Use Gitea actions instead of woodpecker

.gitea/workflows/build.yaml

@@ -0,0 +1,80 @@
+name: Build & Publish Backend
+on: 
+  push:
+    paths: 
+      - "backend/**"
+      - "frontend/**"
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out the repo
+        uses: actions/checkout@v3
+
+      - name: Check changed directories
+        uses: https://github.com/dorny/paths-filter@v2
+        id: changes
+        with:
+           filters: |
+              backend:
+                - 'backend/**'
+              frontend:
+                - 'frontend/**'
+
+      # Frontend
+      - name: "[Frontend] Docker meta"
+        if: steps.changes.outputs.frontend == 'true'
+        id: frontend-meta
+        uses: https://github.com/docker/metadata-action@v4
+        with:
+          images: git.flokaiser.com/dhbw/cloud-computing-frontend
+          tags: |
+             type=sha,enable=true,priority=100,prefix={{branch}}-,suffix=,format=short
+             type=raw,value=latest,enable={{is_default_branch}}
+
+      # Backend
+      - name: "[Backend] Docker meta"
+        if: steps.changes.outputs.backend == 'true'
+        id: backend-meta
+        uses: https://github.com/docker/metadata-action@v4
+        with:
+          images: git.flokaiser.com/dhbw/cloud-computing-backend
+          tags: |
+             type=sha,enable=true,priority=100,prefix={{branch}}-,suffix=,format=short
+             type=raw,value=latest,enable={{is_default_branch}}
+
+      - name: Get get-docker.sh
+        run: curl -fsSL https://get.docker.com -o get-docker.sh
+
+      - name: Install docker
+        run: sh get-docker.sh
+        
+      - name: Login to Registry
+        uses: docker/login-action@v2
+        with:
+          registry: git.flokaiser.com
+          username: ${{ secrets.REGISTRY_USERNAME }}
+          password: ${{ secrets.REGISTRY_TOKEN }}
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      # Frontend
+      - name: "[Frontend] Build and push"
+        if: steps.changes.outputs.frontend == 'true'
+        uses: docker/build-push-action@v4
+        with:
+          file: frontend/Dockerfile
+          platforms: linux/amd64
+          push: true
+          tags: ${{ steps.frontend-meta.outputs.tags }}
+
+      # Backend
+      - name: "[Backend] Build and push"
+        if: steps.changes.outputs.backend == 'true'
+        uses: docker/build-push-action@v4
+        with:
+          file: backend/Dockerfile
+          platforms: linux/amd64
+          push: true
+          tags: ${{ steps.backend-meta.outputs.tags }}