packer-cn/builder/scaleway/ssh.go

62 lines
1.5 KiB
Go

package scaleway
import (
"fmt"
"net"
"os"
packerssh "github.com/hashicorp/packer/communicator/ssh"
"github.com/hashicorp/packer/helper/multistep"
"golang.org/x/crypto/ssh"
"golang.org/x/crypto/ssh/agent"
)
func commHost(state multistep.StateBag) (string, error) {
ipAddress := state.Get("server_ip").(string)
return ipAddress, nil
}
func sshConfig(state multistep.StateBag) (*ssh.ClientConfig, error) {
config := state.Get("config").(Config)
var auth []ssh.AuthMethod
if config.Comm.SSHAgentAuth {
authSock := os.Getenv("SSH_AUTH_SOCK")
if authSock == "" {
return nil, fmt.Errorf("SSH_AUTH_SOCK is not set")
}
sshAgent, err := net.Dial("unix", authSock)
if err != nil {
return nil, fmt.Errorf("Cannot connect to SSH Agent socket %q: %s", authSock, err)
}
auth = []ssh.AuthMethod{
ssh.PublicKeysCallback(agent.NewClient(sshAgent).Signers),
}
}
if config.Comm.SSHPassword != "" {
auth = append(auth,
ssh.Password(config.Comm.SSHPassword),
ssh.KeyboardInteractive(
packerssh.PasswordKeyboardInteractive(config.Comm.SSHPassword)),
)
}
// Use key based auth if there is a private key in the state bag
if privateKey, ok := state.GetOk("private_key"); ok {
signer, err := ssh.ParsePrivateKey([]byte(privateKey.(string)))
if err != nil {
return nil, fmt.Errorf("Error setting up SSH config: %s", err)
}
auth = append(auth, ssh.PublicKeys(signer))
}
return &ssh.ClientConfig{
User: config.Comm.SSHUsername,
Auth: auth,
HostKeyCallback: ssh.InsecureIgnoreHostKey(),
}, nil
}