Add health check endpoint (#18465)

* chore: add health check endpoint

docs: update document about health check

fix: fix up Sqlite3 ping. current ping will success even if the db file is missing

fix: do not expose privacy information in output field

* refactor: remove HealthChecker struct

* Added `/api/healthz` to install routes.

This was needed for using /api/healthz endpoint in Docker healthchecks,
otherwise, Docker would never become healthy if using healthz endpoint
and users would not be able to complete the installation of Gitea.

* Update modules/cache/cache.go

* fine tune

* Remove unnecessary test code. Now there are 2 routes for installation (and maybe more in future)

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: 6543 <6543@obermui.de>
Co-authored-by: Marcos de Oliveira <marcossantos@furb.br>

1 files changed, 44 insertions, 0 deletions

diff --git a/docs/content/doc/installation/on-kubernetes.zh-tw.md b/docs/content/doc/installation/on-kubernetes.zh-tw.md
index 9add5c4ee1..5ea412aa00 100644
--- a/docs/content/doc/installation/on-kubernetes.zh-tw.md
+++ b/docs/content/doc/installation/on-kubernetes.zh-tw.md
@@ -25,3 +25,47 @@ helm install gitea gitea-charts/gitea
 ```
 
 若您想自訂安裝（包括使用 kubernetes ingress），請前往完整的 [Gitea helm chart configuration details](https://gitea.com/gitea/helm-chart/)
+
+##運行狀況檢查終端節點
+
+Gitea 附帶了一個運行狀況檢查端點 `/api/healthz`，你可以像這樣在 kubernetes 中配置它:
+
+```yaml
+  livenessProbe:
+    httpGet:
+      path: /api/healthz
+      port: http
+    initialDelaySeconds: 200
+    timeoutSeconds: 5
+    periodSeconds: 10
+    successThreshold: 1
+    failureThreshold: 10
+```
+
+成功的運行狀況檢查回應將使用 HTTP 代碼 `200` 進行回應，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"
+      }
+    ]
+  }
+}
+```
+
+有關更多信息，請參考kubernetes文檔[定義一個存活態 HTTP請求接口]（https://kubernetes.io/zh/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes/）