add CI file

.github/workflow/main.yml

@@ -0,0 +1,55 @@
+name: CI Build and Upload
+
+on:
+  pull_request:
+    types:
+      - closed
+
+jobs:
+  build-and-upload:
+    runs-on: self-hosted
+
+    steps:
+        - name: Check PR label
+          id: check_label
+          uses: actions/labeler@v2
+          with:
+            action: contains
+            label: CI:TriggerBuild
+
+        - name: Tag with Branch
+          id: image_tag
+          run: echo "BRANCH=${GITHUB_REF##*/}" >> $GITHUB_ENV
+
+        - name: Check repository
+          id: check_repo
+          run: echo "::set-output name=repo::${{ github.event.pull_request.base.repo.name }}"
+
+        - name: Set up Docker Buildx
+          id: buildx
+          uses: docker/setup-buildx-action@v1
+
+        - name: Checkout code
+          uses: actions/checkout@v2
+
+        - name: Build Docker image
+          id: build-image
+          run: |
+              docker buildx build -t my-golang-app .
+
+        - name: Login to DockerHub
+          uses: docker/login-action@v1
+          with:
+            username: ${{ secrets.DOCKERHUB_USERNAME }}
+            password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+        - name: Build and push
+          uses: docker/build-push-action@v2
+          with:
+            context: .
+            file: ./Dockerfile
+            platforms: linux/amd64,linux/arm64,linux/386
+            push: true
+            tags: ${{ secrets.DOCKERHUB_USERNAME }}/go-ethereum:${{ env.BRANCH }}
+            build-args: |
+              BRANCH=${{ env.BRANCH }}