add MaxConnDuration option for hostClient

Author: hankji

reverseproxy.go

@@ -84,6 +84,7 @@ func (p *ReverseProxy) init() error {
 		IsTLS:                  p.opt.tlsConfig != nil,
 		TLSConfig:              p.opt.tlsConfig,
 		DisablePathNormalizing: p.opt.disablePathNormalizing,
+		MaxConnDuration:        p.opt.maxConnDuration,
 	}
 	p.clients = append(p.clients, client)
 	return nil

reverseproxy_option.go

@@ -36,6 +36,9 @@ type buildOption struct {
 
 	// disablePathNormalizing disable path normalizing.
 	disablePathNormalizing bool
+
+	// maxConnDuration of hostClient
+	maxConnDuration time.Duration
 }
 
 func defaultBuildOption() *buildOption {
@@ -119,3 +122,10 @@ func WithDisablePathNormalizing(isDisablePathNormalizing bool) Option {
 		o.disablePathNormalizing = isDisablePathNormalizing
 	})
 }
+
+// WithTimeout specify the timeout of each request
+func WithMaxConnDuration(d time.Duration) Option {
+	return newFuncBuildOption(func(o *buildOption) {
+		o.maxConnDuration = d
+	})
+}