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main.go
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main.go
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package main
import (
"flag"
"os"
"github.com/erkanzileli/admission-webhooks-the-easy-way/examples/custom_defaulter"
"github.com/erkanzileli/admission-webhooks-the-easy-way/examples/custom_validator"
"github.com/erkanzileli/admission-webhooks-the-easy-way/examples/defaulter_handler"
"github.com/erkanzileli/admission-webhooks-the-easy-way/examples/validator_handler"
log "github.com/sirupsen/logrus"
"sigs.k8s.io/controller-runtime/pkg/client/config"
"sigs.k8s.io/controller-runtime/pkg/manager"
"sigs.k8s.io/controller-runtime/pkg/manager/signals"
"sigs.k8s.io/controller-runtime/pkg/webhook"
)
var (
certsDir = flag.String("certs-dir", "/app/certs", "certificates directory that contains the tls.crt and tls.key files")
)
func init() {
flag.Parse()
}
func main() {
// set up a Manager
log.Info("setting up manager")
mgr, err := manager.New(config.GetConfigOrDie(), manager.Options{})
if err != nil {
log.Error(err, "unable to set up overall controller manager")
os.Exit(1)
}
// create a webhook server
log.Info("setting up webhook server")
hookServer := &webhook.Server{
Port: 8443,
CertDir: *certsDir,
}
if err = mgr.Add(hookServer); err != nil {
panic(err)
}
// register webhooks
log.Info("registering webhooks to the server")
hookServer.Register("/handle-mutate-v1-pod", &webhook.Admission{Handler: defaulter_handler.NewPodDefaulterHandler()})
hookServer.Register("/handle-validate-v1-pod", &webhook.Admission{Handler: validator_handler.NewPodValidatorHandler()})
hookServer.Register("/mutate-v1-pod", custom_defaulter.NewCustomPodDefaulterWebhook())
hookServer.Register("/validate-v1-pod", custom_validator.NewCustomPodValidatorWebhook())
// start server
log.Info("starting manager")
if err = mgr.Start(signals.SetupSignalHandler()); err != nil {
log.Error(err, "unable to run manager")
os.Exit(1)
}
}