Update miniflux to use cnpg

Can't use cockroachdb because of lack of `setweight`.
See: cockroachdb/cockroach#41288

k8s/miniflux-ai/deployment.yaml

@@ -5,7 +5,7 @@ metadata:
   labels:
     app: miniflux-ai
 spec:
-  replicas: 1
+  replicas: 0
   selector:
     matchLabels:
       app: miniflux-ai

k8s/miniflux/backup.yaml

@@ -3,6 +3,7 @@ kind: CronJob
 metadata:
   name: miniflux-backup
 spec:
+  suspend: true
   schedule: "0 22 * * *"
   concurrencyPolicy: Forbid
   jobTemplate:

k8s/miniflux/database.yaml

@@ -1,25 +1,12 @@
-apiVersion: crdb.cockroachlabs.com/v1alpha1
-kind: CrdbCluster
+apiVersion: postgresql.cnpg.io/v1
+kind: Cluster
 metadata:
-  name: cockroachdb
+  name: miniflux-cluster
 spec:
-  dataStore:
-    pvc:
-      spec:
-        accessModes:
-          - ReadWriteOnce
-        resources:
-          requests:
-            storage: "8Gi"
-        volumeMode: Filesystem
-  resources:
-    requests:
-      cpu: 100m
-      memory: 512Mi
-    limits:
-      cpu: 500m
-      memory: 1Gi
-  tlsEnabled: true
-  image:
-    name: cockroachdb/cockroach:v24.2.5
-  nodes: 3
+  instances: 3
+  bootstrap:
+    initdb:
+      database: miniflux
+      owner: miniflux
+  storage:
+    size: 8Gi

k8s/miniflux/deployment.yaml

@@ -5,7 +5,7 @@ metadata:
   labels:
     app: miniflux
 spec:
-  replicas: 2
+  replicas: 0
   selector:
     matchLabels:
       app: miniflux
@@ -27,8 +27,8 @@ spec:
             - name: DATABASE_URL
               valueFrom:
                 secretKeyRef:
-                  key: databaseUrl
-                  name: miniflux-secret
+                  key: uri
+                  name: miniflux-cluster-app
             # - name: RUN_MIGRATIONS
             #   value: "1"
             # - name: CREATE_ADMIN
@@ -72,32 +72,7 @@ spec:
             periodSeconds: 30
             timeoutSeconds: 5
             failureThreshold: 3
-          volumeMounts:
-            - mountPath: /cockroach/cockroach-certs/
-              name: client-certs
-      securityContext:
-        runAsUser: 1000
-        runAsGroup: 1000
-        fsGroup: 1000
       restartPolicy: Always
-      serviceAccountName: cockroachdb-sa
-      volumes:
-        - name: client-certs
-          projected:
-            sources:
-              - secret:
-                  name: cockroachdb-node
-                  items:
-                    - key: ca.crt
-                      path: ca.crt
-              - secret:
-                  name: cockroachdb-root
-                  items:
-                    - key: tls.crt
-                      path: client.root.crt
-                    - key: tls.key
-                      path: client.root.key
-            defaultMode: 0640
       topologySpreadConstraints:
         - maxSkew: 1
           topologyKey: kubernetes.io/hostname