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main.go
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main.go
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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"
"os"
"time"
clientset "github.com/apache/submarine/submarine-cloud-v2/pkg/client/clientset/versioned"
informers "github.com/apache/submarine/submarine-cloud-v2/pkg/client/informers/externalversions"
"github.com/apache/submarine/submarine-cloud-v2/pkg/controller"
"github.com/apache/submarine/submarine-cloud-v2/pkg/signals"
kubeinformers "k8s.io/client-go/informers"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/rest"
"k8s.io/client-go/tools/clientcmd"
"k8s.io/klog/v2"
// traefikclientset "github.com/traefik/traefik/v2/pkg/provider/kubernetes/crd/generated/clientset/versioned"
// traefikinformers "github.com/traefik/traefik/v2/pkg/provider/kubernetes/crd/generated/informers/externalversions"
istioClientset "istio.io/client-go/pkg/clientset/versioned"
istioInformers "istio.io/client-go/pkg/informers/externalversions"
)
var (
masterURL string
kubeconfig string
incluster bool
clusterType string
createPodSecurityPolicy bool
)
func initKubeConfig() (*rest.Config, error) {
if !incluster {
return clientcmd.BuildConfigFromFlags(masterURL, kubeconfig) // out-of-cluster config
}
return rest.InClusterConfig() // in-cluster config
}
func main() {
klog.InitFlags(nil)
flag.Parse()
// set up signals so we handle the first shutdown signal gracefully
stopCh := signals.SetupSignalHandler()
cfg, err := initKubeConfig()
if err != nil {
klog.Fatalf("Error building kubeconfig: %s", err.Error())
}
kubeClient, err := kubernetes.NewForConfig(cfg)
if err != nil {
klog.Fatalf("Error building kubernetes clientset: %s", err.Error())
}
submarineClient, err := clientset.NewForConfig(cfg)
if err != nil {
klog.Fatalf("Error building submarine clientset: %s", err.Error())
}
/*
traefikClient, err := traefikclientset.NewForConfig(cfg)
if err != nil {
klog.Fatalf("Error building traefik clientset: %s", err.Error())
}
*/
istioClient, err := istioClientset.NewForConfig(cfg)
if err != nil {
klog.Fatalf("Error building istio clientset: %s", err.Error())
}
kubeInformerFactory := kubeinformers.NewSharedInformerFactory(kubeClient, time.Second*30)
submarineInformerFactory := informers.NewSharedInformerFactory(submarineClient, time.Second*30)
// traefikInformerFactory := traefikinformers.NewSharedInformerFactory(traefikClient, time.Second*30)
istioInformerFactory := istioInformers.NewSharedInformerFactory(istioClient, time.Second*30)
// TODO: Pass informers to NewController()
// ex: namespace informer
// Create a Submarine operator
submarineController := NewSubmarineController(
incluster,
clusterType,
createPodSecurityPolicy,
kubeClient,
submarineClient,
// traefikClient,
istioClient,
kubeInformerFactory,
submarineInformerFactory,
// traefikInformerFactory,
istioInformerFactory,
)
// notice that there is no need to run Start methods in a separate goroutine. (i.e. go kubeInformerFactory.Start(stopCh)
// Start method is non-blocking and runs all registered informers in a dedicated goroutine.
kubeInformerFactory.Start(stopCh)
submarineInformerFactory.Start(stopCh)
// traefikInformerFactory.Start(stopCh)
istioInformerFactory.Start(stopCh)
// Run controller
if err = submarineController.Run(1, stopCh); err != nil {
klog.Fatalf("Error running controller: %s", err.Error())
}
}
func NewSubmarineController(
incluster bool,
clusterType string,
createPodSecurityPolicy bool,
kubeClient *kubernetes.Clientset,
submarineClient *clientset.Clientset,
// traefikClient *traefikclientset.Clientset,
istioClient *istioClientset.Clientset,
kubeInformerFactory kubeinformers.SharedInformerFactory,
submarineInformerFactory informers.SharedInformerFactory,
// traefikInformerFactory traefikinformers.SharedInformerFactory,
istioInformerFactory istioInformers.SharedInformerFactory,
) *controller.Controller {
bc := controller.NewControllerBuilderConfig()
bc.
InCluster(incluster).
WithClusterType(clusterType).
WithCreatePodSecurityPolicy(createPodSecurityPolicy).
WithKubeClientset(kubeClient).
WithSubmarineClientset(submarineClient).
// WithTraefikClientset(traefikClient).
WithVirtualServiceClientset(istioClient).
WithSubmarineInformer(submarineInformerFactory.Submarine().V1alpha1().Submarines()).
WithDeploymentInformer(kubeInformerFactory.Apps().V1().Deployments()).
WithStatefulSetInformer(kubeInformerFactory.Apps().V1().StatefulSets()).
WithNamespaceInformer(kubeInformerFactory.Core().V1().Namespaces()).
WithServiceInformer(kubeInformerFactory.Core().V1().Services()).
WithServiceAccountInformer(kubeInformerFactory.Core().V1().ServiceAccounts()).
WithPersistentVolumeClaimInformer(kubeInformerFactory.Core().V1().PersistentVolumeClaims()).
WithConfigMapClaimInformer(kubeInformerFactory.Core().V1().ConfigMaps()).
WithIngressInformer(kubeInformerFactory.Extensions().V1beta1().Ingresses()).
// WithIngressRouteInformer(traefikInformerFactory.Traefik().V1alpha1().IngressRoutes()).
WithVirtualServiceInformer(istioInformerFactory.Networking().V1alpha3().VirtualServices()).
WithRoleInformer(kubeInformerFactory.Rbac().V1().Roles()).
WithRoleBindingInformer(kubeInformerFactory.Rbac().V1().RoleBindings())
return controller.NewControllerBuilder(bc).Build()
}
func init() {
flag.BoolVar(&incluster, "incluster", false, "Run submarine-operator in-cluster")
flag.StringVar(&kubeconfig, "kubeconfig", os.Getenv("HOME")+"/.kube/config", "Path to a kubeconfig. Only required if out-of-cluster.")
flag.StringVar(&masterURL, "master", "", "The address of the Kubernetes API server. Overrides any value in kubeconfig. Only required if out-of-cluster.")
flag.StringVar(&clusterType, "clustertype", "kubernetes", "K8s cluster type, can be kubernetes or openshift")
flag.BoolVar(&createPodSecurityPolicy, "createpsp", true, "Specifies whether a PodSecurityPolicy should be created. This configuration enables the database/minio/server to set securityContext.runAsUser")
}