docker build and push workflow

.forgejo/workflows/docker-push.yml

@@ -4,8 +4,28 @@ on:
       - main
 
 jobs:
-  do-nothing:
+  build-and-push:
     runs-on: docker
+
     steps:
-      - name: "Test"
-        run: echo "This action is for testing."
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to codeberg
+        uses: docker/login-action@v3
+        with:
+          registry: codeberg.org
+          username: aiquiral
+          password: ${{ secrets.PASS }}
+
+      - name: Build and push image
+        id: build
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: true
+          tags: retropulse:latest
+          platforms: linux/amd64