charts/postgresql-walg/templates/deployment.yaml

{{- $pgConfig := default dict .Values.postgresConfig -}}
{{- if .Values.backup.enabled }}
  {{- $pgConfig := merge $pgConfig (default dict .Values.backup.config) -}}
{{- end -}}

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: {{ template "postgresql.fullname" . }}
  labels:
    app: {{ template "postgresql.name" . }}
    chart: {{ template "postgresql.chart" . }}
    release: {{ .Release.Name }}
    heritage: {{ .Release.Service }}
{{- with .Values.deploymentAnnotations }}
  annotations:
{{ toYaml . | indent 4 }}
{{- end }}
spec:
  selector:
    matchLabels:
      app: {{ template "postgresql.name" . }}
      release: {{ .Release.Name }}
  template:
    metadata:
      labels:
        app: {{ template "postgresql.name" . }}
        release: {{ .Release.Name }}
{{- with .Values.podAnnotations }}
      annotations:
{{ toYaml . | indent 8 }}
{{- end }}
    spec:
      {{- if .Values.affinity }}
      affinity:
{{ toYaml .Values.affinity | indent 8 }}
      {{- end }}
      {{- if .Values.nodeSelector }}
      nodeSelector:
{{ toYaml .Values.nodeSelector | indent 8 }}
      {{- end }}
      {{- if .Values.tolerations }}
      tolerations:
{{ toYaml .Values.tolerations | indent 8 }}
      {{- end }}
      {{- if .Values.schedulerName }}
      schedulerName: "{{ .Values.schedulerName }}"
      {{- end }}
      containers:
      - name: {{ template "postgresql.fullname" . }}
        image: "{{ .Values.image }}:{{ .Values.imageTag }}"
        imagePullPolicy: {{ default "" .Values.imagePullPolicy | quote }}
        command: ["./entrypoint.sh", "postgres"]
        args:
          {{- range $key, $value := $pgConfig }}
          - -c
          - "{{ $key | snakecase }}={{ $value }}"
          {{- end }}
        env:
        - name: POSTGRES_USER
          value: {{ default "postgres" .Values.postgresUser | quote }}
          # Required for pg_isready in the health probes.
        - name: PGUSER
          value: {{ default "postgres" .Values.postgresUser | quote }}
        - name: POSTGRES_DB
          value: {{ default "" .Values.postgresDatabase | quote }}
        - name: POSTGRES_INITDB_ARGS
          value: {{ default "" .Values.postgresInitdbArgs | quote }}
        - name: PGDATA
          value: /var/lib/postgresql/data/pgdata
        {{- if .Values.backup.enabled }}
        - name: AWS_ACCESS_KEY_ID
          valueFrom:
            secretKeyRef:
              name: {{ template "postgresql.secretName" . }}
              key: s3-access-key
        - name: AWS_SECRET_ACCESS_KEY
          valueFrom:
            secretKeyRef:
              name: {{ template "postgresql.secretName" . }}
              key: s3-secret-key
        - name: AWS_ENDPOINT
          value: {{ .Values.backup.s3.endpoint | quote }}
        - name: WALE_S3_PREFIX
          value: {{ .Values.backup.s3.prefix | quote }}
        - name: AWS_REGION
          value: {{ default "us-west-2" .Values.backup.s3.region | quote }}
        - name: POSTGRES_MODE
          value: {{ default "backup" .Values.backup.mode }}
        - name: WALG_DELETE_RETAIN
          value: {{ default "15" .Values.backup.deleteRetain | quote }}
        - name: WALG_BASE_BACKUP_IN
          value: {{ default "0 4 * * *" .Values.backup.baseBackupIn | quote }}
        {{- end -}}
        {{- if .Values.usePasswordFile }}
        - name: POSTGRES_PASSWORD_FILE
          value: /conf/postgres-password
        {{- else }}
        - name: POSTGRES_PASSWORD
          valueFrom:
            secretKeyRef:
              name: {{ template "postgresql.secretName" . }}
              key: postgres-password
        {{- end }}
        - name: POD_IP
          valueFrom: { fieldRef: { fieldPath: status.podIP } }
        ports:
        - name: postgresql
          containerPort: 5432
        livenessProbe:
          exec:
            command:
            - sh
            - -c
            - exec pg_isready --host $POD_IP
          initialDelaySeconds: {{ .Values.probes.liveness.initialDelay }}
          timeoutSeconds: {{ .Values.probes.liveness.timeoutSeconds }}
          failureThreshold: {{ .Values.probes.liveness.failureThreshold }}
        readinessProbe:
          exec:
            command:
            - sh
            - -c
            - exec pg_isready --host $POD_IP
          initialDelaySeconds: {{ .Values.probes.readiness.initialDelay }}
          timeoutSeconds: {{ .Values.probes.readiness.timeoutSeconds }}
          periodSeconds: {{ .Values.probes.readiness.periodSeconds }}
        resources:
{{ toYaml .Values.resources | indent 10 }}
        volumeMounts:
        - name: data
          mountPath: {{ .Values.persistence.mountPath }}
          subPath: {{ .Values.persistence.subPath }}
        {{- if .Values.usePasswordFile }}
        - name: password-file
          mountPath: /conf
          readOnly: true
        {{- end }}
{{- if .Values.metrics.enabled }}
      - name: metrics
        image: "{{ .Values.metrics.image }}:{{ .Values.metrics.imageTag }}"
        imagePullPolicy: {{ default "" .Values.metrics.imagePullPolicy | quote }}
        env:
        - name: DATA_SOURCE_NAME
          value: postgresql://{{ default "postgres" .Values.postgresUser }}@127.0.0.1:5432?sslmode=disable
        ports:
        - name: metrics
          containerPort: 9187
        {{- if .Values.metrics.customMetrics }}
        args: ["-extend.query-path", "/conf/custom-metrics.yaml"]
        volumeMounts:
          - name: custom-metrics
            mountPath: /conf
            readOnly: true
        {{- end }}
        resources:
{{ toYaml .Values.metrics.resources | indent 10 }}
{{- end }}
      volumes:
      - name: data
      {{- if .Values.persistence.enabled }}
        persistentVolumeClaim:
          claimName: {{ .Values.persistence.existingClaim | default (include "postgresql.fullname" .) }}
      {{- else }}
        emptyDir: {}
      {{- end }}
      {{- if and .Values.metrics.enabled .Values.metrics.customMetrics }}
      - name: custom-metrics
        valueFrom:
          configMapKeyRef:
            name: {{ template "postgresql.fullname" . }}
            key: custom-metrics.yaml
      {{- end }}
      {{- if .Values.usePasswordFile }}
      - name: password-file
        secret:
          secretName: {{ template "postgresql.secretName" . }}
          items:
            - key: postgres-password
              path: postgres-password
      {{- end }}
      {{- if .Values.imagePullSecrets }}
      imagePullSecrets:
        - name: {{ .Values.imagePullSecrets }}
      {{- end }}