# PostgreSQL 18 with pgvector for Discourse. Runs alongside the old Bitnami
# PostgreSQL 17 StatefulSet, whose volume stays untouched for rollback.
apiVersion: v1
kind: Service
metadata:
  name: discourse-postgres18
  namespace: discourse
  labels:
    app.kubernetes.io/name: discourse-postgres18
spec:
  clusterIP: None
  selector:
    app.kubernetes.io/name: discourse-postgres18
  ports:
    - name: postgresql
      port: 5432
      targetPort: postgresql
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: discourse-postgres18
  namespace: discourse
  labels:
    app.kubernetes.io/name: discourse-postgres18
spec:
  serviceName: discourse-postgres18
  replicas: 1
  selector:
    matchLabels:
      app.kubernetes.io/name: discourse-postgres18
  template:
    metadata:
      labels:
        app.kubernetes.io/name: discourse-postgres18
    spec:
      containers:
        - name: postgresql
          image: pgvector/pgvector:pg18
          ports:
            - name: postgresql
              containerPort: 5432
          env:
            - name: POSTGRES_USER
              value: postgres
            - name: POSTGRES_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: discourse-postgresql
                  key: postgres-password
          readinessProbe:
            exec:
              command: ["pg_isready", "-U", "postgres", "-h", "127.0.0.1"]
            periodSeconds: 10
            failureThreshold: 6
          livenessProbe:
            exec:
              command: ["pg_isready", "-U", "postgres", "-h", "127.0.0.1"]
            initialDelaySeconds: 60
            periodSeconds: 10
            failureThreshold: 6
          volumeMounts:
            - name: data
              mountPath: /var/lib/postgresql
  volumeClaimTemplates:
    - metadata:
        name: data
      spec:
        accessModes: ["ReadWriteOnce"]
        storageClassName: nfs-client
        resources:
          requests:
            storage: 2Ti