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post-merge

部署与运维

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更新于 10-15 12:50

技能介绍

用途

post-merge 是自主部署流水线的第 1 阶段(Stage 1)。它在 PR 合并之后运行:读取 diff,判断部署是自动还是手动,必要时执行手动部署,然后派发一个 deployment-checker 任务,轮询直到服务上线。

触发方式

  • 自动:当 PR 合并到默认分支时,由 event-rules 自动触发。
  • 手动:/post-merge PR_NUMBER org/repo

调用示例:

/post-merge 42 fellowship-dev/pylot

参数:

PR_NUMBER=$1    # PR number
REPO=$2         # org/repo

运行步骤(Runbook)

Step 0:去重门(Dedup Gate)

检查是否已为该 PR 派发过 deployment-checker 任务,若已存在则直接以成功状态退出:

PR=$1
REPO=$2

# Check if deployment-checker job already dispatched for this PR
EXISTING=$(ls ${PYLOT_DISPATCH_DIR:-$HOME/.local/share/pylot/missions}/pending/ \
  ${PYLOT_DISPATCH_DIR:-$HOME/.local/share/pylot/missions}/running/ 2>/dev/null \
  | grep "deploy-check-${PR}-" || true)
if [ -n "$EXISTING" ]; then
  echo "[post-merge] outcome=\"already dispatched — deploy-checker job exists\" status=success"
  exit 0
fi

Step 1:收集 PR 上下文

获取 PR 元数据(编号、标题、合并时间、基础分支、头分支、变更文件、URL、合并提交):

# Fetch PR metadata
PR_DATA=$(gh pr view $PR --repo $REPO --json number,title,mergedAt,baseRefName,headRefName,files,url,mergeCommit)
PR_TITLE=$(echo "$PR_DATA" | python3 -c "import json,sys; d=json.load(sys.stdin); print(d['title'])")
PR_SHA=$(echo "$PR_DATA" | python3 -c "import json,sys; d=json.load(sys.stdin); print(d.get('mergeCommit',{}).get('oid','') or '')" 2>/dev/null || true)
CHANGED_FILES=$(echo "$PR_DATA" | python3 -c "import json,sys; d=json.load(sys.stdin); print('\n'.join(f['path'] for f in d['files']))")
BASE_BRANCH=$(echo "$PR_DATA" | python3 -c "import json,sys; d=json.load(sys.stdin); print(d['baseRefName'])")

echo "PR: $PR — $PR_TITLE"
echo "SHA: $PR_SHA"
echo "Base: $BASE_BRANCH"
echo "Files changed:"
echo "$CHANGED_FILES"

Step 2:读取团队部署配置

读取团队的 CLAUDE.md,确定该仓库配置的部署方式。查找 deploy: 段:

# Example in crew/infra/CLAUDE.md or team CLAUDE.md:
deploy:
  method: auto-pull          # auto-pull | github-actions | manual
  health_url: "http://localhost:1337/_health"
  timeout_minutes: 5
  checker_script: "scripts/deployment-checker-pylot.sh"
  expected_sha_field: "sha"  # JSON field in health response containing deployed sha

部署方式决策树:

Method Action
auto-pull 部署是自动的。跳过 Step 3 和 Step 4(auto-deploy.sh 负责 deploy-check)。
github-actions 部署由合并触发。等待约 2 分钟,然后执行 Step 4。
manual CTO 现在运行部署命令(Step 3),然后执行 Step 4。

如果未找到 deploy 配置,发出警告并退出——不要猜测。

Step 3:手动部署(当 method = manual 时)

仅在 method: manual 时执行。从团队配置中读取部署命令:

# Example: manual deploy for a Fly.io app
cd /path/to/repo && fly deploy --remote-only

# Example: manual ECR push
aws ecr get-login-password | docker login --username AWS --password-stdin $ECR_URI
docker build -t $IMAGE . && docker push $IMAGE

