fix: Use external HTTPS endpoint with valid cert for registry

Simplify approach - use git.daviestechlabs.io external endpoint
which has valid Let's Encrypt cert. Much cleaner than fighting
with HTTP/HTTPS issues on internal endpoints.

- Remove buildkitd-config-inline (not needed for valid HTTPS)
- Remove manual config.json creation
- Use standard docker/login-action for Gitea registry

.gitea/workflows/build-push.yaml

@@ -23,9 +23,9 @@ on:
         default: 'all'
 
 env:
-  # Use internal cluster HTTP endpoint (no TLS cert issues for in-cluster runner)
-  REGISTRY: gitea-http.gitea.svc.cluster.local:3000/daviestechlabs
-  REGISTRY_HOST: gitea-http.gitea.svc.cluster.local:3000
+  # Use external HTTPS endpoint with valid Let's Encrypt cert
+  REGISTRY: git.daviestechlabs.io/daviestechlabs
+  REGISTRY_HOST: git.daviestechlabs.io
   NTFY_URL: http://ntfy.observability.svc.cluster.local:80
 
 jobs:
@@ -100,11 +100,6 @@ jobs:
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
-        with:
-          buildkitd-config-inline: |
-            [registry."gitea-http.gitea.svc.cluster.local:3000"]
-              http = true
-              insecure = true
 
       # Login to Docker Hub to avoid pull rate limits
       - name: Login to Docker Hub
@@ -114,23 +109,14 @@ jobs:
           username: ${{ vars.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
 
-      # Create docker config for buildx to use (no daemon restart needed)
-      - name: Configure registry credentials
+      # Login to Gitea registry (external HTTPS with valid cert)
+      - name: Login to Gitea Registry
         if: github.event_name != 'pull_request'
-        run: |
-          mkdir -p ~/.docker
-          echo "${{ secrets.REGISTRY_TOKEN }}" | docker --config ~/.docker login ${{ env.REGISTRY_HOST }} -u ${{ secrets.REGISTRY_USER }} --password-stdin || true
-          # Also try creating auth directly for buildx
-          AUTH=$(echo -n "${{ secrets.REGISTRY_USER }}:${{ secrets.REGISTRY_TOKEN }}" | base64)
-          cat > ~/.docker/config.json << EOF
-          {
-            "auths": {
-              "${{ env.REGISTRY_HOST }}": {
-                "auth": "$AUTH"
-              }
-            }
-          }
-          EOF
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY_HOST }}
+          username: ${{ secrets.REGISTRY_USER }}
+          password: ${{ secrets.REGISTRY_TOKEN }}
 
       - name: Extract metadata
         id: meta
@@ -165,11 +151,6 @@ jobs:
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
-        with:
-          buildkitd-config-inline: |
-            [registry."gitea-http.gitea.svc.cluster.local:3000"]
-              http = true
-              insecure = true
 
       - name: Login to Docker Hub
         if: vars.DOCKERHUB_USERNAME != ''
@@ -178,23 +159,14 @@ jobs:
           username: ${{ vars.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
 
-      # Create docker config for buildx to use (no daemon restart needed)
-      - name: Configure registry credentials
+      # Login to Gitea registry (external HTTPS with valid cert)
+      - name: Login to Gitea Registry
         if: github.event_name != 'pull_request'
-        run: |
-          mkdir -p ~/.docker
-          echo "${{ secrets.REGISTRY_TOKEN }}" | docker --config ~/.docker login ${{ env.REGISTRY_HOST }} -u ${{ secrets.REGISTRY_USER }} --password-stdin || true
-          # Also try creating auth directly for buildx
-          AUTH=$(echo -n "${{ secrets.REGISTRY_USER }}:${{ secrets.REGISTRY_TOKEN }}" | base64)
-          cat > ~/.docker/config.json << EOF
-          {
-            "auths": {
-              "${{ env.REGISTRY_HOST }}": {
-                "auth": "$AUTH"
-              }
-            }
-          }
-          EOF
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY_HOST }}
+          username: ${{ secrets.REGISTRY_USER }}
+          password: ${{ secrets.REGISTRY_TOKEN }}
 
       - name: Extract metadata
         id: meta
@@ -229,11 +201,6 @@ jobs:
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
-        with:
-          buildkitd-config-inline: |
-            [registry."gitea-http.gitea.svc.cluster.local:3000"]
-              http = true
-              insecure = true
 
       - name: Login to Docker Hub
         if: vars.DOCKERHUB_USERNAME != ''
@@ -242,23 +209,14 @@ jobs:
           username: ${{ vars.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
 
-      # Create docker config for buildx to use (no daemon restart needed)
-      - name: Configure registry credentials
+      # Login to Gitea registry (external HTTPS with valid cert)
+      - name: Login to Gitea Registry
         if: github.event_name != 'pull_request'
-        run: |
-          mkdir -p ~/.docker
-          echo "${{ secrets.REGISTRY_TOKEN }}" | docker --config ~/.docker login ${{ env.REGISTRY_HOST }} -u ${{ secrets.REGISTRY_USER }} --password-stdin || true
-          # Also try creating auth directly for buildx
-          AUTH=$(echo -n "${{ secrets.REGISTRY_USER }}:${{ secrets.REGISTRY_TOKEN }}" | base64)
-          cat > ~/.docker/config.json << EOF
-          {
-            "auths": {
-              "${{ env.REGISTRY_HOST }}": {
-                "auth": "$AUTH"
-              }
-            }
-          }
-          EOF
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY_HOST }}
+          username: ${{ secrets.REGISTRY_USER }}
+          password: ${{ secrets.REGISTRY_TOKEN }}
 
       - name: Extract metadata
         id: meta
@@ -293,11 +251,6 @@ jobs:
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
-        with:
-          buildkitd-config-inline: |
-            [registry."gitea-http.gitea.svc.cluster.local:3000"]
-              http = true
-              insecure = true
 
       - name: Login to Docker Hub
         if: vars.DOCKERHUB_USERNAME != ''
@@ -306,23 +259,14 @@ jobs:
           username: ${{ vars.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
 
-      # Create docker config for buildx to use (no daemon restart needed)
-      - name: Configure registry credentials
+      # Login to Gitea registry (external HTTPS with valid cert)
+      - name: Login to Gitea Registry
         if: github.event_name != 'pull_request'
-        run: |
-          mkdir -p ~/.docker
-          echo "${{ secrets.REGISTRY_TOKEN }}" | docker --config ~/.docker login ${{ env.REGISTRY_HOST }} -u ${{ secrets.REGISTRY_USER }} --password-stdin || true
-          # Also try creating auth directly for buildx
-          AUTH=$(echo -n "${{ secrets.REGISTRY_USER }}:${{ secrets.REGISTRY_TOKEN }}" | base64)
-          cat > ~/.docker/config.json << EOF
-          {
-            "auths": {
-              "${{ env.REGISTRY_HOST }}": {
-                "auth": "$AUTH"
-              }
-            }
-          }
-          EOF
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY_HOST }}
+          username: ${{ secrets.REGISTRY_USER }}
+          password: ${{ secrets.REGISTRY_TOKEN }}
 
       - name: Extract metadata
         id: meta