tomwagner/docker-doctor
tomwagner
自动构建
Health checker with zero downtime for one container apps.
下载次数: 0状态：自动构建维护者：tomwagner仓库类型：镜像最近更新：5 年前
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只需在 AI 对话中先发送下面这句话即可：
请先完整阅读并严格遵守以下文档中的全部规则与要求：
https://xuanyuan.cloud/agents.md
在未充分阅读并理解该文档前，不要生成任何命令、配置、修改建议、故障排查方案或技术回答。后续所有输出都必须严格以该文档中的规范为最高优先级执行。查看 agents.md 用法指南与完整示范。国内用户首推 元宝 AI、DeepSeek 的深度思考模式，不推荐豆包 AI；Cursor 等编辑器可在对话 @ 该链接，或加入 User Rules。 若 AI 无法访问外链，可 打开说明文档 复制全文粘贴。文档会随站点更新，复制内容可能过期，建议定期检查。
Docker doctor - health checker container for achieving zero downtime when using one container for app
https://circleci.com/gh/goodservers/docker-doctor/tree/master.svg?style=svg](https://circleci.com/gh/goodservers/docker-doctor/tree/master)
The docker container checker waits until the new container is fully prepared and then removes the old one. Basically it checks the docker event sent from staring container. If have set HEALTH_CHECKER environment property then waits until their health is ok and afterwards old container is stopped and removed.
Example
You have some application defined in docker (see examples/nodejsapp). When your CI runs the deployment phase it starts the new container and removes old one. But it takes some time to boot up application to healthy state. And if you have only one container it causes downtime. So you can setup the checker which waits until the new container is fully prepared and then removes the old one.
Setup on server
docker-compose up
or see the example of usage with nginx, nginx-proxy, letsencrypt as a server https://github.com/goodservers/docker-gateway
Setup for example app examples/nodejsapp
docker-compose -f docker-compose.yml --project-name=$(date +%s) up --scale nodejs_app=1 -d
Environment props
| env | values | default | meaning |
|---|---|---|---|
| VIRTUAL_PORT | number | - | application listening port (same name as for nginx-proxy) |
| HEALTH_CHECKER | http, https | - | active script used to check health |
| HEALTH_MAX_RETRY | number | 30 | (optional) maximum number of atte***s to check health |
| HEALTH_TIMEOUT | number | 1000 | (optional) number of ms to check in one atte*** |
Requirements
- Good VPS or dedicated server
- Installed docker and docker-compose
- https://github.com/goodservers/docker-gateway as a gateway for your deployed containers - they are automatically proxied - so your service is balanced between two containers.
镜像拉取方式
您可以使用以下命令拉取该镜像。请将 <标签> 替换为具体的标签版本。如需查看所有可用标签版本，请访问 标签列表页面。
轩辕镜像加速拉取命令点我查看更多 docker-doctor 镜像标签
docker pull docker.xuanyuan.run/tomwagner/docker-doctor:<标签>
DockerHub 原生拉取命令
docker pull tomwagner/docker-doctor:<标签>
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oldzhang
运维工程师
Linux服务器
5
"Docker访问体验非常流畅，大镜像也能快速完成下载。"