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create_mastercerts.go
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/
create_mastercerts.go
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package admin
import (
"errors"
"fmt"
"io"
"path"
"path/filepath"
"github.com/golang/glog"
"github.com/spf13/cobra"
"github.com/GoogleCloudPlatform/kubernetes/pkg/util"
)
const CreateMasterCertsCommandName = "create-master-certs"
type CreateMasterCertsOptions struct {
CertDir string
SignerName string
Hostnames util.StringList
APIServerURL string
PublicAPIServerURL string
Overwrite bool
}
func NewCommandCreateMasterCerts(commandName string, fullName string, out io.Writer) *cobra.Command {
options := &CreateMasterCertsOptions{}
cmd := &cobra.Command{
Use: commandName,
Short: "Create all certificates for an OpenShift master. To create node certificates, try openshift admin create-node-config",
Run: func(c *cobra.Command, args []string) {
if err := options.Validate(args); err != nil {
fmt.Fprintln(c.Out(), err.Error())
c.Help()
return
}
if err := options.CreateMasterCerts(); err != nil {
glog.Fatal(err)
}
},
}
cmd.SetOutput(out)
flags := cmd.Flags()
flags.StringVar(&options.CertDir, "cert-dir", "openshift.local.certificates", "The certificate data directory.")
flags.StringVar(&options.SignerName, "signer-name", DefaultSignerName(), "The name to use for the generated signer.")
flags.StringVar(&options.APIServerURL, "master", "https://localhost:8443", "The API server's URL.")
flags.StringVar(&options.PublicAPIServerURL, "public-master", "", "The API public facing server's URL (if applicable).")
flags.Var(&options.Hostnames, "hostnames", "Every hostname or IP you want server certs to be valid for. Comma delimited list")
flags.BoolVar(&options.Overwrite, "overwrite", true, "Overwrite existing cert files if found. If false, any existing file will be left as-is.")
return cmd
}
func (o CreateMasterCertsOptions) Validate(args []string) error {
if len(args) != 0 {
return errors.New("no arguments are supported")
}
if len(o.Hostnames) == 0 {
return errors.New("at least one hostname must be provided")
}
if len(o.CertDir) == 0 {
return errors.New("cert-dir must be provided")
}
if len(o.SignerName) == 0 {
return errors.New("signer-name must be provided")
}
if len(o.APIServerURL) == 0 {
return errors.New("master must be provided")
}
return nil
}
func (o CreateMasterCertsOptions) CreateMasterCerts() error {
glog.V(2).Infof("Creating all certs with: %#v", o)
signerCertOptions := CreateSignerCertOptions{
CertFile: DefaultCertFilename(o.CertDir, DefaultCADir),
KeyFile: DefaultKeyFilename(o.CertDir, DefaultCADir),
SerialFile: DefaultSerialFilename(o.CertDir, DefaultCADir),
Name: o.SignerName,
Overwrite: o.Overwrite,
}
if err := signerCertOptions.Validate(nil); err != nil {
return err
}
if _, err := signerCertOptions.CreateSignerCert(); err != nil {
return err
}
// once we've minted the signer, don't overwrite it
getSignerCertOptions := GetSignerCertOptions{
CertFile: DefaultCertFilename(o.CertDir, DefaultCADir),
KeyFile: DefaultKeyFilename(o.CertDir, DefaultCADir),
SerialFile: DefaultSerialFilename(o.CertDir, DefaultCADir),
}
for _, clientCertInfo := range DefaultClientCerts(o.CertDir) {
clientCertOptions := CreateClientCertOptions{
GetSignerCertOptions: &getSignerCertOptions,
CertFile: clientCertInfo.CertLocation.CertFile,
KeyFile: clientCertInfo.CertLocation.KeyFile,
User: clientCertInfo.User,
Groups: util.StringList(clientCertInfo.Groups.List()),
Overwrite: o.Overwrite,
}
if err := clientCertOptions.Validate(nil); err != nil {
return err
}
if _, err := clientCertOptions.CreateClientCert(); err != nil {
return err
}
createKubeConfigOptions := CreateKubeConfigOptions{
APIServerURL: o.APIServerURL,
PublicAPIServerURL: o.PublicAPIServerURL,
APIServerCAFile: getSignerCertOptions.CertFile,
ServerNick: "master",
CertFile: clientCertInfo.CertLocation.CertFile,
KeyFile: clientCertInfo.CertLocation.KeyFile,
UserNick: clientCertInfo.SubDir,
KubeConfigFile: path.Join(filepath.Dir(clientCertOptions.CertFile), ".kubeconfig"),
}
if err := createKubeConfigOptions.Validate(nil); err != nil {
return err
}
if _, err := createKubeConfigOptions.CreateKubeConfig(); err != nil {
return err
}
}
for _, serverCertInfo := range DefaultServerCerts(o.CertDir) {
serverCertOptions := CreateServerCertOptions{
GetSignerCertOptions: &getSignerCertOptions,
CertFile: serverCertInfo.CertFile,
KeyFile: serverCertInfo.KeyFile,
Hostnames: o.Hostnames,
Overwrite: o.Overwrite,
}
if err := serverCertOptions.Validate(nil); err != nil {
return err
}
if _, err := serverCertOptions.CreateServerCert(); err != nil {
return err
}
}
return nil
}