REFACTOR(longhorn): change Longhorn namespace

- Change from longhorn-system to longhorn
- Standardize namespace naming

longhorn/argocd.yaml

@@ -23,7 +23,7 @@ spec:
     kustomize: {}
   destination:
     server: https://kubernetes.default.svc
-    namespace: longhorn-system
+    namespace: longhorn
   syncPolicy:
     automated:
       prune: true

longhorn/ingress.yaml

@@ -2,7 +2,7 @@ apiVersion: networking.k8s.io/v1
 kind: Ingress
 metadata:
   name: longhorn-ingress
-  namespace: longhorn-system
+  namespace: longhorn
   annotations:
     cert-manager.io/cluster-issuer: letsencrypt-prod
 spec:

longhorn/kustomization.yaml

@@ -1,6 +1,6 @@
 apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
-namespace: longhorn-system
+namespace: longhorn
 resources:
 - ingress.yaml
 - nodes/mayne-vcn.yaml

longhorn/nodes/mayne-vcn.yaml

@@ -2,7 +2,7 @@ apiVersion: longhorn.io/v1beta2
 kind: Node
 metadata:
   name: mayne-vcn
-  namespace: longhorn-system
+  namespace: longhorn
 spec:
   disks:
     default-disk:

longhorn/nodes/mayne-worker-1.yaml

@@ -2,7 +2,7 @@ apiVersion: longhorn.io/v1beta2
 kind: Node
 metadata:
   name: mayne-worker-1
-  namespace: longhorn-system
+  namespace: longhorn
 spec:
   disks:
     default-disk:

longhorn/nodes/mayne-worker-2.yaml

@@ -2,7 +2,7 @@ apiVersion: longhorn.io/v1beta2
 kind: Node
 metadata:
   name: mayne-worker-2
-  namespace: longhorn-system
+  namespace: longhorn
 spec:
   disks:
     default-disk: