Example #1
0
func doSetupSSH(configModel config.MachineConfigModel) (config.SSHConfigModel, error) {
	log.Infoln("==> doSetupSSH")
	sshConfigModel := config.SSHConfigModel{}

	// Read `vagrant ssh-config` log/output
	outputs, err := utils.RunAndReturnCombinedOutput(MachineWorkdir.Get(), configModel.AllCmdEnvsForConfigType(MachineConfigTypeID.Get()), "vagrant", "ssh-config")
	if err != nil {
		log.Errorf("'vagrant ssh-config' failed with output: %s", outputs)
		return sshConfigModel, err
	}
	log.Debugln("===> (raw) vagrant ssh-config retrieved")

	// Convert `vagrant ssh-config` to our SSHConfigModel
	sshConfigModel, err = config.CreateSSHConfigFromVagrantSSHConfigLog(outputs)
	if err != nil {
		log.Errorf("'vagrant ssh-config' returned an invalid output (failed to scan SSH Config): %s", outputs)
		return sshConfigModel, err
	}
	log.Debugln("===> vagrant ssh-config parsed")

	// Generate SSH Keypair
	privBytes, pubBytes, err := utils.GenerateSSHKeypair()
	if err != nil {
		return sshConfigModel, err
	}
	log.Debugln("===> SSH Keypair generated")

	// Write the SSH Keypair to file
	privKeyFilePth, _, err := config.WriteSSHKeypairToFiles(MachineWorkdir.Get(), privBytes, pubBytes)
	if err != nil {
		return sshConfigModel, err
	}
	log.Debugln("===> SSH Keypair written to file")

	// Replace the ~/.ssh/authorized_keys inside the VM to only allow
	//  the new keypair
	replaceAuthKeysCmd := fmt.Sprintf(`printf "%s" > ~/.ssh/authorized_keys`, pubBytes)
	log.Debugf("===> Running command through SSH: %s", replaceAuthKeysCmd)
	if err := utils.RunCommandThroughSSH(sshConfigModel, replaceAuthKeysCmd); err != nil {
		return sshConfigModel, err
	}
	log.Debugln("===> SSH Keypair is now authorized to access the VM")

	// Save private key as the new identity
	sshConfigModel.IdentityPath = privKeyFilePth
	if err := sshConfigModel.WriteIntoFileInDir(MachineWorkdir.Get()); err != nil {
		return sshConfigModel, err
	}
	log.Debugln("===> New identity (private SSH key) saved into config in workdir")

	log.Debugln("==> doSetupSSH [done]")
	return sshConfigModel, nil
}
Example #2
0
// doTimesync generates an appropriately formatted
//  time string, then calls `sudo date` through SSH
// This is required for Virtual Machines which are
//  simply rolled back to a snapshot state which might
//  mess up the VM's time (restores it to the snapshot time)
func doTimesync(sshConfigModel config.SSHConfigModel) error {
	log.Infoln("==> doTimesync")

	const layout = "2006-01-02 15:04:05 MST"
	timeNow := time.Now()
	timeAsString := timeNow.UTC().Format(layout)
	// THIS ONLY WORKS ON OSX VM!!
	timeSyncCmd := fmt.Sprintf("%s %s",
		`sudo date -uf "%Y-%m-%d %H:%M:%S UTC"`,
		`"`+timeAsString+`"`)
	log.Infoln("timeSyncCmd: ", timeSyncCmd)

	if err := utils.RunCommandThroughSSH(sshConfigModel, timeSyncCmd); err != nil {
		return err
	}

	return nil
}