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controller.go
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controller.go
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package controller
import (
"context"
"crypto/tls"
"fmt"
"net/http"
"github.com/blackstorm/ingress-go/pkg/controller/matcher"
"github.com/blackstorm/ingress-go/pkg/store"
"github.com/blackstorm/ingress-go/pkg/watcher"
"k8s.io/client-go/kubernetes"
"k8s.io/klog/v2"
)
func Server(client kubernetes.Interface, defaultCert DefaultCertificate) error {
// init watchers
ingressWatcher, secretWatcher := newWatchers(client)
// init stores
certificateStore := store.NewCertificateStore()
// init matcher
requestMatcher := matcher.NewRequestMatcher()
tlsMatcher := matcher.NewTLSMatcher(certificateStore)
// add listeners
ingressWatcher.AddListeners(requestMatcher, tlsMatcher)
secretWatcher.AddListener(certificateStore)
// end
serverHandler := newServerHandler(requestMatcher)
// start watch
runWatchers(context.Background(), ingressWatcher, secretWatcher)
// start servers
go http.ListenAndServe(":80", serverHandler)
go listenAndServeTLS(443, serverHandler, tlsMatcher, defaultCert)
go listenAndServeHttp3(serverHandler, defaultCert)
// todo
return nil
}
func listenAndServeTLS(port uint,
handler *serverHandler,
tlsMatcher *matcher.TLSMatcher, defaultCert DefaultCertificate) error {
tlsServer := http.Server{
Addr: fmt.Sprintf(":%d", port),
Handler: handler,
}
tlsServer.TLSConfig = &tls.Config{
// CipherSuites
// if not set CipherSuites. will use initDefaultCipherSuites for defualt sets
GetCertificate: func(hello *tls.ClientHelloInfo) (*tls.Certificate, error) {
// klog.Infof("ssl handshake hello server %s", hello.ServerName)
cert := tlsMatcher.Match(hello.ServerName, false)
if cert == nil {
klog.Warningf("server %s certificate no found", hello.ServerName)
return nil, fmt.Errorf("no found %s certificate", hello.ServerName)
} else {
return cert, nil
}
},
}
return tlsServer.ListenAndServeTLS(defaultCert.certFile, defaultCert.keyFile)
}
func newWatchers(client kubernetes.Interface) (*watcher.IngressWatcher, *watcher.SecretWatcher) {
return watcher.NewIngressWatcher(client), watcher.NewSecretWatcher(client)
}
func runWatchers(ctx context.Context, watchers ...watcher.Watcher) {
for _, watcher := range watchers {
go watcher.Watch(ctx)
}
}