox:1.31.0
          command:
            - /bin/sh
            - -ec
            - |
              while ! nc -z ${POSTGRESQL_HOST} ${POSTGRESQL_PORT}; do
                  counter=$((counter+1))
                  if [ $counter == 5 ]; then
                      echo "Error: Couldn't connect to postgresql."
                      exit 1
                  fi
                  echo "Trying to connect to postgresql at ${POSTGRESQL_HOST}:${POSTGRESQL_PORT}. Attempt $counter."
                  sleep 60
              done              
          env:
            - name: POSTGRESQL_HOST
              {{- if .Values.postgresql.enabled }}
              value: {{ template "dolphinscheduler.postgresql.fullname" . }}
              {{- else }}
              value: {{ .Values.externalDatabase.host | quote }}
            {{- end }}
            - name: POSTGRESQL_PORT
              {{- if .Values.postgresql.enabled }}
              value: "5432"
              {{- else }}
              value: {{ .Values.externalDatabase.port }}
            {{- end }}
      containers:
        - name: {{ include "dolphinscheduler.fullname" . }}-api
          image: {{ include "dolphinscheduler.image.repository" . | quote }}
          args:
            - "api-server"
          ports:
            - containerPort: 12345
              name: tcp-port
          imagePullPolicy: {{ .Values.image.pullPolicy }}
          env:
            - name: TZ
              value: {{ .Values.timezone }}
            - name: POSTGRESQL_HOST
              {{- if .Values.postgresql.enabled }}
              value: {{ template "dolphinscheduler.postgresql.fullname" . }}
              {{- else }}
              value: {{ .Values.externalDatabase.host | quote }}
              {{- end }}
            - name: POSTGRESQL_PORT
              {{- if .Values.postgresql.enabled }}
              value: "5432"
              {{- else }}
              value: {{ .Values.externalDatabase.port }}
              {{- end }}
            - name: POSTGRESQL_USERNAME
              {{- if .Values.postgresql.enabled }}
              value: {{ .Values.postgresql.postgresqlUsername }}
              {{- else }}
              value: {{ .Values.externalDatabase.username | quote }}
              {{- end }}
            - name: POSTGRESQL_PASSWORD
              valueFrom:
                secretKeyRef:
                  {{- if .Values.postgresql.enabled }}
                  name: {{ template "dolphinscheduler.postgresql.fullname" . }}
                  key: postgresql-password
                  {{- else }}
                  name: {{ printf "%s-%s" .Release.Name "externaldb"  }}
                  key: db-password
                  {{- end }}
            - name: POSTGRESQL_DATABASE
              {{- if .Values.postgresql.enabled }}
              value: {{ .Values.postgresql.postgresqlDatabase }}
              {{- else }}
              value: {{ .Values.externalDatabase.database | quote }}
              {{- end }}
            - name: ZOOKEEPER_QUORUM
              {{- if .Values.zookeeper.enabled }}
              value: "{{ template "dolphinscheduler.zookeeper.quorum" . }}"
              {{- else }}
              value: {{ .Values.externalZookeeper.zookeeperQuorum }}
              {{- end }}
          {{- if .Values.api.livenessProbe.enabled }}
          livenessProbe:
            tcpSocket:
              port: 12345
            initialDelaySeconds: {{ .Values.api.livenessProbe.initialDelaySeconds }}
            periodSeconds: {{ .Values.api.livenessProbe.periodSeconds }}
            timeoutSeconds: {{ .Values.api.livenessProbe.timeoutSeconds }}
            successThreshold: {{ .Values.api.livenessProbe.successThreshold }}
            failureThreshold: {{ .Values.api.livenessProbe.failureThreshold }}
          {{- end }}
          {{- if .Values.api.readinessProbe.enabled }}
          readinessProbe:
            tcpSocket:
              port: 12345
            initialDelaySeconds: {{ .Values.api.readinessProbe.initialDelaySeconds }}
            periodSeconds: {{ .Values.api.readinessProbe.periodSeconds }}
            timeoutSeconds: {{ .Values.api.readinessProbe.timeoutSeconds }}
            successThreshold: {{ .Values.api.readinessProbe.successThreshold }}
            failureThreshold: {{ .Values.api.readinessProbe.failureThreshold }}
          {{- end }}
          volumeMounts:
            - mountPath: "/opt/dolphinscheduler/logs"
              name: {{ include "dolphinscheduler.fullname" . }}-api
      volumes:
        - name: {{ include "dolphinscheduler.fullname" . }}-api
          {{- if .Values.api.persistentVolumeClaim.enabled }}
          persistentVolumeClaim:
            claimName: {{ include "dolphinscheduler.fullname" . }}-api
          {{- else }}
          emptyDir: {}
          {{- end }}