refactor(client): 移除心跳机制并使用HTTP/2保活

移除客户端心跳机制，改用HTTP/2的ReadIdleTimeout和PingTimeout实现连接保活
更新相关依赖版本

Author: orange-juzipi

go.mod

@@ -6,6 +6,7 @@ require (
 	connectrpc.com/connect v1.19.0
 	github.com/spf13/cobra v1.10.1
 	github.com/spf13/viper v1.21.0
+	golang.org/x/net v0.46.0
 	google.golang.org/protobuf v1.36.9
 )
 
@@ -20,7 +21,7 @@ require (
 	github.com/spf13/pflag v1.0.10 // indirect
 	github.com/subosito/gotenv v1.6.0 // indirect
 	go.yaml.in/yaml/v3 v3.0.4 // indirect
-	golang.org/x/sys v0.36.0 // indirect
-	golang.org/x/text v0.29.0 // indirect
+	golang.org/x/sys v0.37.0 // indirect
+	golang.org/x/text v0.30.0 // indirect
 	gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 // indirect
 )

go.sum

@@ -43,10 +43,12 @@ github.com/subosito/gotenv v1.6.0 h1:9NlTDc1FTs4qu0DDq7AEtTPNw6SVm7uBMsUCUjABIf8
 github.com/subosito/gotenv v1.6.0/go.mod h1:Dk4QP5c2W3ibzajGcXpNraDfq2IrhjMIvMSWPKKo0FU=
 go.yaml.in/yaml/v3 v3.0.4 h1:tfq32ie2Jv2UxXFdLJdh3jXuOzWiL1fo0bu/FbuKpbc=
 go.yaml.in/yaml/v3 v3.0.4/go.mod h1:DhzuOOF2ATzADvBadXxruRBLzYTpT36CKvDb3+aBEFg=
-golang.org/x/sys v0.36.0 h1:KVRy2GtZBrk1cBYA7MKu5bEZFxQk4NIDV6RLVcC8o0k=
-golang.org/x/sys v0.36.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
-golang.org/x/text v0.29.0 h1:1neNs90w9YzJ9BocxfsQNHKuAT4pkghyXc4nhZ6sJvk=
-golang.org/x/text v0.29.0/go.mod h1:7MhJOA9CD2qZyOKYazxdYMF85OwPdEr9jTtBpO7ydH4=
+golang.org/x/net v0.46.0 h1:giFlY12I07fugqwPuWJi68oOnpfqFnJIJzaIIm2JVV4=
+golang.org/x/net v0.46.0/go.mod h1:Q9BGdFy1y4nkUwiLvT5qtyhAnEHgnQ/zd8PfU6nc210=
+golang.org/x/sys v0.37.0 h1:fdNQudmxPjkdUTPnLn5mdQv7Zwvbvpaxqs831goi9kQ=
+golang.org/x/sys v0.37.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/text v0.30.0 h1:yznKA/E9zq54KzlzBEAWn1NXSQ8DIp/NYMy88xJjl4k=
+golang.org/x/text v0.30.0/go.mod h1:yDdHFIX9t+tORqspjENWgzaCVXgk0yYnYuSZ8UzzBVM=
 google.golang.org/protobuf v1.36.9 h1:w2gp2mA27hUeUzj9Ex9FBjsBm40zfaDtEWow293U7Iw=
 google.golang.org/protobuf v1.36.9/go.mod h1:fuxRtAxBytpl4zzqUh6/eyUujkJdNiuEkXntxiD/uRU=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=

internal/client/client.go

@@ -18,10 +18,10 @@ import (
 	"github.com/orange-juzipi/cert-deploy/pb/deployPB"
 	"github.com/orange-juzipi/cert-deploy/pb/deployPB/deployPBconnect"
 	"github.com/orange-juzipi/cert-deploy/pkg/logger"
+	"golang.org/x/net/http2"
 )
 
 const (
-	heartbeatInterval = 5 * time.Second
 	downloadTimeout   = 5 * time.Minute
 	maxReconnectDelay = 5 * time.Minute
 )
@@ -50,11 +50,13 @@ func NewClient(ctx context.Context) (*Client, error) {
 	}
 
 	httpClient := &http.Client{
-		Transport: &http.Transport{
-			TLSHandshakeTimeout:   10 * time.Second,
-			ExpectContinueTimeout: 1 * time.Second,
-			IdleConnTimeout:       90 * time.Second,
+		Transport: &http2.Transport{
+			// 若连接在 30s 内无任何帧往来，自动发送 HTTP/2 PING
+			ReadIdleTimeout: 30 * time.Second,
+			// PING 发出后 15s 内没响应就视为断开
+			PingTimeout: 10 * time.Second,
 		},
+		Timeout: 0,
 	}
 
 	client := &Client{
@@ -203,24 +205,6 @@ func (c *Client) handleNotifyStream(stream *connect.ServerStreamForClient[deploy
 	}
 }
 
-// StartHeartbeat 启动心跳
-func (c *Client) StartHeartbeat() {
-	ticker := time.NewTicker(heartbeatInterval)
-	defer ticker.Stop()
-
-	for {
-		select {
-		case <-c.ctx.Done():
-			logger.Info("停止发送心跳")
-			return
-		case <-ticker.C:
-			if err := c.register(); err != nil {
-				continue
-			}
-		}
-	}
-}
-
 // deployCertificate 部署证书
 func (c *Client) deployCertificate(domain, downloadURL string) {
 	deployer := NewCertDeployer(c)

internal/scheduler/scheduler.go

@@ -35,9 +35,6 @@ func Start(ctx context.Context) {
 		logger.Fatal("创建调度器失败", "error", err)
 	}
 
-	// 启动心跳
-	go scheduler.client.StartHeartbeat()
-
 	// 等待上下文取消
 	<-ctx.Done()