Added CI workflow for Dockerized k8s Operator

.gitea/workflows/devstar-devcontainer-operator-ci.yaml

@@ -0,0 +1,54 @@
+#
+# Add secrets of Remote Git Repository Panel:
+#   - ${{ secrets.DOCKER_REGISTRY_USERNAME }}: username of Docker Registry
+#   - ${{ secrets.DOCKER_REGISTRY_PASSWORD }}: password corresponding to the Docker Registry username
+
+# Add variables of Remote Git Repository Panel:
+#   - ${{ vars.DOCKER_REGISTRY_ADDRESS }}:     the address for Docker Registry
+#   - ${{ vars.DOCKER_REPOSITORY_ARTIFACT}}:   the artifact $name:$version, e.g., `devstar/devcontainer-operator:build`
+
+# 特别注意：如果使用 devstar.cn 作为 Docker Registry，需要设置 Gitea Actions Runner 变量 DOCKER_REGISTRY_ADDRESS = www.devstar.cn，若没有www前缀会导致上传失败（Ingress重定向规则导致，暂时无解）
+#  上传 Artifact 必须加上 www前缀，而拉取时不需要加 www 前缀，例如：
+#    上传前 artifact 名称： docker push  www.devstar.cn/devstar/devcontainer-operator:build-0047d315a3f73cca0c18c641d24b0347456618d5
+#    拉取 artifact 只需要： docker pull      devstar.cn/devstar/devcontainer-operator:build-0047d315a3f73cca0c18c641d24b0347456618d5
+
+name: DevStar DevContainer Operator CI Pipeline - main branch
+on:
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  build-and-push-x86-64-docker-image:
+    runs-on: ubuntu-latest
+    steps:
+      - name: 🔍 Check out repository code
+        uses: actions/checkout@v4
+        with:
+          ref: main
+      - name: 🔧 Build an Artifact
+        run: |
+          echo "${{ secrets.DOCKER_REGISTRY_PASSWORD }}" | docker login -u ${{ secrets.DOCKER_REGISTRY_USERNAME }} ${{ vars.DOCKER_REGISTRY_ADDRESS }} --password-stdin
+          make docker-build docker-push IMG=${{ vars.DOCKER_REGISTRY_ADDRESS }}/${{ vars.DOCKER_REPOSITORY_ARTIFACT }}-${{ gitea.sha }}
+      - name: 🍏 Job Status Report
+        run: |
+          echo "🍏 This job's status is ${{ job.status }}."
+          echo "Output Artifact: ${{ vars.DOCKER_REGISTRY_ADDRESS }}/${{ vars.DOCKER_REPOSITORY_ARTIFACT }}-${{ gitea.sha }}"
+
+
+#
+# P.S.:
+################################################################################
+# 1. How to config runner:
+#  $ docker run \
+#      --name gitea-act-runner-repo-devcontainer-operator \
+#      -d \
+#      -e GITEA_INSTANCE_URL=https://www.devstar.cn \
+#      -e GITEA_RUNNER_REGISTRATION_TOKEN=${YOUR_GITEA_RUNNER_REGISTRATION_TOKEN} \
+#      -v /var/run/docker.sock:/var/run/docker.sock \
+#      gitea/act_runner:latest
+#
+# 2. To clean the docker cache:
+#  $  docker builder prune --force
+#  $  if [ "$(docker volume ls -qf dangling=true)" ]; then docker volume rm $(docker volume ls -qf dangling=true); fi
+#