270 lines
7.4 KiB
Go
270 lines
7.4 KiB
Go
// The instance package contains a packer.Builder implementation that builds
|
|
// AMIs for Amazon EC2 backed by instance storage, as opposed to EBS storage.
|
|
package instance
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"github.com/mitchellh/goamz/ec2"
|
|
"github.com/mitchellh/multistep"
|
|
awscommon "github.com/mitchellh/packer/builder/amazon/common"
|
|
"github.com/mitchellh/packer/common"
|
|
"github.com/mitchellh/packer/packer"
|
|
"log"
|
|
"os"
|
|
"strings"
|
|
)
|
|
|
|
// The unique ID for this builder
|
|
const BuilderId = "mitchellh.amazon.instance"
|
|
|
|
// Config is the configuration that is chained through the steps and
|
|
// settable from the template.
|
|
type Config struct {
|
|
common.PackerConfig `mapstructure:",squash"`
|
|
awscommon.AccessConfig `mapstructure:",squash"`
|
|
awscommon.AMIConfig `mapstructure:",squash"`
|
|
awscommon.BlockDevices `mapstructure:",squash"`
|
|
awscommon.RunConfig `mapstructure:",squash"`
|
|
|
|
AccountId string `mapstructure:"account_id"`
|
|
BundleDestination string `mapstructure:"bundle_destination"`
|
|
BundlePrefix string `mapstructure:"bundle_prefix"`
|
|
BundleUploadCommand string `mapstructure:"bundle_upload_command"`
|
|
BundleVolCommand string `mapstructure:"bundle_vol_command"`
|
|
S3Bucket string `mapstructure:"s3_bucket"`
|
|
X509CertPath string `mapstructure:"x509_cert_path"`
|
|
X509KeyPath string `mapstructure:"x509_key_path"`
|
|
X509UploadPath string `mapstructure:"x509_upload_path"`
|
|
|
|
tpl *packer.ConfigTemplate
|
|
}
|
|
|
|
type Builder struct {
|
|
config Config
|
|
runner multistep.Runner
|
|
}
|
|
|
|
func (b *Builder) Prepare(raws ...interface{}) error {
|
|
md, err := common.DecodeConfig(&b.config, raws...)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
b.config.tpl, err = packer.NewConfigTemplate()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
b.config.tpl.UserVars = b.config.PackerUserVars
|
|
|
|
if b.config.BundleDestination == "" {
|
|
b.config.BundleDestination = "/tmp"
|
|
}
|
|
|
|
if b.config.BundlePrefix == "" {
|
|
b.config.BundlePrefix = "image-{{timestamp}}"
|
|
}
|
|
|
|
if b.config.BundleUploadCommand == "" {
|
|
b.config.BundleUploadCommand = "sudo -n ec2-upload-bundle " +
|
|
"-b {{.BucketName}} " +
|
|
"-m {{.ManifestPath}} " +
|
|
"-a {{.AccessKey}} " +
|
|
"-s {{.SecretKey}} " +
|
|
"-d {{.BundleDirectory}} " +
|
|
"--batch " +
|
|
"--retry"
|
|
}
|
|
|
|
if b.config.BundleVolCommand == "" {
|
|
b.config.BundleVolCommand = "sudo -n ec2-bundle-vol " +
|
|
"-k {{.KeyPath}} " +
|
|
"-u {{.AccountId}} " +
|
|
"-c {{.CertPath}} " +
|
|
"-r {{.Architecture}} " +
|
|
"-e {{.PrivatePath}} " +
|
|
"-d {{.Destination}} " +
|
|
"-p {{.Prefix}} " +
|
|
"--batch"
|
|
}
|
|
|
|
if b.config.X509UploadPath == "" {
|
|
b.config.X509UploadPath = "/tmp"
|
|
}
|
|
|
|
// Accumulate any errors
|
|
errs := common.CheckUnusedConfig(md)
|
|
errs = packer.MultiErrorAppend(errs, b.config.AccessConfig.Prepare(b.config.tpl)...)
|
|
errs = packer.MultiErrorAppend(errs, b.config.AMIConfig.Prepare(b.config.tpl)...)
|
|
errs = packer.MultiErrorAppend(errs, b.config.RunConfig.Prepare(b.config.tpl)...)
