vendor files

vendor/k8s.io/kubernetes/cmd/kube-controller-manager/app/certificates.go

@@ -0,0 +1,120 @@
+/*
+Copyright 2016 The Kubernetes Authors.
+
+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 app implements a server that runs a set of active
+// components.  This includes replication controllers, service endpoints and
+// nodes.
+//
+package app
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/golang/glog"
+
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"k8s.io/kubernetes/cmd/kube-controller-manager/app/options"
+	"k8s.io/kubernetes/pkg/controller/certificates/approver"
+	"k8s.io/kubernetes/pkg/controller/certificates/cleaner"
+	"k8s.io/kubernetes/pkg/controller/certificates/signer"
+)
+
+func startCSRSigningController(ctx ControllerContext) (bool, error) {
+	if !ctx.AvailableResources[schema.GroupVersionResource{Group: "certificates.k8s.io", Version: "v1beta1", Resource: "certificatesigningrequests"}] {
+		return false, nil
+	}
+	if ctx.Options.ClusterSigningCertFile == "" || ctx.Options.ClusterSigningKeyFile == "" {
+		return false, nil
+	}
+
+	// Deprecation warning for old defaults.
+	//
+	// * If the signing cert and key are the default paths but the files
+	// exist, warn that the paths need to be specified explicitly in a
+	// later release and the defaults will be removed. We don't expect this
+	// to be the case.
+	//
+	// * If the signing cert and key are default paths but the files don't exist,
+	// bail out of startController without logging.
+	var keyFileExists, keyUsesDefault, certFileExists, certUsesDefault bool
+
+	_, err := os.Stat(ctx.Options.ClusterSigningCertFile)
+	certFileExists = !os.IsNotExist(err)
+
+	certUsesDefault = (ctx.Options.ClusterSigningCertFile == options.DefaultClusterSigningCertFile)
+
+	_, err = os.Stat(ctx.Options.ClusterSigningKeyFile)
+	keyFileExists = !os.IsNotExist(err)
+
+	keyUsesDefault = (ctx.Options.ClusterSigningKeyFile == options.DefaultClusterSigningKeyFile)
+
+	switch {
+	case (keyFileExists && keyUsesDefault) || (certFileExists && certUsesDefault):
+		glog.Warningf("You might be using flag defaulting for --cluster-signing-cert-file and" +
+			" --cluster-signing-key-file. These defaults are deprecated and will be removed" +
+			" in a subsequent release. Please pass these options explicitly.")
+	case (!keyFileExists && keyUsesDefault) && (!certFileExists && certUsesDefault):
+		// This is what we expect right now if people aren't
+		// setting up the signing controller. This isn't
+		// actually a problem since the signer is not a
+		// required controller.
+		return false, nil
+	default:
+		// Note that '!filesExist && !usesDefaults' is obviously
+		// operator error. We don't handle this case here and instead
+		// allow it to be handled by NewCSR... below.
+	}
+
+	c := ctx.ClientBuilder.ClientOrDie("certificate-controller")
+
+	signer, err := signer.NewCSRSigningController(
+		c,
+		ctx.InformerFactory.Certificates().V1beta1().CertificateSigningRequests(),
+		ctx.Options.ClusterSigningCertFile,
+		ctx.Options.ClusterSigningKeyFile,
+		ctx.Options.ClusterSigningDuration.Duration,
+	)
+	if err != nil {
+		return false, fmt.Errorf("failed to start certificate controller: %v", err)
+	}
+	go signer.Run(1, ctx.Stop)
+
+	return true, nil
+}
+
+func startCSRApprovingController(ctx ControllerContext) (bool, error) {
+	if !ctx.AvailableResources[schema.GroupVersionResource{Group: "certificates.k8s.io", Version: "v1beta1", Resource: "certificatesigningrequests"}] {
+		return false, nil
+	}
+
+	approver := approver.NewCSRApprovingController(
+		ctx.ClientBuilder.ClientOrDie("certificate-controller"),
+		ctx.InformerFactory.Certificates().V1beta1().CertificateSigningRequests(),
+	)
+	go approver.Run(1, ctx.Stop)
+
+	return true, nil
+}
+
+func startCSRCleanerController(ctx ControllerContext) (bool, error) {
+	cleaner := cleaner.NewCSRCleanerController(
+		ctx.ClientBuilder.ClientOrDie("certificate-controller").CertificatesV1beta1().CertificateSigningRequests(),
+		ctx.InformerFactory.Certificates().V1beta1().CertificateSigningRequests(),
+	)
+	go cleaner.Run(1, ctx.Stop)
+	return true, nil
+}