Create docker-image.yml v1

.github/workflows/docker-image.yml

@@ -0,0 +1,30 @@
+name: Docker Image CI
+
+on:
+  pull_request:
+    types: [closed]
+    branches: [ "master" ]
+
+jobs:
+
+  build:
+  
+    if: github.event.pull_request.merged == true && contains(github.event.pull_request.labels.*.name, 'CI:Build')
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+      
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v2
+
+    - name: Login to DockerHub
+      uses: docker/login-action@v2
+      with:
+        username: ${{ secrets.DOCKERHUB_USERNAME }}
+        password: ${{ secrets.DOCKERHUB_TOKEN }}
+        
+    - uses: actions/checkout@v4
+    - name: Build the Docker image
+      run: docker build . --file Dockerfile --tag geth-assignment:$(date +%s)