fix: resolve kustomize namespace conflict for gooseek-sandbox

- Extracted gooseek-sandbox Namespace to separate file
- Apply sandbox-namespace.yaml separately before kustomize
- Fixed deprecated commonLabels -> labels
- Prevents namespace transformation conflict

Made-with: Cursor

.gitea/workflows/deploy.yaml

@@ -52,6 +52,9 @@ jobs:
           export KUBECONFIG=/etc/rancher/k3s/k3s.yaml
           cd /opt/gitea-runner/workspace/gooseek/backend/deploy/k8s
           
+          # Apply sandbox namespace separately (not managed by kustomize)
+          kubectl apply -f sandbox-namespace.yaml
+          
           kubectl apply -k .
           
           kubectl -n gooseek rollout restart deployment/api-gateway || true

backend/deploy/k8s/kustomization.yaml

@@ -26,9 +26,11 @@ resources:
   - opensandbox.yaml
   - ingress.yaml
 
-commonLabels:
-  app.kubernetes.io/part-of: gooseek
-  app.kubernetes.io/managed-by: kustomize
+labels:
+  - pairs:
+      app.kubernetes.io/part-of: gooseek
+      app.kubernetes.io/managed-by: kustomize
+    includeSelectors: false
 
 images:
   - name: gooseek/backend

backend/deploy/k8s/opensandbox.yaml

@@ -1,12 +1,4 @@
 apiVersion: v1
-kind: Namespace
-metadata:
-  name: gooseek-sandbox
-  labels:
-    app.kubernetes.io/part-of: gooseek
-    purpose: user-sandboxes
----
-apiVersion: v1
 kind: ServiceAccount
 metadata:
   name: opensandbox-sa

backend/deploy/k8s/sandbox-namespace.yaml

@@ -0,0 +1,7 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: gooseek-sandbox
+  labels:
+    app.kubernetes.io/part-of: gooseek
+    purpose: user-sandboxes