-
Notifications
You must be signed in to change notification settings - Fork 3.3k
/
ssh_config.go
77 lines (64 loc) · 1.88 KB
/
ssh_config.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
package common
import (
"errors"
"fmt"
"net"
"os"
"time"
"github.com/mitchellh/packer/packer"
)
type SSHConfig struct {
SSHUser string `mapstructure:"ssh_username"`
SSHKeyPath string `mapstructure:"ssh_key_path"`
SSHPassword string `mapstructure:"ssh_password"`
SSHHost string `mapstructure:"ssh_host"`
SSHPort uint `mapstructure:"ssh_port"`
SSHSkipRequestPty bool `mapstructure:"ssh_skip_request_pty"`
RawSSHWaitTimeout string `mapstructure:"ssh_wait_timeout"`
SSHWaitTimeout time.Duration
}
func (c *SSHConfig) Prepare(t *packer.ConfigTemplate) []error {
if c.SSHPort == 0 {
c.SSHPort = 22
}
if c.RawSSHWaitTimeout == "" {
c.RawSSHWaitTimeout = "20m"
}
templates := map[string]*string{
"ssh_key_path": &c.SSHKeyPath,
"ssh_password": &c.SSHPassword,
"ssh_username": &c.SSHUser,
"ssh_wait_timeout": &c.RawSSHWaitTimeout,
}
errs := make([]error, 0)
for n, ptr := range templates {
var err error
*ptr, err = t.Process(*ptr, nil)
if err != nil {
errs = append(errs, fmt.Errorf("Error processing %s: %s", n, err))
}
}
if c.SSHKeyPath != "" {
if _, err := os.Stat(c.SSHKeyPath); err != nil {
errs = append(errs, fmt.Errorf("ssh_key_path is invalid: %s", err))
} else if _, err := sshKeyToSigner(c.SSHKeyPath); err != nil {
errs = append(errs, fmt.Errorf("ssh_key_path is invalid: %s", err))
}
}
if c.SSHHost != "" {
if ip := net.ParseIP(c.SSHHost); ip == nil {
if _, err := net.LookupHost(c.SSHHost); err != nil {
errs = append(errs, errors.New("ssh_host is an invalid IP or hostname"))
}
}
}
if c.SSHUser == "" {
errs = append(errs, errors.New("An ssh_username must be specified."))
}
var err error
c.SSHWaitTimeout, err = time.ParseDuration(c.RawSSHWaitTimeout)
if err != nil {
errs = append(errs, fmt.Errorf("Failed parsing ssh_wait_timeout: %s", err))
}
return errs
}