89 lines
2.1 KiB
Go
89 lines
2.1 KiB
Go
package triton
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import (
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"fmt"
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packerssh "github.com/hashicorp/packer/communicator/ssh"
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"github.com/mitchellh/multistep"
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"golang.org/x/crypto/ssh"
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"golang.org/x/crypto/ssh/agent"
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"io/ioutil"
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"log"
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"net"
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"os"
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)
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func commHost(state multistep.StateBag) (string, error) {
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driver := state.Get("driver").(Driver)
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machineID := state.Get("machine").(string)
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machine, err := driver.GetMachineIP(machineID)
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if err != nil {
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return "", err
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}
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return machine, nil
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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 instance created over SSH using the private key
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// or password.
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func sshConfig(useAgent bool, username, privateKeyPath, password string) func(multistep.StateBag) (*ssh.ClientConfig, error) {
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return func(state multistep.StateBag) (*ssh.ClientConfig, error) {
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if useAgent {
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log.Println("Configuring SSH agent.")
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authSock := os.Getenv("SSH_AUTH_SOCK")
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if authSock == "" {
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return nil, fmt.Errorf("SSH_AUTH_SOCK is not set")
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}
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sshAgent, err := net.Dial("unix", authSock)
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if err != nil {
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return nil, fmt.Errorf("Cannot connect to SSH Agent socket %q: %s", authSock, err)
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}
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return &ssh.ClientConfig{
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User: username,
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Auth: []ssh.AuthMethod{
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ssh.PublicKeysCallback(agent.NewClient(sshAgent).Signers),
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},
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}, nil
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}
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hasKey := privateKeyPath != ""
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if hasKey {
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log.Printf("Configuring SSH private key '%s'.", privateKeyPath)
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privateKeyBytes, err := ioutil.ReadFile(privateKeyPath)
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if err != nil {
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return nil, fmt.Errorf("Unable to read SSH private key: %s", err)
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}
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signer, err := ssh.ParsePrivateKey(privateKeyBytes)
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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 &ssh.ClientConfig{
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User: username,
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Auth: []ssh.AuthMethod{
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ssh.PublicKeys(signer),
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},
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}, nil
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} else {
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log.Println("Configuring SSH keyboard interactive.")
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return &ssh.ClientConfig{
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User: username,
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Auth: []ssh.AuthMethod{
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ssh.Password(password),
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ssh.KeyboardInteractive(
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packerssh.PasswordKeyboardInteractive(password)),
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}}, nil
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}
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}
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}
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