{{- if .Values.postgres.enabled }}
apiVersion: v1
kind: Service
metadata:
  name: {{ include "lab.postgresHost" . }}
  namespace: {{ include "lab.namespace" . }}
  labels:
    {{- include "lab.labels" . | nindent 4 }}
    app.kubernetes.io/component: postgres
spec:
  type: ClusterIP
  ports:
    - name: postgres
      port: 5432
      targetPort: postgres
      protocol: TCP
  selector:
    {{- include "lab.selectorLabels" . | nindent 4 }}
    app.kubernetes.io/component: postgres
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: {{ include "lab.postgresHost" . }}
  namespace: {{ include "lab.namespace" . }}
  labels:
    {{- include "lab.labels" . | nindent 4 }}
    app.kubernetes.io/component: postgres
spec:
  serviceName: {{ include "lab.postgresHost" . }}
  replicas: 1
  selector:
    matchLabels:
      {{- include "lab.selectorLabels" . | nindent 6 }}
      app.kubernetes.io/component: postgres
  template:
    metadata:
      labels:
        {{- include "lab.selectorLabels" . | nindent 8 }}
        app.kubernetes.io/component: postgres
    spec:
      {{- with .Values.imagePullSecrets }}
      imagePullSecrets:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      containers:
        - name: postgres
          image: "{{ .Values.postgres.image.repository }}:{{ .Values.postgres.image.tag }}"
          imagePullPolicy: {{ .Values.postgres.image.pullPolicy }}
          ports:
            - name: postgres
              containerPort: 5432
              protocol: TCP
          env:
            - name: POSTGRES_USER
              value: {{ .Values.postgres.auth.username | quote }}
            - name: POSTGRES_DB
              value: {{ .Values.postgres.auth.database | quote }}
            - name: POSTGRES_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: {{ include "lab.fullname" . }}
                  key: postgres-password
            - name: PGDATA
              value: /var/lib/postgresql/data/pgdata
          volumeMounts:
            - name: data
              mountPath: /var/lib/postgresql/data
            - name: init
              mountPath: /docker-entrypoint-initdb.d
              readOnly: true
          readinessProbe:
            exec:
              command: ["pg_isready", "-U", {{ .Values.postgres.auth.username | quote }}, "-d", {{ .Values.postgres.auth.database | quote }}]
            initialDelaySeconds: 5
            periodSeconds: 5
            timeoutSeconds: 3
            failureThreshold: 12
          livenessProbe:
            exec:
              command: ["pg_isready", "-U", {{ .Values.postgres.auth.username | quote }}, "-d", {{ .Values.postgres.auth.database | quote }}]
            initialDelaySeconds: 15
            periodSeconds: 10
            timeoutSeconds: 3
          {{- with .Values.postgres.resources }}
          resources:
            {{- toYaml . | nindent 12 }}
          {{- end }}
      volumes:
        - name: init
          configMap:
            name: {{ include "lab.fullname" . }}-postgres-init
        {{- if not .Values.postgres.persistence.enabled }}
        - name: data
          emptyDir: {}
        {{- end }}
  {{- if .Values.postgres.persistence.enabled }}
  volumeClaimTemplates:
    - metadata:
        name: data
      spec:
        accessModes: ["ReadWriteOnce"]
        {{- if .Values.postgres.persistence.storageClass }}
        storageClassName: {{ .Values.postgres.persistence.storageClass | quote }}
        {{- end }}
        resources:
          requests:
            storage: {{ .Values.postgres.persistence.size }}
  {{- end }}
{{- end }}