2013-05-09 17:16:39 -04:00
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// The amazonebs package contains a packer.Builder implementation that
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// builds AMIs for Amazon EC2.
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//
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// In general, there are two types of AMIs that can be created: ebs-backed or
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// instance-store. This builder _only_ builds ebs-backed images.
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2013-07-15 02:02:18 -04:00
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package ebs
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2013-05-09 01:34:20 -04:00
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import (
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2013-08-30 17:48:50 -04:00
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"fmt"
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2013-05-10 18:21:11 -04:00
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"github.com/mitchellh/goamz/ec2"
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2013-06-04 13:00:06 -04:00
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"github.com/mitchellh/multistep"
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2013-07-16 00:08:19 -04:00
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awscommon "github.com/mitchellh/packer/builder/amazon/common"
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2013-08-01 15:11:54 -04:00
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"github.com/mitchellh/packer/common"
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2013-05-09 01:34:20 -04:00
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"github.com/mitchellh/packer/packer"
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2013-05-09 16:26:40 -04:00
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"log"
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)
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2013-05-22 01:28:41 -04:00
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// The unique ID for this builder
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const BuilderId = "mitchellh.amazonebs"
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type config struct {
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common.PackerConfig `mapstructure:",squash"`
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awscommon.AccessConfig `mapstructure:",squash"`
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awscommon.AMIConfig `mapstructure:",squash"`
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awscommon.BlockDevices `mapstructure:",squash"`
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2013-07-16 00:23:40 -04:00
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awscommon.RunConfig `mapstructure:",squash"`
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2013-05-20 19:50:35 -04:00
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tpl *packer.ConfigTemplate
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}
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type Builder struct {
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config config
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runner multistep.Runner
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}
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2013-06-14 15:29:48 -04:00
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func (b *Builder) Prepare(raws ...interface{}) error {
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md, err := common.DecodeConfig(&b.config, raws...)
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if err != nil {
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return err
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}
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b.config.tpl, err = packer.NewConfigTemplate()
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if err != nil {
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return err
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}
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b.config.tpl.UserVars = b.config.PackerUserVars
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// Accumulate any errors
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errs := common.CheckUnusedConfig(md)
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errs = packer.MultiErrorAppend(errs, b.config.AccessConfig.Prepare(b.config.tpl)...)
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errs = packer.MultiErrorAppend(errs, b.config.AMIConfig.Prepare(b.config.tpl)...)
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errs = packer.MultiErrorAppend(errs, b.config.RunConfig.Prepare(b.config.tpl)...)
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if errs != nil && len(errs.Errors) > 0 {
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return errs
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}
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log.Printf("Config: %+v", b.config)
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return nil
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}
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2013-06-12 19:06:56 -04:00
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func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packer.Artifact, error) {
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region, err := b.config.Region()
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if err != nil {
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return nil, err
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}
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auth, err := b.config.AccessConfig.Auth()
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if err != nil {
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return nil, err
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}
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2013-05-10 18:21:11 -04:00
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ec2conn := ec2.New(auth, region)
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2013-05-21 03:55:32 -04:00
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// Setup the state bag and initial state for the steps
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state := new(multistep.BasicStateBag)
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state.Put("config", b.config)
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state.Put("ec2", ec2conn)
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state.Put("hook", hook)
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state.Put("ui", ui)
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2013-05-21 03:55:32 -04:00
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// Build the steps
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steps := []multistep.Step{
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&awscommon.StepKeyPair{
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Debug: b.config.PackerDebug,
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DebugKeyPath: fmt.Sprintf("ec2_%s.pem", b.config.PackerBuildName),
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KeyPairPattern: b.config.SSHKeyPairPattern,
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},
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&awscommon.StepSecurityGroup{
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SecurityGroupId: b.config.SecurityGroupId,
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SSHPort: b.config.SSHPort,
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VpcId: b.config.VpcId,
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},
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&awscommon.StepRunSourceInstance{
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Debug: b.config.PackerDebug,
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ExpectedRootDevice: "ebs",
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InstanceType: b.config.InstanceType,
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UserData: b.config.UserData,
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UserDataFile: b.config.UserDataFile,
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SourceAMI: b.config.SourceAmi,
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IamInstanceProfile: b.config.IamInstanceProfile,
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SubnetId: b.config.SubnetId,
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BlockDevices: b.config.BlockDevices,
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},
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&common.StepConnectSSH{
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SSHAddress: awscommon.SSHAddress(ec2conn, b.config.SSHPort),
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SSHConfig: awscommon.SSHConfig(b.config.SSHUsername),
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SSHWaitTimeout: b.config.SSHTimeout(),
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},
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&common.StepProvision{},
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&stepStopInstance{},
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&stepCreateAMI{},
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&awscommon.StepModifyAMIAttributes{
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Description: b.config.AMIDescription,
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Users: b.config.AMIUsers,
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Groups: b.config.AMIGroups,
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},
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&awscommon.StepAMIRegionCopy{
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Regions: b.config.AMIRegions,
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Tags: b.config.AMITags,
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},
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&awscommon.StepCreateTags{
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Tags: b.config.AMITags,
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},
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}
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2013-05-21 03:55:32 -04:00
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// Run!
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if b.config.PackerDebug {
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b.runner = &multistep.DebugRunner{
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Steps: steps,
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PauseFn: common.MultistepDebugFn(ui),
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}
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} else {
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b.runner = &multistep.BasicRunner{Steps: steps}
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}
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b.runner.Run(state)
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2013-06-19 23:54:02 -04:00
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// If there was an error, return that
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if rawErr, ok := state.GetOk("error"); ok {
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return nil, rawErr.(error)
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}
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2013-06-19 00:54:33 -04:00
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// If there are no AMIs, then just return
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if _, ok := state.GetOk("amis"); !ok {
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return nil, nil
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2013-06-04 13:59:12 -04:00
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}
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2013-05-22 01:28:41 -04:00
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// Build the artifact and return it
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artifact := &awscommon.Artifact{
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Amis: state.Get("amis").(map[string]string),
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BuilderIdValue: BuilderId,
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Conn: ec2conn,
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}
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return artifact, nil
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2013-05-10 16:01:54 -04:00
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}
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2013-06-03 17:44:34 -04:00
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func (b *Builder) Cancel() {
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if b.runner != nil {
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log.Println("Cancelling the step runner...")
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b.runner.Cancel()
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}
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2013-06-03 17:44:34 -04:00
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}
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