198 lines
7.1 KiB
Go
198 lines
7.1 KiB
Go
/*
|
|
Copyright 2021.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package main
|
|
|
|
import (
|
|
"flag"
|
|
"fmt"
|
|
"os"
|
|
r "runtime"
|
|
|
|
"github.com/jenkinsci/kubernetes-operator/api/v1alpha2"
|
|
"github.com/jenkinsci/kubernetes-operator/controllers"
|
|
"github.com/jenkinsci/kubernetes-operator/pkg/client"
|
|
"github.com/jenkinsci/kubernetes-operator/pkg/configuration/base/resources"
|
|
"github.com/jenkinsci/kubernetes-operator/pkg/constants"
|
|
"github.com/jenkinsci/kubernetes-operator/pkg/event"
|
|
"github.com/jenkinsci/kubernetes-operator/pkg/log"
|
|
"github.com/jenkinsci/kubernetes-operator/pkg/notifications"
|
|
e "github.com/jenkinsci/kubernetes-operator/pkg/notifications/event"
|
|
"github.com/jenkinsci/kubernetes-operator/version"
|
|
|
|
routev1 "github.com/openshift/api/route/v1"
|
|
"github.com/pkg/errors"
|
|
corev1 "k8s.io/api/core/v1"
|
|
"k8s.io/apimachinery/pkg/runtime"
|
|
utilruntime "k8s.io/apimachinery/pkg/util/runtime"
|
|
"k8s.io/client-go/kubernetes"
|
|
clientgoscheme "k8s.io/client-go/kubernetes/scheme"
|
|
"sigs.k8s.io/controller-runtime/pkg/client/config"
|
|
|
|
// Import all Kubernetes client auth plugins (e.g. Azure, GCP, OIDC, etc.)
|
|
// to ensure that exec-entrypoint and run can make use of them.
|
|
_ "k8s.io/client-go/plugin/pkg/client/auth"
|
|
ctrl "sigs.k8s.io/controller-runtime"
|
|
"sigs.k8s.io/controller-runtime/pkg/healthz"
|
|
logf "sigs.k8s.io/controller-runtime/pkg/log"
|
|
"sigs.k8s.io/controller-runtime/pkg/log/zap"
|
|
// +kubebuilder:scaffold:imports
|
|
)
|
|
|
|
var (
|
|
metricsHost = "0.0.0.0"
|
|
metricsPort int32 = 8383
|
|
scheme = runtime.NewScheme()
|
|
logger = logf.Log.WithName("cmd")
|
|
)
|
|
|
|
func printInfo() {
|
|
logger.Info(fmt.Sprintf("Version: %s", version.Version))
|
|
logger.Info(fmt.Sprintf("Git commit: %s", version.GitCommit))
|
|
logger.Info(fmt.Sprintf("Go Version: %s", r.Version()))
|
|
logger.Info(fmt.Sprintf("Go OS/Arch: %s/%s", r.GOOS, r.GOARCH))
|
|
}
|
|
|
|
func init() {
|
|
utilruntime.Must(clientgoscheme.AddToScheme(scheme))
|
|
utilruntime.Must(v1alpha2.AddToScheme(scheme))
|
|
utilruntime.Must(routev1.AddToScheme(scheme))
|
|
utilruntime.Must(corev1.AddToScheme(scheme))
|
|
// +kubebuilder:scaffold:scheme
|
|
}
|
|
|
|
func main() {
|
|
var metricsAddr string
|
|
var enableLeaderElection bool
|
|
var probeAddr string
|
|
|
|
isRunningInCluster, err := resources.IsRunningInCluster()
|
|
if err != nil {
|
|
fatal(errors.Wrap(err, "failed to determine if operator is running in cluster"), true)
|
|
}
|
|
|
|
flag.StringVar(&metricsAddr, "metrics-bind-address", ":8080", "The address the metric endpoint binds to.")
|
|
flag.StringVar(&probeAddr, "health-probe-bind-address", ":8081", "The address the probe endpoint binds to.")
|
|
flag.BoolVar(&enableLeaderElection, "leader-elect", isRunningInCluster, "Enable leader election for controller manager. "+
|
|
"Enabling this will ensure there is only one active controller manager.")
|
|
hostname := flag.String("jenkins-api-hostname", "", "Hostname or IP of Jenkins API. It can be service name, node IP or localhost.")
|
|
port := flag.Int("jenkins-api-port", 0, "The port on which Jenkins API is running. Note: If you want to use nodePort don't set this setting and --jenkins-api-use-nodeport must be true.")
|
|
useNodePort := flag.Bool("jenkins-api-use-nodeport", false, "Connect to Jenkins API using the service nodePort instead of service port. If you want to set this as true - don't set --jenkins-api-port.")
|
|
kubernetesClusterDomain := flag.String("cluster-domain", "cluster.local", "Use custom domain name instead of 'cluster.local'.")
