119 lines
3.4 KiB
Go
119 lines
3.4 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package main
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import (
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"flag"
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"fmt"
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"time"
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"k8s.io/client-go/informers"
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"k8s.io/client-go/kubernetes"
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_ "k8s.io/client-go/plugin/pkg/client/auth"
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rest "k8s.io/client-go/rest"
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"k8s.io/client-go/tools/clientcmd"
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_ "github.com/munnerz/cert-manager/pkg/apis/certmanager/install"
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"github.com/munnerz/cert-manager/pkg/client"
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"github.com/munnerz/cert-manager/pkg/controller"
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"github.com/munnerz/cert-manager/pkg/controller/certificates"
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"github.com/munnerz/cert-manager/pkg/controller/issuers"
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"github.com/munnerz/cert-manager/pkg/informers/externalversions"
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logpkg "github.com/munnerz/cert-manager/pkg/log"
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)
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var (
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apiServerHost = flag.String("apiserver", "", "optional API server host address")
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namespace = flag.String("namespace", "", "optional namespace to operate within")
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)
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func main() {
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flag.Parse()
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log := logpkg.Default()
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cfg, err := kubeConfig(*apiServerHost)
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if err != nil {
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log.Fatalf("error getting in-cluster config: %s", err.Error())
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}
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cl, err := kubernetes.NewForConfig(cfg)
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if err != nil {
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log.Fatalf("error creating kubernetes clientset: %s", err.Error())
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}
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factory := informers.NewSharedInformerFactory(cl, time.Second*30)
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cmCl, err := client.NewForConfig(cfg)
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if err != nil {
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log.Fatalf("error creating cert-manager clientset: %s", err.Error())
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}
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cmFactory := externalversions.NewSharedInformerFactory(cmCl, time.Second*30)
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ctx := controller.Context{
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Client: cl,
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CertManagerClient: cmCl,
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InformerFactory: factory,
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CertManagerInformerFactory: cmFactory,
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Namespace: *namespace,
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Logger: log,
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}
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issuerCtrl := issuers.New(ctx)
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certificatesCtrl := certificates.New(ctx)
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stopCh := make(chan struct{})
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factory.Start(stopCh)
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cmFactory.Start(stopCh)
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go issuerCtrl.Run(5, stopCh)
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go certificatesCtrl.Run(5, stopCh)
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<-stopCh
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}
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// kubeConfig will return a rest.Config for communicating with the Kubernetes API server.
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// If apiServerHost is specified, a config without authentication that is configured
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// to talk to the apiServerHost URL will be returned. Else, the in-cluster config will be loaded,
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// and failing this, the config will be loaded from the users local kubeconfig directory
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func kubeConfig(apiServerHost string) (*rest.Config, error) {
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var err error
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var cfg *rest.Config
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if len(apiServerHost) > 0 {
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cfg = new(rest.Config)
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cfg.Host = apiServerHost
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} else if cfg, err = rest.InClusterConfig(); err != nil {
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apiCfg, err := clientcmd.NewDefaultClientConfigLoadingRules().Load()
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if err != nil {
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return nil, fmt.Errorf("error loading cluster config: %s", err.Error())
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}
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cfg, err = clientcmd.NewDefaultClientConfig(*apiCfg, &clientcmd.ConfigOverrides{}).ClientConfig()
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if err != nil {
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return nil, fmt.Errorf("error loading cluster client config: %s", err.Error())
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}
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}
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return cfg, nil
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}
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