apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: {{ include "instance.fullname" . }}-pg
  labels:
    {{- include "instance.labels" . | nindent 4 }}
spec:
  serviceName: {{ include "instance.fullname" . }}-pg
  replicas: 1
  selector:
    matchLabels:
      app.kubernetes.io/instance: {{ .Values.instance.code | quote }}
      odoosky.io/role: postgres
  template:
    metadata:
      labels:
        {{- include "instance.labels" . | nindent 8 }}
        odoosky.io/role: postgres
    spec:
      containers:
        - name: postgres
          image: "{{ .Values.postgres.image }}:{{ .Values.postgres.tag }}"
          imagePullPolicy: IfNotPresent
          ports:
            - name: pg
              containerPort: 5432
          envFrom:
            - secretRef:
                name: {{ include "instance.fullname" . }}-pg
          env:
            # PGDATA in a sub-dir so the mount-point itself isn't the
            # data dir — postgres refuses to init when `lost+found`
            # exists at the root of the volume.
            - name: PGDATA
              value: /var/lib/postgresql/data/pgdata
          volumeMounts:
            - name: pgdata
              mountPath: /var/lib/postgresql/data
          resources:
            {{- toYaml .Values.postgres.resources | nindent 12 }}
          readinessProbe:
            exec:
              command: ["sh", "-c", "pg_isready -U $POSTGRES_USER -d $POSTGRES_DB"]
            initialDelaySeconds: 10
            periodSeconds: 5
          livenessProbe:
            exec:
              command: ["sh", "-c", "pg_isready -U $POSTGRES_USER -d $POSTGRES_DB"]
            initialDelaySeconds: 30
            periodSeconds: 15
  volumeClaimTemplates:
    - metadata:
        name: pgdata
      spec:
        accessModes: [ReadWriteOnce]
        resources:
          requests:
            storage: {{ .Values.postgres.storage | quote }}