|
|
opts := zap.Options{
|
|
Development: true,
|
|
}
|
|
opts.BindFlags(flag.CommandLine)
|
|
flag.Parse()
|
|
|
|
debug := &opts.Development
|
|
log.Debug = *debug
|
|
ctrl.SetLogger(zap.New(zap.UseFlagOptions(&opts)))
|
|
printInfo()
|
|
|
|
namespace, found := os.LookupEnv("WATCH_NAMESPACE")
|
|
if !found {
|
|
fatal(errors.New("failed to get watch namespace, please set up WATCH_NAMESPACE environment variable"), *debug)
|
|
}
|
|
logger.Info(fmt.Sprintf("Watch namespace: %v", namespace))
|
|
|
|
// get a config to talk to the API server
|
|
cfg, err := config.GetConfig()
|
|
if err != nil {
|
|
fatal(errors.Wrap(err, "failed to get config"), *debug)
|
|
}
|
|
|
|
mgr, err := ctrl.NewManager(ctrl.GetConfigOrDie(), ctrl.Options{
|
|
Scheme: scheme,
|
|
MetricsBindAddress: fmt.Sprintf("%s:%d", metricsHost, metricsPort),
|
|
Port: 9443,
|
|
HealthProbeBindAddress: probeAddr,
|
|
LeaderElection: enableLeaderElection,
|
|
LeaderElectionID: "c674355f.jenkins.io",
|
|
Namespace: namespace,
|
|
})
|
|
if err != nil {
|
|
fatal(errors.Wrap(err, "unable to start manager"), *debug)
|
|
}
|
|
|
|
// setup events
|
|
events, err := event.New(cfg, constants.OperatorName)
|
|
if err != nil {
|
|
fatal(errors.Wrap(err, "failed to setup events"), *debug)
|
|
}
|
|
|
|
// setup controller
|
|
clientSet, err := kubernetes.NewForConfig(cfg)
|
|
if err != nil {
|
|
fatal(errors.Wrap(err, "failed to create Kubernetes client set"), *debug)
|
|
}
|
|
|
|
if resources.IsRouteAPIAvailable(clientSet) {
|
|
logger.Info("Route API found: Route creation will be performed")
|
|
}
|
|
notificationEvents := make(chan e.Event)
|
|
go notifications.Listen(notificationEvents, events, mgr.GetClient())
|
|
|
|
// validate jenkins API connection
|
|
jenkinsAPIConnectionSettings := client.JenkinsAPIConnectionSettings{Hostname: *hostname, Port: *port, UseNodePort: *useNodePort}
|
|
if err := jenkinsAPIConnectionSettings.Validate(); err != nil {
|
|
fatal(errors.Wrap(err, "invalid command line parameters"), *debug)
|
|
}
|
|
|
|
// validate kubernetes cluster domain
|
|
if *kubernetesClusterDomain == "" {
|
|
fatal(errors.Wrap(err, "Kubernetes cluster domain can't be empty"), *debug)
|
|
}
|
|
|
|
if err = (&controllers.JenkinsReconciler{
|
|
Client: mgr.GetClient(),
|
|
Scheme: mgr.GetScheme(),
|
|
JenkinsAPIConnectionSettings: jenkinsAPIConnectionSettings,
|
|
ClientSet: *clientSet,
|
|
Config: *cfg,
|
|
NotificationEvents: ¬ificationEvents,
|
|
KubernetesClusterDomain: *kubernetesClusterDomain,
|
|
}).SetupWithManager(mgr); err != nil {
|
|
fatal(errors.Wrap(err, "unable to create Jenkins controller"), *debug)
|
|
}
|
|
|
|
if err = (&v1alpha2.Jenkins{}).SetupWebhookWithManager(mgr); err != nil {
|
|
fatal(errors.Wrap(err, "unable to create Webhook"), *debug)
|
|
}
|
|
// +kubebuilder:scaffold:builder
|
|
|
|
if err := mgr.AddHealthzCheck("health", healthz.Ping); err != nil {
|
|
fatal(errors.Wrap(err, "unable to set up health check"), *debug)
|
|
}
|
|
if err := mgr.AddReadyzCheck("check", healthz.Ping); err != nil {
|
|
fatal(errors.Wrap(err, "unable to set up ready check"), *debug)
|
|
}
|
|
|
|
logger.Info("starting manager")
|
|
if err := mgr.Start(ctrl.SetupSignalHandler()); err != nil {
|
|
fatal(errors.Wrap(err, "problem running manager"), *debug)
|
|
}
|
|
}
|
|
|
|
func fatal(err error, debug bool) {
|
|
if debug {
|
|
logger.Error(nil, fmt.Sprintf("%+v", err))
|
|
} else {
|
|
logger.Error(nil, fmt.Sprintf("%s", err))
|
|
}
|
|
os.Exit(1)
|
|
}
|