docs[zh-cn]: Install on Kubernetes (#20874)

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>

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+---
+date: "2020-03-19T19:27:00+02:00"
+title: "在 Kubernetes 安装 Gitea"
+slug: "install-on-kubernetes"
+weight: 10
+toc: false
+draft: false
+menu:
+  sidebar:
+    parent: "installation"
+    name: "Kubernetes"
+    weight: 50
+    identifier: "install-on-kubernetes"
+---
+
+# 使用 Helm 在 Kubernetes 云原生环境中安装 Gitea
+
+Gitea 已经提供了便于在 Kubernetes 云原生环境中安装所需的 Helm Chart
+
+默认安装指令为：
+
+```bash
+helm repo add gitea https://dl.gitea.io/charts
+helm repo update
+helm install gitea gitea/gitea
+```
+
+如果采用默认安装指令，Helm 会部署单实例的 Gitea, PostgreSQL, Memcached。若您想实现自定义安装（包括配置 Gitea 集群、NGINX Ingress、MySQL、MariaDB、持久存储等），请前往阅读：[Gitea Helm Chart](https://gitea.com/gitea/helm-chart/)
+
+您也可以通过 `helm show` 命令导出 `README.md` 和配置文件 `values.yaml` 进行学习和编辑，例如：
+
+```bash
+helm show values gitea > values.yaml
+helm show readme gitea > README.md
+
+# 使用自定义的配置文件 values.yaml
+helm install gitea -f values.yaml gitea/gitea
+```
+
+## 运行状况检查接口
+
+Gitea 附带了一个运行状况检查接口 `/api/healthz`，你可以像这样在 Kubernetes 中配置它：
+
+```yaml
+  livenessProbe:
+    httpGet:
+      path: /api/healthz
+      port: http
+    initialDelaySeconds: 200
+    timeoutSeconds: 5
+    periodSeconds: 10
+    successThreshold: 1
+    failureThreshold: 10
+```
+
+成功的运行状况检查响应代码为 HTTP `200`，下面是示例：
+
+```
+HTTP/1.1 200 OK
+
+
+{
+  "status": "pass",
+  "description": "Gitea: Git with a cup of tea",
+  "checks": {
+    "cache:ping": [
+      {
+        "status": "pass",
+        "time": "2022-02-19T09:16:08Z"
+      }
+    ],
+    "database:ping": [
+      {
+        "status": "pass",
+        "time": "2022-02-19T09:16:08Z"
+      }
+    ]
+  }
+}
+```
+
+有关更多信息，请参考 Kubernetes 文档 [配置存活、就绪和启动探测器](https://kubernetes.io/zh-cn/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes/)