79 lines
1.9 KiB
Go
79 lines
1.9 KiB
Go
package common
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import (
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"errors"
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"fmt"
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"net"
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"os"
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"time"
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"github.com/mitchellh/packer/packer"
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)
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type SSHConfig struct {
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SSHUser string `mapstructure:"ssh_username"`
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SSHKeyPath string `mapstructure:"ssh_key_path"`
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SSHPassword string `mapstructure:"ssh_password"`
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SSHHost string `mapstructure:"ssh_host"`
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SSHPort uint `mapstructure:"ssh_port"`
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SSHSkipRequestPty bool `mapstructure:"ssh_skip_request_pty"`
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RawSSHWaitTimeout string `mapstructure:"ssh_wait_timeout"`
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SSHWaitTimeout time.Duration
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}
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func (c *SSHConfig) Prepare(t *packer.ConfigTemplate) []error {
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if c.SSHPort == 0 {
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c.SSHPort = 22
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}
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if c.RawSSHWaitTimeout == "" {
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c.RawSSHWaitTimeout = "20m"
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}
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templates := map[string]*string{
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"ssh_host": &c.SSHHost,
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"ssh_key_path": &c.SSHKeyPath,
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"ssh_password": &c.SSHPassword,
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"ssh_username": &c.SSHUser,
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"ssh_wait_timeout": &c.RawSSHWaitTimeout,
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}
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errs := make([]error, 0)
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for n, ptr := range templates {
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var err error
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*ptr, err = t.Process(*ptr, nil)
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if err != nil {
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errs = append(errs, fmt.Errorf("Error processing %s: %s", n, err))
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}
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}
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if c.SSHKeyPath != "" {
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if _, err := os.Stat(c.SSHKeyPath); err != nil {
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errs = append(errs, fmt.Errorf("ssh_key_path is invalid: %s", err))
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} else if _, err := sshKeyToSigner(c.SSHKeyPath); err != nil {
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errs = append(errs, fmt.Errorf("ssh_key_path is invalid: %s", err))
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}
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}
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if c.SSHHost != "" {
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if ip := net.ParseIP(c.SSHHost); ip == nil {
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if _, err := net.LookupHost(c.SSHHost); err != nil {
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errs = append(errs, errors.New("ssh_host is an invalid IP or hostname"))
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}
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}
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}
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if c.SSHUser == "" {
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errs = append(errs, errors.New("An ssh_username must be specified."))
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}
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var err error
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c.SSHWaitTimeout, err = time.ParseDuration(c.RawSSHWaitTimeout)
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if err != nil {
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errs = append(errs, fmt.Errorf("Failed parsing ssh_wait_timeout: %s", err))
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}
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return errs
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}
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