46 lines
1.3 KiB
Go
46 lines
1.3 KiB
Go
package common
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import (
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gossh "code.google.com/p/go.crypto/ssh"
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"fmt"
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"github.com/mitchellh/goamz/ec2"
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"github.com/mitchellh/packer/communicator/ssh"
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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 based on the instance DNS name.
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func SSHAddress(port int) func(map[string]interface{}) (string, error) {
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return func(state map[string]interface{}) (string, error) {
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var host string
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instance := state["instance"].(*ec2.Instance)
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if instance.VpcId != "" {
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host = instance.PrivateIpAddress
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} else {
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host = instance.DNSName
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}
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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 instance created over SSH using the generated
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// private key.
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func SSHConfig(username string) func(map[string]interface{}) (*gossh.ClientConfig, error) {
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return func(state map[string]interface{}) (*gossh.ClientConfig, error) {
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privateKey := state["privateKey"].(string)
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keyring := new(ssh.SimpleKeychain)
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if err := keyring.AddPEMKey(privateKey); 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.ClientAuth{
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gossh.ClientAuthKeyring(keyring),
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},
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}, nil
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}
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}
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