update: add gitea action

.gitea/workflows/build.yml

@@ -0,0 +1,48 @@
+name: Docker Build and Push
+
+on:
+  push:
+    branches:
+      - main
+      - staging
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v2
+        with:
+          registry: git.fossy.my.id
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Build and push Docker image for main
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          push: true
+          tags: |
+            git.fossy.my.id/${{ secrets.DOCKER_USERNAME }}/filekeeper:latest
+          platforms: linux/amd64,linux/arm64
+        if: github.ref == 'refs/heads/main'
+
+      - name: Build and push Docker image for staging
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          push: true
+          tags: |
+            git.fossy.my.id/${{ secrets.DOCKER_USERNAME }}/filekeeper:staging
+          platforms: linux/amd64,linux/arm64
+        if: github.ref == 'refs/heads/staging'