packer-cn/builder/amazon/ebs/builder.go

218 lines
6.5 KiB
Go
Raw Normal View History

2013-05-09 17:16:39 -04:00
// The amazonebs package contains a packer.Builder implementation that
// builds AMIs for Amazon EC2.
//
// In general, there are two types of AMIs that can be created: ebs-backed or
// instance-store. This builder _only_ builds ebs-backed images.
package ebs
import (
"fmt"
"log"
"github.com/aws/aws-sdk-go/aws/session"
2015-06-03 17:13:52 -04:00
"github.com/aws/aws-sdk-go/service/ec2"
"github.com/mitchellh/multistep"
awscommon "github.com/mitchellh/packer/builder/amazon/common"
"github.com/mitchellh/packer/common"
"github.com/mitchellh/packer/helper/communicator"
"github.com/mitchellh/packer/helper/config"
"github.com/mitchellh/packer/packer"
"github.com/mitchellh/packer/template/interpolate"
)
// The unique ID for this builder
const BuilderId = "mitchellh.amazonebs"
type Config struct {
common.PackerConfig `mapstructure:",squash"`
awscommon.AccessConfig `mapstructure:",squash"`
awscommon.AMIConfig `mapstructure:",squash"`
awscommon.BlockDevices `mapstructure:",squash"`
awscommon.RunConfig `mapstructure:",squash"`
VolumeRunTags map[string]string `mapstructure:"run_volume_tags"`
2013-05-20 19:50:35 -04:00
ctx interpolate.Context
}
type Builder struct {
config Config
runner multistep.Runner
}
2013-11-02 23:56:54 -04:00
func (b *Builder) Prepare(raws ...interface{}) ([]string, error) {
b.config.ctx.Funcs = awscommon.TemplateFuncs
err := config.Decode(&b.config, &config.DecodeOpts{
Interpolate: true,
InterpolateContext: &b.config.ctx,
}, raws...)
if err != nil {
2013-11-02 23:56:54 -04:00
return nil, err
}
2013-06-14 15:29:48 -04:00
// Accumulate any errors
var errs *packer.MultiError
errs = packer.MultiErrorAppend(errs, b.config.AccessConfig.Prepare(&b.config.ctx)...)
errs = packer.MultiErrorAppend(errs, b.config.BlockDevices.Prepare(&b.config.ctx)...)
errs = packer.MultiErrorAppend(errs, b.config.AMIConfig.Prepare(&b.config.ctx)...)
errs = packer.MultiErrorAppend(errs, b.config.RunConfig.Prepare(&b.config.ctx)...)
2013-07-19 19:08:25 -04:00
if errs != nil && len(errs.Errors) > 0 {
2013-11-02 23:56:54 -04:00
return nil, errs
}
log.Println(common.ScrubConfig(b.config, b.config.AccessKey, b.config.SecretKey))
2013-11-02 23:56:54 -04:00
return nil, nil
}
func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packer.Artifact, error) {
config, err := b.config.Config()
if err != nil {
return nil, err
}
session := session.New(config)
ec2conn := ec2.New(session)
// If the subnet is specified but not the AZ, try to determine the AZ automatically
if b.config.SubnetId != "" && b.config.AvailabilityZone == "" {
log.Printf("[INFO] Finding AZ for the given subnet '%s'", b.config.SubnetId)
2016-01-06 02:12:20 -05:00
resp, err := ec2conn.DescribeSubnets(&ec2.DescribeSubnetsInput{SubnetIds: []*string{&b.config.SubnetId}})
if err != nil {
return nil, err
}
b.config.AvailabilityZone = *resp.Subnets[0].AvailabilityZone
log.Printf("[INFO] AZ found: '%s'", b.config.AvailabilityZone)
}
// Setup the state bag and initial state for the steps
2013-08-31 16:00:43 -04:00
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.StepPreValidate{
