packer-cn/builder/triton/builder.go

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package triton
import (
"log"
"github.com/hashicorp/go-multierror"
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"github.com/hashicorp/packer/common"
"github.com/hashicorp/packer/helper/communicator"
"github.com/hashicorp/packer/helper/config"
"github.com/hashicorp/packer/packer"
"github.com/mitchellh/multistep"
)
const (
BuilderId = "joyent.triton"
)
type Builder struct {
config Config
runner multistep.Runner
}
func (b *Builder) Prepare(raws ...interface{}) ([]string, error) {
errs := &multierror.Error{}
err := config.Decode(&b.config, &config.DecodeOpts{
Interpolate: true,
InterpolateContext: &b.config.ctx,
}, raws...)
if err != nil {
errs = multierror.Append(errs, err)
}
errs = multierror.Append(errs, b.config.AccessConfig.Prepare(&b.config.ctx)...)
errs = multierror.Append(errs, b.config.SourceMachineConfig.Prepare(&b.config.ctx)...)
errs = multierror.Append(errs, b.config.Comm.Prepare(&b.config.ctx)...)
errs = multierror.Append(errs, b.config.TargetImageConfig.Prepare(&b.config.ctx)...)
// If we are using an SSH agent to sign requests, and no private key has been
// specified for SSH, use the agent for connecting for provisioning.
if b.config.AccessConfig.KeyMaterial == "" && b.config.Comm.SSHPrivateKey == "" {
b.config.Comm.SSHAgentAuth = true
}
return nil, errs.ErrorOrNil()
}
func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packer.Artifact, error) {
config := b.config
driver, err := NewDriverTriton(ui, config)
if err != nil {
return nil, err
}
state := new(multistep.BasicStateBag)
state.Put("config", b.config)
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state.Put("debug", b.config.PackerDebug)
state.Put("driver", driver)
state.Put("hook", hook)
state.Put("ui", ui)
steps := []multistep.Step{
&StepCreateSourceMachine{},
&communicator.StepConnect{
Config: &config.Comm,
Host: commHost,
SSHConfig: sshConfig(
b.config.Comm.SSHAgentAuth,
b.config.Comm.SSHUsername,
b.config.Comm.SSHPrivateKey,
b.config.Comm.SSHPassword),
},
&common.StepProvision{},
&StepStopMachine{},
&StepCreateImageFromMachine{},
&StepDeleteMachine{},
}
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b.runner = common.NewRunnerWithPauseFn(steps, b.config.PackerConfig, ui, state)
b.runner.Run(state)
// If there was an error, return that
if rawErr, ok := state.GetOk("error"); ok {
return nil, rawErr.(error)
}
// If there is no image, just return
if _, ok := state.GetOk("image"); !ok {
return nil, nil
}
artifact := &Artifact{
ImageID: state.Get("image").(string),
BuilderIDValue: BuilderId,
Driver: driver,
}
return artifact, nil
}
// Cancel cancels a possibly running Builder. This should block until
// the builder actually cancels and cleans up after itself.
func (b *Builder) Cancel() {
if b.runner != nil {
log.Println("Cancelling the step runner...")
b.runner.Cancel()
}
}