记录所执行的命令及其输出。

Step 4:派发 deployment-checker 任务

如果 method: auto-pull,跳过此步骤。auto-pull 仓库的 deploy-check 由 auto-deploy.sh 在执行器重启后派发——在此处派发会造成先有鸡还是先有蛋的死锁(deploy-checker 阻塞队列,而队列又阻塞了它正在等待的部署)。

对于其他部署方式(github-actions、manual),派发一个新任务:

if [ "$DEPLOY_METHOD" != "auto-pull" ]; then
  PYLOT_DIR="${PYLOT_DIR:-$HOME/projects/fellowship-dev/pylot}"
  curl -sS -X POST \
    -H "Authorization: Bearer $(grep '^PYLOT_DISPATCH_TOKEN=' $HOME/projects/fellowship-dev/claude-buddy/.env | cut -d= -f2)" \
    -H "Content-Type: application/json" \
    -d "$(python3 -c "import json; print(json.dumps({'agent':'${TEAM}.intern','task':'Check deployment for $REPO#$PR — $PR_TITLE','repo':'$REPO','context':'SHA: $PR_SHA. Health URL: $HEALTH_URL. Timeout: ${TIMEOUT_MINUTES:-5} minutes. Checker script: ${CHECKER_SCRIPT}. Run /deployment-checker $PR $REPO.'}))")" \
    "http://127.0.0.1:3000/dispatch"
else
  echo "[post-merge] Skipping deploy-check dispatch — auto-pull deploys are checked by auto-deploy.sh"
fi

Step 5:在 PR 上留言

gh pr comment $PR --repo $REPO --body "$(cat <<'EOF'
**Post-merge pipeline started** 🚀

| Field | Value |
|-------|-------|
| Deploy method | \`$DEPLOY_METHOD\` |
| Health endpoint | \`$HEALTH_URL\` |
| Timeout | ${TIMEOUT_MINUTES:-5} min |
| Expected SHA | \`${PR_SHA:-unknown}\` |

Deployment checker dispatched. Will apply \`deployed\` or \`deploy-failed\` label when complete.
EOF
)"

Step 6:写报告

PYLOT_DIR="${PYLOT_DIR:-$HOME/projects/fellowship-dev/pylot}"
REPORT="$PYLOT_DIR/reports/$(date +%Y-%m-%d)-post-merge-$(echo $REPO | tr '/' '-')-pr${PR}.md"
cat > "$REPORT" <<EOF
# Post-Merge: $REPO PR #$PR — $PR_TITLE

**Date**: $(date +%Y-%m-%d)
**PR**: [$REPO#$PR]($PR_URL)
**SHA**: $PR_SHA
**Deploy method**: $DEPLOY_METHOD
**Deploy-checker job**: dispatched

## Changed Files
$CHANGED_FILES

## Outcome
Deploy-checker dispatched. Awaiting health confirmation.
EOF

团队配置参考

每个团队的 CLAUDE.md 应包含 deploy: 段。通用示例:

Pylot(auto-pull):

deploy:
  method: auto-pull
  health_url: "http://localhost:1337/_health"
  timeout_minutes: 5
  checker_script: "scripts/deployment-checker-pylot.sh"
  expected_sha_field: "sha"

Lexgo(GitHub Actions → Fly.io):

deploy:
  method: github-actions
  health_url: "https://api.lexgo.cl/_health"
  timeout_minutes: 30
  checker_script: "scripts/deployment-checker-lexgo.sh"

Booster-pack(branch-push → Fly + Vercel):

deploy:
  method: auto-pull
  health_url: "https://api.booster-pack.dev/health"
  timeout_minutes: 10

注意事项

  • 没有团队配置 = 不执行任何操作。不要猜测部署方式——缺少配置是应当去配置的信号。
  • SHA 比较是尽力而为。如果健康端点未暴露 sha 字段,则回退到时间戳比较。
  • post-merge 按 PR 触发。每个合并的 PR 都有自己的 deploy-checker 任务。
  • Monorepo:如果仓库有多个部署目标(例如后端 + 前端),每个目标派发一个 checker。checker_script 决定轮询哪个目标。