87 lines
1.8 KiB
Go
87 lines
1.8 KiB
Go
package openstack
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import (
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"errors"
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"fmt"
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"github.com/mitchellh/packer/packer"
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"time"
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)
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// RunConfig contains configuration for running an instance from a source
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// image and details on how to access that launched image.
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type RunConfig struct {
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SourceImage string `mapstructure:"source_image"`
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Flavor string `mapstructure:"flavor"`
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RawSSHTimeout string `mapstructure:"ssh_timeout"`
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SSHUsername string `mapstructure:"ssh_username"`
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SSHPort int `mapstructure:"ssh_port"`
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// Unexported fields that are calculated from others
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sshTimeout time.Duration
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}
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func (c *RunConfig) Prepare(t *packer.ConfigTemplate) []error {
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if t == nil {
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var err error
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t, err = packer.NewConfigTemplate()
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if err != nil {
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return []error{err}
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}
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}
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// Defaults
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if c.SSHUsername == "" {
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c.SSHUsername = "root"
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}
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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.RawSSHTimeout == "" {
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c.RawSSHTimeout = "1m"
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}
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// Validation
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var err error
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errs := make([]error, 0)
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if c.SourceImage == "" {
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errs = append(errs, errors.New("A source_image must be specified"))
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}
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if c.Flavor == "" {
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errs = append(errs, errors.New("A flavor must be specified"))
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}
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if c.SSHUsername == "" {
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errs = append(errs, errors.New("An ssh_username must be specified"))
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}
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templates := map[string]*string{
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"flavlor": &c.Flavor,
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"ssh_timeout": &c.RawSSHTimeout,
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"ssh_username": &c.SSHUsername,
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"source_image": &c.SourceImage,
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}
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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(
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errs, fmt.Errorf("Error processing %s: %s", n, err))
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}
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}
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c.sshTimeout, err = time.ParseDuration(c.RawSSHTimeout)
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if err != nil {
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errs = append(errs, fmt.Errorf("Failed parsing ssh_timeout: %s", err))
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}
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return errs
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}
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func (c *RunConfig) SSHTimeout() time.Duration {
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return c.sshTimeout
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}
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