Refactoring of kubernetes informers and local caches

This commit is contained in:
Manuel de Brito Fontes 2018-01-18 16:14:42 -03:00
parent 8975800740
commit e9a00ff916
23 changed files with 1704 additions and 817 deletions

View file

@ -20,7 +20,6 @@ import (
"encoding/json"
"fmt"
"math/rand"
"net"
"net/http"
"net/http/pprof"
"os"
@ -29,7 +28,6 @@ import (
"syscall"
"time"
proxyproto "github.com/armon/go-proxyproto"
"github.com/golang/glog"
"github.com/prometheus/client_golang/prometheus/promhttp"
@ -121,7 +119,7 @@ func main() {
// create the default SSL certificate (dummy)
defCert, defKey := ssl.GetFakeSSLCert()
c, err := ssl.AddOrUpdateCertAndKey(fakeCertificate, defCert, defKey, []byte{})
c, err := ssl.AddOrUpdateCertAndKey(fakeCertificate, defCert, defKey, []byte{}, fs)
if err != nil {
glog.Fatalf("Error generating self signed certificate: %v", err)
}
@ -133,10 +131,6 @@ func main() {
ngx := controller.NewNGINXController(conf, fs)
if conf.EnableSSLPassthrough {
setupSSLProxy(conf.ListenPorts.HTTPS, conf.ListenPorts.SSLProxy, ngx)
}
go handleSigterm(ngx, func(code int) {
os.Exit(code)
})
@ -168,49 +162,6 @@ func handleSigterm(ngx *controller.NGINXController, exit exiter) {
exit(exitCode)
}
func setupSSLProxy(sslPort, proxyPort int, n *controller.NGINXController) {
glog.Info("starting TLS proxy for SSL passthrough")
n.Proxy = &controller.TCPProxy{
Default: &controller.TCPServer{
Hostname: "localhost",
IP: "127.0.0.1",
Port: proxyPort,
ProxyProtocol: true,
},
}
listener, err := net.Listen("tcp", fmt.Sprintf(":%v", sslPort))
if err != nil {
glog.Fatalf("%v", err)
}
proxyList := &proxyproto.Listener{Listener: listener}
// start goroutine that accepts tcp connections in port 443
go func() {
for {
var conn net.Conn
var err error
if n.IsProxyProtocolEnabled {
// we need to wrap the listener in order to decode
// proxy protocol before handling the connection
conn, err = proxyList.Accept()
} else {
conn, err = listener.Accept()
}
if err != nil {
glog.Warningf("unexpected error accepting tcp connection: %v", err)
continue
}
glog.V(3).Infof("remote address %s to local %s", conn.RemoteAddr(), conn.LocalAddr())
go n.Proxy.Handle(conn)
}
}()
}
// createApiserverClient creates new Kubernetes Apiserver client. When kubeconfig or apiserverHost param is empty
// the function assumes that it is running inside a Kubernetes cluster and attempts to
// discover the Apiserver. Otherwise, it connects to the Apiserver specified.