Test docker build

.github/workflows/docker-build.yml

@@ -0,0 +1,35 @@
+name: Docker build and push
+
+on:
+  push:
+    branches:
+      - docker-compose
+
+jobs:
+  docker-build-push:
+    name: Build docker
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read
+      packages: write
+      pull-requests: write
+
+    steps:
+    - name: Log in to GitHub Container Registry
+      uses: docker/login-action@v2
+      with:
+        registry: ghcr.io
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}
+
+    - name: Checkout
+      uses: actions/checkout@v1
+
+    - name: Build Docker image
+      run: |
+        make docker_build_aggregator
+
+    - name: Push Docker image
+      run: |
+        docker push ghcr.io/lambdaclass/aligned_layer/aggregator:v0.8.0