implement kubectl procelain csr commands

hack/make-rules/test-cmd.sh

@@ -2884,6 +2884,44 @@ __EOF__
   # Post-condition: valid-pod doesn't exist
   kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" ''
 
+  ################
+  # Certificates #
+  ################
+
+  # approve
+  kubectl create -f hack/testdata/csr.yml "${kube_flags[@]}"
+  kube::test::get_object_assert 'csr/foo' '{{range.status.conditions}}{{.type}}{{end}}' ''
+  kubectl certificate approve foo "${kube_flags[@]}"
+  kubectl get csr "${kube_flags[@]}" -o json
+  kube::test::get_object_assert 'csr/foo' '{{range.status.conditions}}{{.type}}{{end}}' 'Approved'
+  kubectl delete -f hack/testdata/csr.yml "${kube_flags[@]}"
+  kube::test::get_object_assert csr "{{range.items}}{{$id_field}}{{end}}" ''
+
+  kubectl create -f hack/testdata/csr.yml "${kube_flags[@]}"
+  kube::test::get_object_assert 'csr/foo' '{{range.status.conditions}}{{.type}}{{end}}' ''
+  kubectl certificate approve -f hack/testdata/csr.yml "${kube_flags[@]}"
+  kubectl get csr "${kube_flags[@]}" -o json
+  kube::test::get_object_assert 'csr/foo' '{{range.status.conditions}}{{.type}}{{end}}' 'Approved'
+  kubectl delete -f hack/testdata/csr.yml "${kube_flags[@]}"
+  kube::test::get_object_assert csr "{{range.items}}{{$id_field}}{{end}}" ''
+
+  # deny
+  kubectl create -f hack/testdata/csr.yml "${kube_flags[@]}"
+  kube::test::get_object_assert 'csr/foo' '{{range.status.conditions}}{{.type}}{{end}}' ''
+  kubectl certificate deny foo "${kube_flags[@]}"
+  kubectl get csr "${kube_flags[@]}" -o json
+  kube::test::get_object_assert 'csr/foo' '{{range.status.conditions}}{{.type}}{{end}}' 'Denied'
+  kubectl delete -f hack/testdata/csr.yml "${kube_flags[@]}"
+  kube::test::get_object_assert csr "{{range.items}}{{$id_field}}{{end}}" ''
+
+  kubectl create -f hack/testdata/csr.yml "${kube_flags[@]}"
+  kube::test::get_object_assert 'csr/foo' '{{range.status.conditions}}{{.type}}{{end}}' ''
+  kubectl certificate deny -f hack/testdata/csr.yml "${kube_flags[@]}"
+  kubectl get csr "${kube_flags[@]}" -o json
+  kube::test::get_object_assert 'csr/foo' '{{range.status.conditions}}{{.type}}{{end}}' 'Denied'
+  kubectl delete -f hack/testdata/csr.yml "${kube_flags[@]}"
+  kube::test::get_object_assert csr "{{range.items}}{{$id_field}}{{end}}" ''
+
   kube::test::clear_all
 }
 

hack/testdata/csr.yml

@@ -0,0 +1,6 @@
+apiVersion: certificates.k8s.io/v1alpha1
+kind: CertificateSigningRequest
+metadata:
+  name: foo
+spec:
+  request: 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

pkg/kubectl/cmd/BUILD

@@ -18,6 +18,7 @@ go_library(
         "apply.go",
         "attach.go",
         "autoscale.go",
+        "certificates.go",
         "clusterinfo.go",
         "clusterinfo_dump.go",
         "cmd.go",
@@ -69,6 +70,7 @@ go_library(
         "//pkg/api/validation:go_default_library",
         "//pkg/apimachinery/registered:go_default_library",
         "//pkg/apis/batch/v1:go_default_library",
+        "//pkg/apis/certificates:go_default_library",
         "//pkg/apis/extensions/v1beta1:go_default_library",
         "//pkg/client/clientset_generated/internalclientset:go_default_library",
         "//pkg/client/clientset_generated/internalclientset/typed/core/internalversion:go_default_library",

