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api: add /api/debug/health for operator
Signed-off-by: xhe <xw897002528@gmail.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,43 @@ | ||
| // Copyright 2022 PingCAP, Inc. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package cli | ||
|
|
||
| import ( | ||
| "github.com/spf13/cobra" | ||
| "net/http" | ||
| ) | ||
|
|
||
| const ( | ||
| healthPrefix = "/api/debug/health" | ||
| ) | ||
|
|
||
| func GetHealthCmd(ctx *Context) *cobra.Command { | ||
| rootCmd := &cobra.Command{ | ||
| Use: "health", | ||
| Short: "", | ||
| } | ||
|
|
||
| rootCmd.RunE = func(cmd *cobra.Command, args []string) error { | ||
| resp, err := doRequest(cmd.Context(), ctx, http.MethodGet, healthPrefix, nil) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| cmd.Println(resp) | ||
| return nil | ||
| } | ||
|
|
||
| return rootCmd | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,112 @@ | ||
| // Copyright 2023 PingCAP, Inc. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package api | ||
|
|
||
| import ( | ||
| "crypto/tls" | ||
| "net" | ||
| "net/http" | ||
| "time" | ||
|
|
||
| ginzap "github.com/gin-contrib/zap" | ||
| "github.com/gin-gonic/gin" | ||
| "github.com/pingcap/TiProxy/lib/config" | ||
| "github.com/pingcap/TiProxy/lib/util/errors" | ||
| "github.com/pingcap/TiProxy/lib/util/waitgroup" | ||
| mgrcrt "github.com/pingcap/TiProxy/pkg/manager/cert" | ||
| mgrcfg "github.com/pingcap/TiProxy/pkg/manager/config" | ||
| mgrns "github.com/pingcap/TiProxy/pkg/manager/namespace" | ||
| "go.uber.org/atomic" | ||
| "go.uber.org/ratelimit" | ||
| "go.uber.org/zap" | ||
| ) | ||
|
|
||
| const ( | ||
| // DefAPILimit is the global API limit per second. | ||
| DefAPILimit = 100 | ||
| // DefConnTimeout is used as timeout duration in the HTTP server. | ||
| DefConnTimeout = 30 * time.Second | ||
| ) | ||
|
|
||
| type HTTPHandler interface { | ||
| RegisterHTTP(c *gin.Engine) error | ||
| } | ||
|
|
||
| type HTTPServer struct { | ||
| listener net.Listener | ||
| wg waitgroup.WaitGroup | ||
| } | ||
|
|
||
| func NewHTTPServer(cfg config.API, lg *zap.Logger, | ||
| nsmgr *mgrns.NamespaceManager, cfgmgr *mgrcfg.ConfigManager, | ||
| crtmgr *mgrcrt.CertManager, handler HTTPHandler, | ||
| ready *atomic.Bool) (*HTTPServer, error) { | ||
| h := &HTTPServer{} | ||
|
|
||
| var err error | ||
| h.listener, err = net.Listen("tcp", cfg.Addr) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| gin.SetMode(gin.ReleaseMode) | ||
| engine := gin.New() | ||
| limit := ratelimit.New(DefAPILimit) | ||
| engine.Use( | ||
| gin.Recovery(), | ||
| ginzap.GinzapWithConfig(lg.Named("gin"), &ginzap.Config{ | ||
| UTC: true, | ||
| SkipPaths: []string{ | ||
| "/api/debug/health", | ||
| }, | ||
| }), | ||
| func(c *gin.Context) { | ||
| _ = limit.Take() | ||
| if !ready.Load() { | ||
| c.Abort() | ||
| c.JSON(http.StatusInternalServerError, "service not ready") | ||
| } | ||
| }, | ||
| ) | ||
|
|
||
| register(engine.Group("/api"), cfg, lg, nsmgr, cfgmgr) | ||
|
|
||
| if tlscfg := crtmgr.ServerTLS(); tlscfg != nil { | ||
| h.listener = tls.NewListener(h.listener, tlscfg) | ||
| } | ||
|
|
||
| if handler != nil { | ||
| if err := handler.RegisterHTTP(engine); err != nil { | ||
| return nil, errors.WithStack(err) | ||
| } | ||
| } | ||
|
|
||
| h.wg.Run(func() { | ||
| hsrv := http.Server{ | ||
| Handler: engine.Handler(), | ||
| ReadHeaderTimeout: DefConnTimeout, | ||
| IdleTimeout: DefConnTimeout, | ||
| } | ||
| lg.Info("HTTP closed", zap.Error(hsrv.Serve(h.listener))) | ||
| }) | ||
|
|
||
| return h, nil | ||
| } | ||
|
|
||
| func (h *HTTPServer) Close() error { | ||
| err := h.listener.Close() | ||
| h.wg.Wait() | ||
| return err | ||
| } |
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