ci: replace buildx with docker CLI directly

.gitea/workflows/build.yaml

@@ -9,53 +9,40 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
+    env:
+      DOCKER_HOST: tcp://172.17.0.1:2375
     steps:
       - uses: actions/checkout@v4
 
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+      - name: Install Docker CLI
+        run: |
+          apt-get update -qq
+          apt-get install -y -qq docker.io
+          docker version
 
       - name: Log in to Gitea Container Registry
-        uses: docker/login-action@v3
-        with:
-          registry: ${{ gitea.server_url }}
-          username: ${{ secrets.GITEA_USER }}
-          password: ${{ secrets.GITEA_TOKEN }}
-
-      - name: Extract metadata
-        id: meta
-        uses: docker/metadata-action@v5
-        with:
-          images: ${{ gitea.server_url }}/${{ gitea.repository }}
-          tags: |
-            type=sha,format=long
-            type=ref,event=branch
+        run: |
+          echo "${{ secrets.GITEA_TOKEN }}" | docker login ${{ gitea.server_url }} -u ${{ secrets.GITEA_USER }} --password-stdin
 
       - name: Build and push
-        uses: docker/build-push-action@v6
-        with:
-          context: .
-          push: true
-          tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}
-          cache-from: type=gha
-          cache-to: type=gha,mode=max
+        run: |
+          SHA=$(git rev-parse --short HEAD)
+          IMAGE="${{ gitea.server_url }}/${{ gitea.repository }}"
+          docker build -t "${IMAGE}:sha-${SHA}" -t "${IMAGE}:latest" .
+          docker push "${IMAGE}:sha-${SHA}"
+          docker push "${IMAGE}:latest"
 
       - name: Update k8s manifest in admin/apps
         env:
           GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
-          IMAGE_TAG: ${{ steps.meta.outputs.tags }}
         run: |
-          SHA=$(echo "$IMAGE_TAG" | grep -oE 'sha-[a-f0-9]+' | head -1)
-          if [ -z "$SHA" ]; then SHA=$(echo "$IMAGE_TAG" | grep -oE 'main-[a-f0-9]+' | head -1); fi
-          if [ -z "$SHA" ]; then echo "No SHA tag found"; exit 1; fi
-
+          SHA=$(git rev-parse --short HEAD)
           git clone "https://admin:${GITEA_TOKEN}@git.kubebase.de/admin/apps.git" /tmp/apps
           cd /tmp/apps
-          cd apps/toolrate/overlays/k3s
+          cd apps/system/toolrate/overlays/k3s
           sed -i "s|newTag: .*|newTag: ${SHA}|" kustomization.yaml
           git config user.name "Gitea Actions"
           git config user.email "actions@git.kubebase.de"
           git add -A
-          git diff --cached --quiet || git commit -m "chore: update toolrate image to ${SHA}"
+          git diff --cached --quiet || git commit -m "chore: update toolrate image to sha-${SHA}"
           git push