pkg/kubectl/cmd/certificates.go

@@ -0,0 +1,196 @@
+/*
+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 cmd
+
+import (
+	"fmt"
+	"io"
+
+	"k8s.io/kubernetes/pkg/api/unversioned"
+	"k8s.io/kubernetes/pkg/apis/certificates"
+	"k8s.io/kubernetes/pkg/kubectl/cmd/templates"
+	cmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
+	"k8s.io/kubernetes/pkg/kubectl/resource"
+
+	"github.com/spf13/cobra"
+)
+
+func NewCmdCertificate(f cmdutil.Factory, out io.Writer) *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "certificate SUBCOMMAND",
+		Short: "Modify certificate resources.",
+		Run: func(cmd *cobra.Command, args []string) {
+			cmd.Help()
+		},
+	}
+
+	cmd.AddCommand(NewCmdCertificateApprove(f, out))
+	cmd.AddCommand(NewCmdCertificateDeny(f, out))
+
+	return cmd
+}
+
+type CertificateOptions struct {
+	resource.FilenameOptions
+	csrNames    []string
+	outputStyle string
+}
+
+func (options *CertificateOptions) Complete(cmd *cobra.Command, args []string) error {
+	options.csrNames = args
+	options.outputStyle = cmdutil.GetFlagString(cmd, "output")
+	return nil
+}
+
+func (options *CertificateOptions) Validate() error {
+	if len(options.csrNames) < 1 && cmdutil.IsFilenameEmpty(options.Filenames) {
+		return fmt.Errorf("one or more CSRs must be specified as <name> or -f <filename>")
+	}
+	return nil
+}
+
+func NewCmdCertificateApprove(f cmdutil.Factory, out io.Writer) *cobra.Command {
+	options := CertificateOptions{}
+	cmd := &cobra.Command{
+		Use:   "approve (-f FILENAME | NAME)",
+		Short: "Approve a certificate signing request",
+		Long: templates.LongDesc(`
+		Approve a certificate signing request.
+
+		kubectl certificate approve allows a cluster admin to approve a certificate
+		signing request (CSR). This action tells a certificate signing controller to
+		issue a certificate to the requestor with the attributes requested in the CSR.
+
+		SECURITY NOTICE: Depending on the requested attributes, the issued certificate
+		can potentially grant a requester access to cluster resources or to authenticate
+		as a requested identity. Before approving a CSR, ensure you understand what the
+		signed certificate can do.
+		`),
+		Run: func(cmd *cobra.Command, args []string) {
+			cmdutil.CheckErr(options.Complete(cmd, args))
+			cmdutil.CheckErr(options.Validate())
+			cmdutil.CheckErr(options.RunCertificateApprove(f, out))
+		},
+	}
+	cmdutil.AddOutputFlagsForMutation(cmd)
+	cmdutil.AddFilenameOptionFlags(cmd, &options.FilenameOptions, "identifying the resource to update")
+
+	return cmd
+}
+
+func (options *CertificateOptions) RunCertificateApprove(f cmdutil.Factory, out io.Writer) error {
+	return options.modifyCertificateCondition(f, out, func(csr *certificates.CertificateSigningRequest) (*certificates.CertificateSigningRequest, string) {
+		var alreadyApproved bool
+		for _, c := range csr.Status.Conditions {
+			if c.Type == certificates.CertificateApproved {
+				alreadyApproved = true
+			}
+		}
+		if alreadyApproved {
+			return csr, "approved"
+		}
+		csr.Status.Conditions = append(csr.Status.Conditions, certificates.CertificateSigningRequestCondition{
+			Type:           certificates.CertificateApproved,
+			Reason:         "KubectlApprove",
+			Message:        "This CSR was approved by kubectl certificate approve.",
