add build workflows

.gitea/workflows/build.yaml

@@ -0,0 +1,28 @@
+name: Main CI/CD
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build-and-push:
+    name: Build and push
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - uses: docker/login-action@v1
+        with:
+          registry: registry.btwazure.com
+          username: ${{ secrets.HARBOR_USERNAME  }}
+          password: ${{ secrets.HARBOR_PASSWORD }}
+      - name: Build & Push
+        env:
+          REGISTRY: ${{ secrets.REGISTRY }}
+          IMAGE_TAG: ${{gitea.sha}}
+        run: |
+          docker build --pull --no-cache=true --tag $REGISTRY --tag $REGISTRY:$IMAGE_TAG  .
+          docker push $REGISTRY
+          docker push $REGISTRY:$IMAGE_TAG
+          docker rmi $(docker images -q $REGISTRY:$IMAGE_TAG) -f