59 lines
1.6 KiB
Go
59 lines
1.6 KiB
Go
package null
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import (
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gossh "golang.org/x/crypto/ssh"
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"fmt"
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"github.com/mitchellh/multistep"
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"github.com/mitchellh/packer/communicator/ssh"
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"io/ioutil"
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)
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// SSHAddress returns a function that can be given to the SSH communicator
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// for determining the SSH address
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func SSHAddress(host string, port int) func(multistep.StateBag) (string, error) {
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return func(state multistep.StateBag) (string, error) {
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return fmt.Sprintf("%s:%d", host, port), nil
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}
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}
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// SSHConfig returns a function that can be used for the SSH communicator
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// config for connecting to the specified host via SSH
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// private_key_file has precedence over password!
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func SSHConfig(username string, password string, privateKeyFile string) func(multistep.StateBag) (*gossh.ClientConfig, error) {
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return func(state multistep.StateBag) (*gossh.ClientConfig, error) {
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if privateKeyFile != "" {
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// key based auth
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bytes, err := ioutil.ReadFile(privateKeyFile)
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if err != nil {
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return nil, fmt.Errorf("Error setting up SSH config: %s", err)
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}
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privateKey := string(bytes)
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signer, err := gossh.ParsePrivateKey([]byte(privateKey))
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if err != nil {
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return nil, fmt.Errorf("Error setting up SSH config: %s", err)
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}
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return &gossh.ClientConfig{
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User: username,
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Auth: []gossh.AuthMethod{
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gossh.PublicKeys(signer),
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},
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}, nil
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} else {
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// password based auth
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return &gossh.ClientConfig{
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User: username,
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Auth: []gossh.AuthMethod{
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gossh.Password(password),
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gossh.KeyboardInteractive(
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ssh.PasswordKeyboardInteractive(password)),
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},
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}, nil
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}
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}
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}
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