---
title: Docker开发镜像Nest热重载需安装procps
type: experience
permalink: main/projects/d44c219a-0b31-4de1-b160-323eb34a4c6a/docker-开发镜像-nest-热重载需安装-procps
stable_id: da7a2613-9076-4924-b49e-07a41ffaf126
scope: project
memory_type: experience
project_id: d44c219a-0b31-4de1-b160-323eb34a4c6a
usage_profile_id: 7aee455b-24cc-4008-bdaf-443721e6f939
status: active
revision: 1
request_id: artveris-20260920-nest-watch-procps
created_at: '2026-09-19T18:13:11.929693+00:00'
updated_at: '2026-09-19T18:13:11.929693+00:00'
tags:
- docker
- development
- hot-reload
- verified
---

Windows Docker Desktop 本地开发实测：Vite 使用轮询挂载源码后可以热更新；Nest watch 能检测源码并编译，但 node:24-slim 不自带 ps，Nest CLI 的 treeKillSync 内部 spawnSync('ps',['-A','-o','pid,ppid']) 失败后只杀父进程，遗留旧API进程占用3000，导致EADDRINUSE且仍响应旧代码。修复为仅在Dockerfile.dev安装procps，保留Nest已有watch流程，不引入额外监听依赖。修复后已验证后端临时响应字段加入与撤销都自动生效，容器ID和启动时间不变。前端也通过无需刷新页面的DOM标记验证HMR。临时验证标记已恢复，不进入提交。