apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: {{ include "postgresql.fullname" . }}-primary
  labels:
    {{- include "postgresql.labels" . | nindent 4 }}
    app.kubernetes.io/component: primary
spec:
  serviceName: {{ include "postgresql.fullname" . }}-headless
  replicas: 1
  selector:
    matchLabels:
      {{- include "postgresql.selectorLabels" . | nindent 6 }}
      app.kubernetes.io/component: primary
  template:
    metadata:
      labels:
        {{- include "postgresql.selectorLabels" . | nindent 8 }}
        app.kubernetes.io/component: primary
    spec:
      containers:
      - name: postgresql
        image: "{{ .Values.image.registry }}/{{ .Values.image.repository }}:{{ .Values.image.tag }}"
        imagePullPolicy: {{ .Values.image.pullPolicy }}
        ports:
        - name: postgres
          containerPort: 5432
          protocol: TCP
        env:
        - name: POSTGRES_DB
          value: {{ .Values.postgres.database | quote }}
        - name: POSTGRES_USER
          value: {{ .Values.postgres.user | quote }}
        - name: POSTGRES_PASSWORD
          valueFrom:
            secretKeyRef:
              name: {{ .Values.postgres.existingSecret | default (include "postgresql.fullname" .) }}
              key: {{ .Values.postgres.passwordKey }}
        {{- if .Values.replication.enabled }}
        - name: REPLICATION_PASSWORD
          valueFrom:
            secretKeyRef:
              name: {{ .Values.postgres.existingSecret | default (include "postgresql.fullname" .) }}
              key: {{ .Values.postgres.replicationPasswordKey }}
        {{- end }}
        - name: PGDATA
          value: /var/lib/postgresql/data/pgdata
        volumeMounts:
        - name: data
          mountPath: /var/lib/postgresql/data
        {{- if .Values.replication.enabled }}
        - name: config
          mountPath: /docker-entrypoint-initdb.d/primary-init.sh
          subPath: primary-init.sh
        {{- end }}
        livenessProbe:
          exec:
            command:
            - /bin/sh
            - -c
            - pg_isready -U {{ .Values.postgres.user }}
          initialDelaySeconds: 30
          periodSeconds: 10
          timeoutSeconds: 5
          failureThreshold: 6
        readinessProbe:
          exec:
            command:
            - /bin/sh
            - -c
            - pg_isready -U {{ .Values.postgres.user }}
          initialDelaySeconds: 5
          periodSeconds: 10
          timeoutSeconds: 5
          failureThreshold: 6
        resources:
          {{- toYaml .Values.primary.resources | nindent 10 }}
      volumes:
      {{- if .Values.replication.enabled }}
      - name: config
        configMap:
          name: {{ include "postgresql.fullname" . }}-config
          defaultMode: 0755
      {{- end }}
  volumeClaimTemplates:
  - metadata:
      name: data
    spec:
      accessModes:
        - {{ .Values.primary.persistence.accessMode }}
      resources:
        requests:
          storage: {{ .Values.primary.persistence.size }}
      {{- if .Values.primary.persistence.storageClass }}
      storageClassName: {{ .Values.primary.persistence.storageClass }}
      {{- end }}