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yeasy
2026-03-21 12:57:51 -07:00
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07_dockerfile/7.12_healthcheck.md
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@@ -78,6 +78,7 @@ HEALTHCHECK NONE
使用 `curl` 或 `wget`：
```docker
## 使用 curl
HEALTHCHECK CMD curl -f http://localhost/ || exit 1
@@ -90,6 +91,7 @@ HEALTHCHECK CMD wget -q --spider http://localhost/ || exit 1
#### 数据库
```docker
## MySQL
HEALTHCHECK CMD mysqladmin ping -h localhost || exit 1
@@ -143,6 +145,7 @@ services:
### 7.12.7 查看健康状态
```bash
## 查看容器状态（包含健康信息）
$ docker ps
@@ -184,6 +187,7 @@ $ docker inspect --format '{{json .State.Health}}' mycontainer | jq
应用启动可能需要时间 (如 Java 应用)。设置 `--start-period` 可以防止在启动阶段因检查失败而误判。
```docker
## 给应用 1 分钟启动时间
HEALTHCHECK --start-period=60s CMD curl -f http://localhost/ || exit 1