Kubernetes: added multiple microservices

- added minio object storage
- added immich photo viewer
- added cloudnative-pg postgres operator for db management
- added cronjobs to run different maintenance tasks
- updated readme

kubernetes/longhorn/longhorn-storageclass-2-replica.yaml

@@ -0,0 +1,11 @@
+# longhorn-3x.yaml (High Availability)
+apiVersion: storage.k8s.io/v1
+kind: StorageClass
+metadata:
+  name: longhorn-2x
+provisioner: driver.longhorn.io
+parameters:
+  numberOfReplicas: "2"
+  staleReplicaTimeout: "2880" # 48 hours in minutes (optional)
+  fsType: "ext4"
+allowVolumeExpansion: true