feat: add paperless-ngx deployment, services, and persistent volume claims

cluster/apps/paperless-ngx/paperless-ngx-db.yml

@@ -0,0 +1,28 @@
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: paperless-ngx-db
+  namespace: default
+spec:
+  selector:
+    matchLabels:
+      app: paperless-ngx-db
+  template:
+    metadata:
+      labels:
+        app: paperless-ngx-db
+    spec:
+      containers:
+      - name: paperless-ngx-db
+        image: docker.io/library/redis:7
+        ports:
+        - containerPort: 6379
+        volumeMounts:
+        - name: redis
+          mountPath: /data
+      volumes:
+      - name: redis
+        persistentVolumeClaim:
+          claimName: longhorn-paperless-redis
+