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main.go
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main.go
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package main
import (
"flag"
"fmt"
"log"
"os"
"os/signal"
"syscall"
"time"
"github.com/skupperproject/skupper/api/types"
"github.com/skupperproject/skupper/client"
"github.com/skupperproject/skupper/pkg/certs"
"github.com/skupperproject/skupper/pkg/event"
"github.com/skupperproject/skupper/pkg/kube"
"github.com/skupperproject/skupper/pkg/version"
)
func describe(i interface{}) {
fmt.Printf("(%v, %T)\n", i, i)
fmt.Println()
}
var onlyOneSignalHandler = make(chan struct{})
var shutdownSignals = []os.Signal{os.Interrupt, syscall.SIGTERM}
func SetupSignalHandler() (stopCh <-chan struct{}) {
close(onlyOneSignalHandler) // panics when called twice
stop := make(chan struct{})
c := make(chan os.Signal, 2)
signal.Notify(c, shutdownSignals...)
go func() {
<-c
close(stop)
<-c
os.Exit(1) // second signal. Exit directly.
}()
return stop
}
func main() {
// if -version used, report and exit
isVersion := flag.Bool("version", false, "Report the version of the Skupper Service Controller")
flag.Parse()
if *isVersion {
fmt.Println(version.Version)
os.Exit(0)
}
// Startup message
log.Printf("Skupper service controller")
log.Printf("Version: %s", version.Version)
origin := os.Getenv("SKUPPER_SITE_ID")
namespace := os.Getenv("SKUPPER_NAMESPACE")
disableServiceSync := os.Getenv("SKUPPER_DISABLE_SERVICE_SYNC")
// set up signals so we handle the first shutdown signal gracefully
stopCh := SetupSignalHandler()
// todo, get context from env?
cli, err := client.NewClient(namespace, "", "")
if err != nil {
log.Fatal("Error getting van client", err.Error())
}
tlsConfig := certs.GetTlsConfigRetriever(true, types.ControllerConfigPath+"tls.crt", types.ControllerConfigPath+"tls.key", types.ControllerConfigPath+"ca.crt")
event.StartDefaultEventStore(stopCh)
controller, err := NewController(cli, origin, tlsConfig, disableServiceSync == "true")
if err != nil {
log.Fatal("Error getting new controller", err.Error())
}
log.Println("Waiting for Skupper router component to start")
_, err = kube.WaitDeploymentReady(types.TransportDeploymentName, namespace, cli.KubeClient, time.Second*180, time.Second)
if err != nil {
log.Fatal("Error waiting for transport deployment to be ready: ", err.Error())
}
// start the controller workers
if err = controller.Run(stopCh); err != nil {
log.Fatal("Error running controller: ", err.Error())
}
}