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package cert
import (
"errors"
"fmt"
"os"
"github.com/docker/machine/libmachine/auth"
"github.com/docker/machine/libmachine/log"
"github.com/docker/machine/libmachine/mcnutils"
)
func createCACert(authOptions *auth.Options, caOrg string, bits int) error {
caCertPath := authOptions.CaCertPath
caPrivateKeyPath := authOptions.CaPrivateKeyPath
log.Infof("Creating CA: %s", caCertPath)
// check if the key path exists; if so, error
if _, err := os.Stat(caPrivateKeyPath); err == nil {
return errors.New("certificate authority key already exists")
}
if err := GenerateCACertificate(caCertPath, caPrivateKeyPath, caOrg, bits); err != nil {
return fmt.Errorf("generating CA certificate failed: %s", err)
}
return nil
}
func createCert(authOptions *auth.Options, org string, bits int) error {
certDir := authOptions.CertDir
caCertPath := authOptions.CaCertPath
caPrivateKeyPath := authOptions.CaPrivateKeyPath
clientCertPath := authOptions.ClientCertPath
clientKeyPath := authOptions.ClientKeyPath
log.Infof("Creating client certificate: %s", clientCertPath)
if _, err := os.Stat(certDir); err != nil {
if os.IsNotExist(err) {
if err := os.Mkdir(certDir, 0700); err != nil {
return fmt.Errorf("failure creating machine client cert dir: %s", err)
}
} else {
return err
}
}
// check if the key path exists; if so, error
if _, err := os.Stat(clientKeyPath); err == nil {
return errors.New("client key already exists")
}
// Used to generate the client certificate.
certOptions := &Options{
Hosts: []string{""},
CertFile: clientCertPath,
KeyFile: clientKeyPath,
CAFile: caCertPath,
CAKeyFile: caPrivateKeyPath,
Org: org,
Bits: bits,
SwarmMaster: false,
}
if err := GenerateCert(certOptions); err != nil {
return fmt.Errorf("failure generating client certificate: %s", err)
}
return nil
}
func BootstrapCertificates(authOptions *auth.Options) error {
certDir := authOptions.CertDir
caCertPath := authOptions.CaCertPath
clientCertPath := authOptions.ClientCertPath
clientKeyPath := authOptions.ClientKeyPath
caPrivateKeyPath := authOptions.CaPrivateKeyPath
// TODO: I'm not super happy about this use of "org", the user should
// have to specify it explicitly instead of implicitly basing it on
// $USER.
caOrg := mcnutils.GetUsername()
org := caOrg + ".<bootstrap>"
bits := 2048
if _, err := os.Stat(certDir); err != nil {
if os.IsNotExist(err) {
if err := os.MkdirAll(certDir, 0700); err != nil {
return fmt.Errorf("creating machine certificate dir failed: %s", err)
}
} else {
return err
}
}
if _, err := os.Stat(caCertPath); os.IsNotExist(err) {
if err := createCACert(authOptions, caOrg, bits); err != nil {
return err
}
} else {
current, err := CheckCertificateDate(caCertPath)
if err != nil {
return err
}
if !current {
log.Info("CA certificate is outdated and needs to be regenerated")
os.Remove(caPrivateKeyPath)
if err := createCACert(authOptions, caOrg, bits); err != nil {
return err
}
}
}
if _, err := os.Stat(clientCertPath); os.IsNotExist(err) {
if err := createCert(authOptions, org, bits); err != nil {
return err
}
} else {
current, err := CheckCertificateDate(clientCertPath)
if err != nil {
return err
}
if !current {
log.Info("Client certificate is outdated and needs to be regenerated")
os.Remove(clientKeyPath)
if err := createCert(authOptions, org, bits); err != nil {
return err
}
}
}
return nil
}
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