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package lxd
import (
"github.com/hashicorp/packer/common"
"github.com/hashicorp/packer/packer"
"github.com/hashicorp/packer/template/interpolate"
"github.com/mitchellh/multistep"
"log"
)
// The unique ID for this builder
const BuilderId = "lxd"
type wrappedCommandTemplate struct {
Command string
}
type Builder struct {
config *Config
runner multistep.Runner
}
func (b *Builder) Prepare(raws ...interface{}) ([]string, error) {
c, errs := NewConfig(raws...)
if errs != nil {
return nil, errs
}
b.config = c
return nil, nil
}
func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packer.Artifact, error) {
wrappedCommand := func(command string) (string, error) {
b.config.ctx.Data = &wrappedCommandTemplate{Command: command}
return interpolate.Render(b.config.CommandWrapper, &b.config.ctx)
}
steps := []multistep.Step{
&stepLxdLaunch{},
&StepProvision{},
&stepPublish{},
}
// Setup the state bag
state := new(multistep.BasicStateBag)
state.Put("config", b.config)
state.Put("cache", cache)
state.Put("hook", hook)
state.Put("ui", ui)
state.Put("wrappedCommand", CommandWrapper(wrappedCommand))
// Run
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)
}
artifact := &Artifact{
id: state.Get("imageFingerprint").(string),
}
return artifact, nil
}
func (b *Builder) Cancel() {
if b.runner != nil {
log.Println("Cancelling the step runner...")
b.runner.Cancel()
}
}
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