增加hello-world源码，并删除 drone 配置文件

.drone.yml

@@ -1,141 +0,0 @@
-kind: pipeline
-type: docker
-name: build-multiarch-docker
-
-# 匹配 Runner 标签
-node:
-  runtime: docker
-  arch: amd64
-  multiarch: true
-
-# 触发条件
-trigger:
-  include:
-    - event: push
-      branch: [main, release/*]
-    - event: tag
-
-volumes:
-  - name: docker-sock
-    host:
-      path: /var/run/docker.sock
-
-clone:
-  disable: true
-  depth: 1
-  tags: true
-
-steps:
-  - name: diagnose
-    image: docker:29.0-cli
-    volumes:
-      - name: docker-sock
-        path: /var/run/docker.sock
-    commands:
-      - apk add --no-cache curl jq 2>/dev/null || true
-      - echo "=== Docker CLI ==="; docker version
-      - echo "=== Docker Engine API ==="; curl -s --unix-socket /var/run/docker.sock http://localhost/version | jq -r '.ApiVersion'
-
-  - name: debug engine api
-    image: curlimages/curl
-    volumes:
-      - name: docker-sock
-        path: /var/run/docker.sock
-    commands:
-      - curl --unix-socket /var/run/docker.sock http://localhost/version
-
-  - name: debug docker version
-    image: docker:29.0-cli
-    environment:
-      DOCKER_API_VERSION: "1.45"
-      DOCKER_HOST: unix:///var/run/docker.sock
-    volumes:
-      - name: docker-sock
-        path: /var/run/docker.sock
-    commands:
-      - which docker
-      - docker --version
-      - docker version
-
-  # 登录容器仓库（使用 docker login）
-  - name: registry login
-    image: docker:29.0-cli  # 使用官方 Docker CLI 镜像
-    volumes:
-      - name: docker-sock
-        path: /var/run/docker.sock
-    environment:
-      REGISTRY_SERVER: "swr.cn-north-4.myhuaweicloud.com"
-      REGISTRY_USER:
-        from_secret: secrets/data/swr_username
-      REGISTRY_PASSWORD:
-        from_secret: secrets/swr_password
-    commands:
-      - |
-        echo "Logging into registry..."
-        echo "=== Debug Variables ==="
-        echo "REGISTRY_SERVER: $REGISTRY_SERVER"
-        echo "REGISTRY_USER: ${REGISTRY_USER:-empty}"
-        echo "REGISTRY_PASSWORD: ${REGISTRY_PASSWORD:-empty}"
-        echo "========================"
-        echo "$REGISTRY_PASSWORD" | docker login "$REGISTRY_SERVER" -u "$REGISTRY_USER" --password-stdin || {
-          echo "Registry login failed!"
-          exit 1
-        }
-
-  # 构建并推送镜像（使用 docker build/push）
-  - name: build and push
-    image: docker:29.0-cli
-    volumes:
-      - name: docker-sock
-        path: /var/run/docker.sock
-    environment:
-      REGISTRY_REPO: "swr.cn-north-4.myhuaweicloud.com/colovu/scratch"
-      DRONE_TAG: ${DRONE_TAG}
-      DRONE_COMMIT_SHA: ${DRONE_COMMIT_SHA}
-      DRONE_BRANCH: ${DRONE_BRANCH}
-    commands:
-      - |
-        set -euo pipefail
-        
-        if [ -n "${DRONE_TAG:-}" ]; then
-          IMAGE_TAG="$DRONE_TAG"
-        else
-          IMAGE_TAG="${DRONE_COMMIT_SHA:0:8:-unknown}"
-        fi
-        
-        echo "=== Debug Variables ==="
-        echo "DRONE_TAG: ${DRONE_TAG:-empty}"
-        echo "DRONE_COMMIT_SHA: ${DRONE_COMMIT_SHA:-empty}"
-        echo "DRONE_BRANCH: ${DRONE_BRANCH:-empty}"
-        echo "REGISTRY_REPO: ${REGISTRY_REPO:-empty}"
-        echo "IMAGE_TAG: $IMAGE_TAG"
-        echo "========================"
-        
-        echo "Building image..."
-        docker build -t "${REGISTRY_REPO}:${IMAGE_TAG}" .
-        
-        echo "Pushing image..."
-        docker push "${REGISTRY_REPO}:${IMAGE_TAG}"
-        
-        # 可选：打 latest 标签（仅 main 分支）
-        if [ "${DRONE_BRANCH}" = "main" ]; then
-          docker tag "${REGISTRY_REPO}:${IMAGE_TAG}" "${REGISTRY_REPO}:latest"
-          docker push "${REGISTRY_REPO}:latest"
-        fi
-        
-        echo "Image pushed: ${REGISTRY_REPO}:${IMAGE_TAG}"
-
-  # 清理步骤
-  - name: cleanup
-    image: docker:29.0-cli
-    volumes:
-      - name: docker-sock
-        path: /var/run/docker.sock
-    commands:
-      - |
-        echo "Logging out of registry..."
-        docker logout swr.cn-north-4.myhuaweicloud.com || true
-        echo "Cleaning up unused images..."
-        docker system prune -af || true
-    when:
-      status: [success, failure]

hello-world/main.go

@@ -0,0 +1,6 @@
+package main
+import "fmt"
+
+func main() {
+  fmt.Println("Hello from scratch!")
+}