DestAmiName: b.config.AMIName,
ForceDeregister: b.config.AMIForceDeregister,
},
&awscommon.StepSourceAMIInfo{
SourceAmi: b.config.SourceAmi,
EnhancedNetworking: b.config.AMIEnhancedNetworking,
},
&awscommon.StepKeyPair{
Debug: b.config.PackerDebug,
DebugKeyPath: fmt.Sprintf("ec2_%s.pem", b.config.PackerBuildName),
KeyPairName: b.config.SSHKeyPairName,
2015-01-13 22:58:41 -05:00
TemporaryKeyPairName: b.config.TemporaryKeyPairName,
PrivateKeyFile: b.config.RunConfig.Comm.SSHPrivateKey,
},
&awscommon.StepSecurityGroup{
SecurityGroupIds: b.config.SecurityGroupIds,
CommConfig: &b.config.RunConfig.Comm,
VpcId: b.config.VpcId,
},
&stepCleanupVolumes{
BlockDevices: b.config.BlockDevices,
},
&awscommon.StepRunSourceInstance{
Debug: b.config.PackerDebug,
ExpectedRootDevice: "ebs",
SpotPrice: b.config.SpotPrice,
SpotPriceProduct: b.config.SpotPriceAutoProduct,
InstanceType: b.config.InstanceType,
UserData: b.config.UserData,
UserDataFile: b.config.UserDataFile,
SourceAMI: b.config.SourceAmi,
IamInstanceProfile: b.config.IamInstanceProfile,
SubnetId: b.config.SubnetId,
AssociatePublicIpAddress: b.config.AssociatePublicIpAddress,
2015-10-06 16:36:21 -04:00
EbsOptimized: b.config.EbsOptimized,
AvailabilityZone: b.config.AvailabilityZone,
BlockDevices: b.config.BlockDevices,
Tags: b.config.RunTags,
},
&stepTagEBSVolumes{
VolumeRunTags: b.config.VolumeRunTags,
},
2015-06-14 01:35:45 -04:00
&awscommon.StepGetPassword{
Debug: b.config.PackerDebug,
2015-06-14 01:35:45 -04:00
Comm: &b.config.RunConfig.Comm,
Timeout: b.config.WindowsPasswordTimeout,
},
&communicator.StepConnect{
Config: &b.config.RunConfig.Comm,
Host: awscommon.SSHHost(
ec2conn,
b.config.SSHPrivateIp),
SSHConfig: awscommon.SSHConfig(
b.config.RunConfig.Comm.SSHUsername),
},
&common.StepProvision{},
&stepStopInstance{
SpotPrice: b.config.SpotPrice,
DisableStopInstance: b.config.DisableStopInstance,
},
// TODO(mitchellh): verify works with spots
&stepModifyInstance{},
&awscommon.StepDeregisterAMI{
ForceDeregister: b.config.AMIForceDeregister,
AMIName: b.config.AMIName,
},
&stepCreateAMI{},
&awscommon.StepAMIRegionCopy{
AccessConfig: &b.config.AccessConfig,
Regions: b.config.AMIRegions,
Name: b.config.AMIName,
},
&awscommon.StepModifyAMIAttributes{
Description: b.config.AMIDescription,
Users: b.config.AMIUsers,
Groups: b.config.AMIGroups,
ProductCodes: b.config.AMIProductCodes,
},
&awscommon.StepCreateTags{
Tags: b.config.AMITags,
},
2013-05-21 02:18:44 -04:00
}
// Run!
2013-06-15 13:51:09 -04:00
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
2013-08-31 16:00:43 -04:00
if rawErr, ok := state.GetOk("error"); ok {
return nil, rawErr.(error)
}
2013-06-19 00:54:33 -04:00
// If there are no AMIs, then just return
2013-08-31 16:00:43 -04:00
if _, ok := state.GetOk("amis"); !ok {
return nil, nil
}
// Build the artifact and return it
artifact := &awscommon.Artifact{
2013-08-31 16:00:43 -04:00
Amis: state.Get("amis").(map[string]string),
BuilderIdValue: BuilderId,
2013-07-20 23:08:54 -04:00
Conn: ec2conn,
}
return artifact, nil
}
func (b *Builder) Cancel() {
if b.runner != nil {
log.Println("Cancelling the step runner...")
b.runner.Cancel()
}
}