# Health Check
> 原文:[https://docs.gitlab.com/ee/user/admin_area/monitoring/health_check.html](https://docs.gitlab.com/ee/user/admin_area/monitoring/health_check.html)
* [IP whitelist](#ip-whitelist)
* [Using the endpoints locally](#using-the-endpoints-locally)
* [Health](#health)
* [Readiness](#readiness)
* [Liveness](#liveness)
* [Access token (Deprecated)](#access-token-deprecated)
# Health Check[](#health-check-core-only "Permalink")
版本历史
* 在 GitLab 9.1 中[引入](https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/10416)了活动性和就绪性探针.
* `health_check`端点是在 GitLab 8.8 中[引入的](https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/3888) ,在 GitLab 9.1 中已弃用.
* 在 GitLab 9.4 中不赞成使用[访问令牌](#access-token-deprecated) ,而推荐使用[IP 白名单](#ip-whitelist) .
manbetx 客户端打不开提供活跃度和准备情况探针,以指示服务的健康状况和对所需服务的可达性. 这些探针报告数据库连接,Redis 连接和对文件系统的访问状态. [可以将](https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes/)这些端点[提供给 Kubernetes 之类的调度程序](https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes/)以保持流量,直到系统准备就绪或根据需要重新启动容器.
## IP whitelist[](#ip-whitelist "Permalink")
要访问监视资源,需要将发出请求的客户端 IP 包含在白名单中. 有关详细信息,请参阅[如何将 IP 添加到监视端点的白名单](../../../administration/monitoring/ip_whitelist.html) .
## Using the endpoints locally[](#using-the-endpoints-locally "Permalink")
使用默认白名单设置,可以使用以下 URL 从本地主机访问探针:
```
GET http://localhost/-/health
```
```
GET http://localhost/-/readiness
```
```
GET http://localhost/-/liveness
```
## Health[](#health "Permalink")
检查应用服务器是否正在运行. 它不会验证数据库或其他服务是否正在运行. 该端点绕过了 Rails Controller,并在请求处理生命周期的早期就作为附加的中间件`BasicHealthCheck`实现.
```
GET /-/health
```
请求示例:
```
curl 'https://gitlab.example.com/-/health'
```
响应示例:
```
GitLab OK
```
## Readiness[](#readiness "Permalink")
就绪探针会检查 GitLab 实例是否准备好通过 Rails Controller 接受流量. 默认情况下,该检查仅验证实例检查.
如果指定了`all=1`参数,则检查还将验证相关服务(数据库,Redis,Gitaly 等)并为每个服务提供状态.
```
GET /-/readiness
GET /-/readiness?all=1
```
请求示例:
```
curl 'https://gitlab.example.com/-/readiness'
```
Example response:
```
{ "master_check":[{ "status":"failed", "message": "unexpected Master check result: false" }], ... }
```
失败时,端点将返回`503` HTTP 状态代码.
如果通过`token`身份验证,则此检查确实会命中数据库,并且会重做 Redis.
此检查不受机架攻击.
## Liveness[](#liveness "Permalink")
**警告:**在 GitLab [12.4](https://about.gitlab.com/upcoming-releases/)中,"活动性"检查的响应主体已更改为与以下示例匹配.
检查应用服务器是否正在运行. 该探针用于了解 Rails 控制器是否不会由于多线程而死锁.
```
GET /-/liveness
```
请求示例:
```
curl 'https://gitlab.example.com/-/liveness'
```
响应示例:
成功后,端点将返回`200` HTTP 状态代码和如下响应.
```
{ "status": "ok" }
```
失败时,端点将返回`503` HTTP 状态代码.
此检查不受机架攻击.
## Access token (Deprecated)[](#access-token-deprecated "Permalink")
**注意:**在 GitLab 9.4 中不赞成使用访问令牌,而推荐使用[IP 白名单](#ip-whitelist) .
访问探针端点时需要提供访问令牌. 当前接受的令牌可以在您的 GitLab 实例的**管理区域>监视>运行状况检查** ( `admin/health_check` )页面下找到.
[![access token](https://img.kancloud.cn/dc/57/dc577bb019d2cabb98ad703938c3f589_764x152.png)](img/health_check_token.png)
可以将访问令牌作为 URL 参数传递:
```
https://gitlab.example.com/-/readiness?token=ACCESS_TOKEN
```
**注意:**如果无法访问数据库或 Redis 服务,则不能保证探针端点响应正确. 您应该从已弃用的访问令牌切换到[IP 白名单](#ip-whitelist) ,以避免出现这种情况.
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