apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: {{ include "wordpress-website.fullname" . }}-postgresql
  labels:
    {{- include "wordpress-website.labels" . | nindent 4 }}
    app.kubernetes.io/component: database
spec:
  serviceName: {{ include "wordpress-website.fullname" . }}-postgresql
  replicas: 1
  selector:
    matchLabels:
      {{- include "wordpress-website.selectorLabels" . | nindent 6 }}
      app.kubernetes.io/component: database
  template:
    metadata:
      labels:
        {{- include "wordpress-website.selectorLabels" . | nindent 8 }}
        app.kubernetes.io/component: database
    spec:
      securityContext:
        {{- toYaml .Values.postgresql.podSecurityContext | nindent 8 }}
      containers:
        - name: postgresql
          image: "{{ .Values.postgresql.image.repository }}:{{ .Values.postgresql.image.tag }}"
          imagePullPolicy: {{ .Values.postgresql.image.pullPolicy }}
          ports:
            - name: postgresql
              containerPort: 5432
              protocol: TCP
          env:
            - name: POSTGRES_DB
              value: {{ .Values.postgresql.database }}
            - name: POSTGRES_USER
              value: {{ .Values.postgresql.username }}
            - name: POSTGRES_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: {{ include "wordpress-website.fullname" . }}-postgresql
                  key: postgresql-password
            - name: PGDATA
              value: /var/lib/postgresql/data/pgdata
            - name: PGUSER
              value: {{ .Values.postgresql.username }}
            - name: PGDATABASE
              value: {{ .Values.postgresql.database }}
          livenessProbe:
            exec:
              command:
                - /bin/sh
                - -c
                - exec pg_isready -U "$POSTGRES_USER" -d "$POSTGRES_DB" -h 127.0.0.1 -p 5432
            initialDelaySeconds: 30
            periodSeconds: 10
            timeoutSeconds: 5
            successThreshold: 1
            failureThreshold: 6
          readinessProbe:
            exec:
              command:
                - /bin/sh
                - -c
                - exec pg_isready -U "$POSTGRES_USER" -d "$POSTGRES_DB" -h 127.0.0.1 -p 5432
            initialDelaySeconds: 5
            periodSeconds: 10
            timeoutSeconds: 5
            successThreshold: 1
            failureThreshold: 6
          resources:
            {{- toYaml .Values.postgresql.resources | nindent 12 }}
          volumeMounts:
            - name: postgresql-data
              mountPath: /var/lib/postgresql/data
      volumes:
        - name: postgresql-data
          persistentVolumeClaim:
            claimName: {{ include "wordpress-website.fullname" . }}-postgresql-data
---
apiVersion: v1
kind: Service
metadata:
  name: {{ include "wordpress-website.fullname" . }}-postgresql
  labels:
    {{- include "wordpress-website.labels" . | nindent 4 }}
    app.kubernetes.io/component: database
spec:
  type: ClusterIP
  ports:
    - port: 5432
      targetPort: postgresql
      protocol: TCP
      name: postgresql
  selector:
    {{- include "wordpress-website.selectorLabels" . | nindent 4 }}
    app.kubernetes.io/component: database