paperless-ngx: Split resources into separate files

The Paperless-ngx ecosystem consists of several services.  Defining the
resources for each service in separate manifest files will make
maintenance a little bit easier.

paperless-ngx/kustomization.yaml

@@ -1,10 +1,31 @@
 apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 
+namespace: paperless-ngx
+
+labels:
+- pairs:
+    app.kubernetes.io/instance: paperless-ngx
+
 resources:
+- namespace.yaml
+- redis.yaml
+- gotenberg.yaml
+- tika.yaml
 - paperless-ngx.yaml
 - ingress.yaml
 
+configMapGenerator:
+- name: paperless-cmd
+  files:
+  - paperless_cmd.sh
+  options:
+    labels:
+      app.kubernetes.io/name: paperless_cmd.sh
+      app.kubernetes.io/component: paperless-ngx
+      app.kubernetes.io/part-of: paperless-ngx
+    disableNameSuffixHash: true
+
 patches:
 - target:
     kind: StatefulSet