|
|
|
|
validates := map[string]*string{
|
|
"bundle_upload_command": &b.config.BundleUploadCommand,
|
|
"bundle_vol_command": &b.config.BundleVolCommand,
|
|
}
|
|
|
|
for n, ptr := range validates {
|
|
if err := b.config.tpl.Validate(*ptr); err != nil {
|
|
errs = packer.MultiErrorAppend(
|
|
errs, fmt.Errorf("Error parsing %s: %s", n, err))
|
|
}
|
|
}
|
|
|
|
templates := map[string]*string{
|
|
"account_id": &b.config.AccountId,
|
|
"ami_name": &b.config.AMIName,
|
|
"bundle_destination": &b.config.BundleDestination,
|
|
"bundle_prefix": &b.config.BundlePrefix,
|
|
"s3_bucket": &b.config.S3Bucket,
|
|
"x509_cert_path": &b.config.X509CertPath,
|
|
"x509_key_path": &b.config.X509KeyPath,
|
|
"x509_upload_path": &b.config.X509UploadPath,
|
|
}
|
|
|
|
for n, ptr := range templates {
|
|
var err error
|
|
*ptr, err = b.config.tpl.Process(*ptr, nil)
|
|
if err != nil {
|
|
errs = packer.MultiErrorAppend(
|
|
errs, fmt.Errorf("Error processing %s: %s", n, err))
|
|
}
|
|
}
|
|
|
|
if b.config.AccountId == "" {
|
|
errs = packer.MultiErrorAppend(errs, errors.New("account_id is required"))
|
|
} else {
|
|
b.config.AccountId = strings.Replace(b.config.AccountId, "-", "", -1)
|
|
}
|
|
|
|
if b.config.S3Bucket == "" {
|
|
errs = packer.MultiErrorAppend(errs, errors.New("s3_bucket is required"))
|
|
}
|
|
|
|
if b.config.X509CertPath == "" {
|
|
errs = packer.MultiErrorAppend(errs, errors.New("x509_cert_path is required"))
|
|
} else if _, err := os.Stat(b.config.X509CertPath); err != nil {
|
|
errs = packer.MultiErrorAppend(
|
|
errs, fmt.Errorf("x509_cert_path points to bad file: %s", err))
|
|
}
|
|
|
|
if b.config.X509KeyPath == "" {
|
|
errs = packer.MultiErrorAppend(errs, errors.New("x509_key_path is required"))
|
|
} else if _, err := os.Stat(b.config.X509KeyPath); err != nil {
|
|
errs = packer.MultiErrorAppend(
|
|
errs, fmt.Errorf("x509_key_path points to bad file: %s", err))
|
|
}
|
|
|
|
if errs != nil && len(errs.Errors) > 0 {
|
|
return errs
|
|
}
|
|
|
|
log.Printf("Config: %+v", b.config)
|
|
return nil
|
|
}
|
|
|
|
func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packer.Artifact, error) {
|
|
region, err := b.config.Region()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
auth, err := b.config.AccessConfig.Auth()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
ec2conn := ec2.New(auth, region)
|
|
|
|
// Setup the state bag and initial state for the steps
|
|
state := new(multistep.BasicStateBag)
|
|
state.Put("config", &b.config)
|
|
state.Put("ec2", ec2conn)
|
|
state.Put("hook", hook)
|
|
state.Put("ui", ui)
|
|
|
|
// Build the steps
|
|
steps := []multistep.Step{
|
|
&awscommon.StepKeyPair{
|
|
Debug: b.config.PackerDebug,
|
|
DebugKeyPath: fmt.Sprintf("ec2_%s.pem", b.config.PackerBuildName),
|
|
},
|
|
&awscommon.StepSecurityGroup{
|
|
SecurityGroupId: b.config.SecurityGroupId,
|
|
SSHPort: b.config.SSHPort,
|
|
VpcId: b.config.VpcId,
|
|
},
|
|
&awscommon.StepRunSourceInstance{
|
|
Debug: b.config.PackerDebug,
|
|
ExpectedRootDevice: "instance-store",
|
|
InstanceType: b.config.InstanceType,
|
|
IamInstanceProfile: b.config.IamInstanceProfile,
|
|
UserData: b.config.UserData,
|
|
UserDataFile: b.config.UserDataFile,
|
|
SourceAMI: b.config.SourceAmi,
|
|
SubnetId: b.config.SubnetId,
|
|
BlockDevices: b.config.BlockDevices,
|
|
},
|
|
&common.StepConnectSSH{
|
|
SSHAddress: awscommon.SSHAddress(ec2conn, b.config.SSHPort),
|
|
SSHConfig: awscommon.SSHConfig(b.config.SSHUsername),
|
|
SSHWaitTimeout: b.config.SSHTimeout(),
|
|
},
|
|
&common.StepProvision{},
|
|
&StepUploadX509Cert{},
|
|
&StepBundleVolume{},
|
|
&StepUploadBundle{},
|
|
&StepRegisterAMI{},
|
|
&awscommon.StepModifyAMIAttributes{
|
|
Description: b.config.AMIDescription,
|
|
Users: b.config.AMIUsers,
|
|
Groups: b.config.AMIGroups,
|
|
ProductCodes: b.config.AMIProductCodes,
|
|
},
|
|
&awscommon.StepAMIRegionCopy{
|
|
Regions: b.config.AMIRegions,
|
|
Tags: b.config.AMITags,
|
|
},
|
|
&awscommon.StepCreateTags{
|
|
Tags: b.config.AMITags,
|
|
},
|
|
}
|
|
|
|
// Run!
|
|
if b.config.PackerDebug {
|
|
b.runner = &multistep.DebugRunner{
|
|
Steps: steps,
|
|
PauseFn: common.MultistepDebugFn(ui),
|
|
}
|
|
} else {
|
|
b.runner = &multistep.BasicRunner{Steps: steps}
|
|
}
|
|
|
|
b.runner.Run(state)
|
|
|
|
// If there was an error, return that
|
|
if rawErr, ok := state.GetOk("error"); ok {
|
|
return nil, rawErr.(error)
|
|
}
|
|
|
|
// If there are no AMIs, then just return
|
|
if _, ok := state.GetOk("amis"); !ok {
|
|
return nil, nil
|
|
}
|
|
|
|
// Build the artifact and return it
|
|
artifact := &awscommon.Artifact{
|
|
Amis: state.Get("amis").(map[string]string),
|
|
BuilderIdValue: BuilderId,
|
|
Conn: ec2conn,
|
|
}
|
|
|
|
return artifact, nil
|
|
}
|
|
|
|
func (b *Builder) Cancel() {
|
|
if b.runner != nil {
|
|
log.Println("Cancelling the step runner...")
|
|
b.runner.Cancel()
|
|
}
|
|
}
|