+			LastUpdateTime: unversioned.Now(),
+		})
+		return csr, "approved"
+	})
+}
+
+func NewCmdCertificateDeny(f cmdutil.Factory, out io.Writer) *cobra.Command {
+	options := CertificateOptions{}
+	cmd := &cobra.Command{
+		Use:   "deny (-f FILENAME | NAME)",
+		Short: "Deny a certificate signing request",
+		Long: templates.LongDesc(`
+		Deny a certificate signing request.
+
+		kubectl certificate deny allows a cluster admin to deny a certificate
+		signing request (CSR). This action tells a certificate signing controller to
+		not to issue a certificate to the requestor.
+		`),
+		Run: func(cmd *cobra.Command, args []string) {
+			cmdutil.CheckErr(options.Complete(cmd, args))
+			cmdutil.CheckErr(options.Validate())
+			cmdutil.CheckErr(options.RunCertificateDeny(f, out))
+		},
+	}
+	cmdutil.AddOutputFlagsForMutation(cmd)
+	cmdutil.AddFilenameOptionFlags(cmd, &options.FilenameOptions, "identifying the resource to update")
+
+	return cmd
+}
+
+func (options *CertificateOptions) RunCertificateDeny(f cmdutil.Factory, out io.Writer) error {
+	return options.modifyCertificateCondition(f, out, func(csr *certificates.CertificateSigningRequest) (*certificates.CertificateSigningRequest, string) {
+		var alreadyDenied bool
+		for _, c := range csr.Status.Conditions {
+			if c.Type == certificates.CertificateDenied {
+				alreadyDenied = true
+			}
+		}
+		if alreadyDenied {
+			return csr, "denied"
+		}
+		csr.Status.Conditions = append(csr.Status.Conditions, certificates.CertificateSigningRequestCondition{
+			Type:           certificates.CertificateDenied,
+			Reason:         "KubectlDeny",
+			Message:        "This CSR was approved by kubectl certificate deny.",
+			LastUpdateTime: unversioned.Now(),
+		})
+		return csr, "denied"
+	})
+}
+
+func (options *CertificateOptions) modifyCertificateCondition(f cmdutil.Factory, out io.Writer, modify func(csr *certificates.CertificateSigningRequest) (*certificates.CertificateSigningRequest, string)) error {
+	var found int
+	mapper, typer := f.Object()
+	c, err := f.ClientSet()
+	if err != nil {
+		return err
+	}
+	r := resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.ClientForMapping), f.Decoder(true)).
+		ContinueOnError().
+		FilenameParam(false, &options.FilenameOptions).
+		ResourceNames("certificatesigningrequest", options.csrNames...).
+		RequireObject(true).
+		Flatten().
+		Latest().
+		Do()
+	err = r.Visit(func(info *resource.Info, err error) error {
+		if err != nil {
+			return err
+		}
+		csr := info.Object.(*certificates.CertificateSigningRequest)
+		csr, verb := modify(csr)
+		csr, err = c.Certificates().
+			CertificateSigningRequests().
+			UpdateApproval(csr)
+		if err != nil {
+			return err
+		}
+		found++
+		cmdutil.PrintSuccess(mapper, options.outputStyle == "name", out, info.Mapping.Resource, info.Name, false, verb)
+		return nil
+	})
+	if found == 0 {
+		fmt.Fprintf(out, "No resources found\n")
+	}
+	return err
+}

pkg/kubectl/cmd/cmd.go

@@ -251,6 +251,7 @@ func NewKubectlCommand(f cmdutil.Factory, in io.Reader, out, err io.Writer) *cob
 		{
 			Message: "Cluster Management Commands:",
 			Commands: []*cobra.Command{
+				NewCmdCertificate(f, out),
 				NewCmdClusterInfo(f, out),
 				NewCmdTop(f, out, err),
 				NewCmdCordon(f, out),