/
ca.go
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/
ca.go
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// Copyright (c) 2017 Pulcy.
//
// 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 (
"io/ioutil"
"strings"
"github.com/spf13/cobra"
)
var (
cmdCA = &cobra.Command{
Use: "ca",
Short: "Administrator commands to create CA's and issue certificates",
Run: showUsage,
PersistentPreRun: cmdCAPersistentPreRun,
}
cmdCACreate = &cobra.Command{
Use: "create",
Short: "Create a cluster specific CA",
Run: showUsage,
}
cmdCACreateETCD = &cobra.Command{
Use: "etcd",
Short: "Create vault CA that is to be used by ETCD members",
Run: cmdCACreateETCDRun,
}
cmdCACreateK8s = &cobra.Command{
Use: "k8s",
Short: "Create vault CA that is to be used by Kubernetes components",
Run: cmdCACreateK8sRun,
}
caFlags struct {
clusterID string
clusterIDFile string
force bool
component string
domainName string
}
)
func init() {
cmdMain.AddCommand(cmdCA)
cmdCA.AddCommand(cmdCACreate)
cmdCACreate.AddCommand(cmdCACreateETCD)
cmdCACreate.AddCommand(cmdCACreateK8s)
cmdCA.PersistentFlags().StringVar(&caFlags.clusterID, "cluster-id", "", "ID of the cluster to create a CA for")
cmdCA.PersistentFlags().StringVar(&caFlags.clusterIDFile, "cluster-id-file", "", "Path of the file containing cluster-id")
cmdCACreate.PersistentFlags().BoolVar(&caFlags.force, "force", false, "If set, existing mounts will be overwritten, revoking issues certificates")
cmdCACreate.PersistentFlags().StringVar(&caFlags.domainName, "domain", "", "Domain name of the cluster")
cmdCACreateK8s.Flags().StringVar(&caFlags.component, "component", "", "The Kubernetes component name to create a CA for")
}
func cmdCAPersistentPreRun(cmd *cobra.Command, args []string) {
if caFlags.clusterID == "" && caFlags.clusterIDFile != "" {
raw, err := ioutil.ReadFile(caFlags.clusterIDFile)
if err != nil {
Exitf("Failed to read %s: %#v\n", caFlags.clusterIDFile, err)
}
caFlags.clusterID = strings.TrimSpace(string(raw))
}
}
func cmdCACreateETCDRun(cmd *cobra.Command, args []string) {
assertArgIsSet(caFlags.clusterID, "cluster-id")
assertArgIsSet(caFlags.domainName, "domain")
_, c, err := adminLogin()
if err != nil {
Exitf("Login failed: %v", err)
}
ca := c.CA()
if err := ca.CreateETCDMembers(caFlags.clusterID, caFlags.domainName, caFlags.force); err != nil {
Exitf("Failed to create CA: %v", err)
}
}
func cmdCACreateK8sRun(cmd *cobra.Command, args []string) {
assertArgIsSet(caFlags.clusterID, "cluster-id")
assertArgIsSet(caFlags.domainName, "domain")
_, c, err := adminLogin()
if err != nil {
Exitf("Login failed: %v", err)
}
ca := c.CA()
if caFlags.component != "" {
if err := ca.CreateK8s(caFlags.clusterID, caFlags.component, caFlags.domainName, caFlags.force); err != nil {
Exitf("Failed to create CA: %v", err)
}
} else {
if err := ca.CreateK8sAll(caFlags.clusterID, caFlags.domainName, caFlags.force); err != nil {
Exitf("Failed to create CA's: %v", err)
}
}
}