packer-cn/builder/amazon/common/run_config.go

62 lines
1.5 KiB
Go

package common
import (
"errors"
"fmt"
"time"
)
// RunConfig contains configuration for running an instance from a source
// AMI and details on how to access that launched image.
type RunConfig struct {
SourceAmi string `mapstructure:"source_ami"`
IamInstanceProfile string `mapstructure:"iam_instance_profile"`
InstanceType string `mapstructure:"instance_type"`
RawSSHTimeout string `mapstructure:"ssh_timeout"`
SSHUsername string `mapstructure:"ssh_username"`
SSHPort int `mapstructure:"ssh_port"`
SecurityGroupId string `mapstructure:"security_group_id"`
SubnetId string `mapstructure:"subnet_id"`
VpcId string `mapstructure:"vpc_id"`
// Unexported fields that are calculated from others
sshTimeout time.Duration
}
func (c *RunConfig) Prepare() []error {
// Defaults
if c.SSHPort == 0 {
c.SSHPort = 22
}
if c.RawSSHTimeout == "" {
c.RawSSHTimeout = "1m"
}
// Validation
var err error
errs := make([]error, 0)
if c.SourceAmi == "" {
errs = append(errs, errors.New("A source_ami must be specified"))
}
if c.InstanceType == "" {
errs = append(errs, errors.New("An instance_type must be specified"))
}
if c.SSHUsername == "" {
errs = append(errs, errors.New("An ssh_username must be specified"))
}
c.sshTimeout, err = time.ParseDuration(c.RawSSHTimeout)
if err != nil {
errs = append(errs, fmt.Errorf("Failed parsing ssh_timeout: %s", err))
}
return errs
}
func (c *RunConfig) SSHTimeout() time.Duration {
return c.sshTimeout
}