Add migration scripts and manifests for GitLab and Gitea to Longhorn

- Create .vscode/settings.json for YAML schema validation.
- Add WISSENSBASIS.md for documentation on HomeLabScripts.
- Implement migration job for GitLab from NFS to Longhorn with migrate-to-longhorn.yaml and migrate-to-longhorn.sh.
- Add Gitea migration scripts and manifests for PostgreSQL to Longhorn.
- Create persistent volume claims and deployments for Gitea and Homarr.
- Set up namespaces and services for Homarr and Speedtest Tracker.
- Add secrets for Homarr and Speedtest Tracker with sensitive data.
- Configure Ingress for Speedtest Tracker with Traefik annotations.

Co-authored-by: Copilot <copilot@github.com>

k3s/apps/gitLab/manifest/gitlab-deployment.yaml

@@ -99,7 +99,7 @@ spec:
       volumes:
         - name: gitlab-data        # lokal (postgresql, redis, etc.)
           persistentVolumeClaim:
-            claimName: gitlab-data-pvc
+            claimName: gitlab-data-longhorn-pvc
 
         - name: gitlab-git         # NFS (Git-Repositories)
           persistentVolumeClaim:
@@ -107,7 +107,7 @@ spec:
 
         - name: gitlab-config      # lokal
           persistentVolumeClaim:
-            claimName: gitlab-config-pvc
+            claimName: gitlab-config-longhorn-pvc
 
         - name: gitlab-logs        # ephemeral
           emptyDir: {}

k3s/apps/gitLab/manifest/migrate-to-longhorn.yaml

@@ -0,0 +1,48 @@
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: gitlab-migrate-to-longhorn
+  namespace: gitlab
+spec:
+  backoffLimit: 4
+  template:
+    metadata:
+      name: gitlab-migrate-to-longhorn
+    spec:
+      restartPolicy: Never
+      containers:
+        - name: migrate
+          image: alpine:3.18
+          command:
+            - sh
+            - -c
+            - |
+              set -euo pipefail
+              apk add --no-cache rsync
+              echo "Starting migration: /var/opt/gitlab (data)"
+              rsync -aHAX --numeric-ids --delete /var/opt_gitlab_old/ /var/opt_gitlab_new/
+              echo "Finished data copy. Starting config copy: /etc/gitlab"
+              rsync -aHAX --numeric-ids --delete /etc_gitlab_old/ /etc_gitlab_new/
+              echo "Migration complete"
+          volumeMounts:
+            - name: old-data
+              mountPath: /var/opt_gitlab_old
+            - name: new-data
+              mountPath: /var/opt_gitlab_new
+            - name: old-config
+              mountPath: /etc_gitlab_old
+            - name: new-config
+              mountPath: /etc_gitlab_new
+      volumes:
+        - name: old-data
+          persistentVolumeClaim:
+            claimName: gitlab-data-pvc
+        - name: new-data
+          persistentVolumeClaim:
+            claimName: gitlab-data-longhorn-pvc
+        - name: old-config
+          persistentVolumeClaim:
+            claimName: gitlab-config-pvc
+        - name: new-config
+          persistentVolumeClaim:
+            claimName: gitlab-config-longhorn-pvc

k3s/apps/gitLab/manifest/pv-pvc.yaml

@@ -96,3 +96,32 @@ spec:
     requests:
       storage: 1Gi
   volumeName: gitlab-config-pv
+
+---
+# ─── Neue Longhorn-PVCs zum Migrieren der Daten (dynamisch provisioniert) ─
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: gitlab-data-longhorn-pvc
+  namespace: gitlab
+spec:
+  accessModes:
+    - ReadWriteOnce
+  storageClassName: longhorn
+  resources:
+    requests:
+      storage: 20Gi
+
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: gitlab-config-longhorn-pvc
+  namespace: gitlab
+spec:
+  accessModes:
+    - ReadWriteOnce
+  storageClassName: longhorn
+  resources:
+    requests:
+      storage: 1Gi