func sshConfig(state map[string]interface{}) (*gossh.ClientConfig, error) {
config := state["config"].(config)
privateKey := state["privateKey"].(string)
keyring := new(ssh.SimpleKeychain)
if err := keyring.AddPEMKey(privateKey); err != nil {
return nil, fmt.Errorf("Error setting up SSH config: %s", err)
}
return &gossh.ClientConfig{
User: config.SSHUsername,
Auth: []gossh.ClientAuth{
gossh.ClientAuthKeyring(keyring),
},
}, nil
}
// sshConfig returns the ssh configuration.
func sshConfig(state multistep.StateBag) (*gossh.ClientConfig, error) {
config := state.Get("config").(*Config)
privateKey := state.Get("ssh_private_key").(string)
keyring := new(ssh.SimpleKeychain)
if err := keyring.AddPEMKey(privateKey); err != nil {
return nil, fmt.Errorf("Error setting up SSH config: %s", err)
}
sshConfig := &gossh.ClientConfig{
User: config.SSHUsername,
Auth: []gossh.ClientAuth{gossh.ClientAuthKeyring(keyring)},
}
return sshConfig, nil
}
// SSHConfig returns a function that can be used for the SSH communicator
// config for connecting to the instance created over SSH using the generated
// private key.
func SSHConfig(username string) func(multistep.StateBag) (*gossh.ClientConfig, error) {
return func(state multistep.StateBag) (*gossh.ClientConfig, error) {
privateKey := state.Get("privateKey").(string)
keyring := new(ssh.SimpleKeychain)
if err := keyring.AddPEMKey(privateKey); err != nil {
return nil, fmt.Errorf("Error setting up SSH config: %s", err)
}
return &gossh.ClientConfig{
User: username,
Auth: []gossh.ClientAuth{
gossh.ClientAuthKeyring(keyring),
},
}, nil
}
}
func sshKeyToKeyring(path string) (gossh.ClientKeyring, error) {
f, err := os.Open(path)
if err != nil {
return nil, err
}
defer f.Close()
keyBytes, err := ioutil.ReadAll(f)
if err != nil {
return nil, err
}
keyring := new(ssh.SimpleKeychain)
if err := keyring.AddPEMKey(string(keyBytes)); err != nil {
return nil, err
}
return keyring, nil
}
// SSHConfig returns a function that can be used for the SSH communicator
// config for connecting to the specified host via SSH
// private_key_file has precedence over password!
func SSHConfig(username string, password string, privateKeyFile string) func(multistep.StateBag) (*gossh.ClientConfig, error) {
return func(state multistep.StateBag) (*gossh.ClientConfig, error) {
if privateKeyFile != "" {
// key based auth
bytes, err := ioutil.ReadFile(privateKeyFile)
if err != nil {
return nil, fmt.Errorf("Error setting up SSH config: %s", err)
}
privateKey := string(bytes)
keyring := new(ssh.SimpleKeychain)
if err := keyring.AddPEMKey(privateKey); err != nil {
return nil, fmt.Errorf("Error setting up SSH config: %s", err)
}
return &gossh.ClientConfig{
User: username,
Auth: []gossh.ClientAuth{
gossh.ClientAuthKeyring(keyring),
},
}, nil
} else {
// password based auth
return &gossh.ClientConfig{
User: username,
Auth: []gossh.ClientAuth{
gossh.ClientAuthPassword(ssh.Password(password)),
gossh.ClientAuthKeyboardInteractive(ssh.PasswordKeyboardInteractive(password)),
},
}, nil
}
}
}