packer-cn/builder/oneandone/builder.go

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package oneandone
import (
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"errors"
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"fmt"
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"github.com/hashicorp/packer/common"
"github.com/hashicorp/packer/helper/communicator"
"github.com/hashicorp/packer/packer"
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"github.com/mitchellh/multistep"
"log"
)
const BuilderId = "packer.oneandone"
type Builder struct {
config *Config
runner multistep.Runner
}
func (b *Builder) Prepare(raws ...interface{}) ([]string, error) {
c, warnings, errs := NewConfig(raws...)
if errs != nil {
return warnings, errs
}
b.config = c
return warnings, nil
}
func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packer.Artifact, error) {
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state := new(multistep.BasicStateBag)
state.Put("config", b.config)
state.Put("hook", hook)
state.Put("ui", ui)
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steps := []multistep.Step{
&StepCreateSSHKey{
Debug: b.config.PackerDebug,
DebugKeyPath: fmt.Sprintf("oneandone_%s", b.config.SnapshotName),
},
new(stepCreateServer),
&communicator.StepConnect{
Config: &b.config.Comm,
Host: commHost,
SSHConfig: sshConfig,
},
&common.StepProvision{},
new(stepTakeSnapshot),
}
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 rawErr, ok := state.GetOk("error"); ok {
return nil, rawErr.(error)
}
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if temp, ok := state.GetOk("snapshot_name"); ok {
b.config.SnapshotName = temp.(string)
}
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artifact := &Artifact{
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snapshotName: b.config.SnapshotName,
}
if id, ok := state.GetOk("snapshot_id"); ok {
artifact.snapshotId = id.(string)
} else {
return nil, errors.New("Image creation has failed.")
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}
return artifact, nil
}
func (b *Builder) Cancel() {
if b.runner != nil {
log.Println("Cancelling the step runner...")
b.runner.Cancel()
}
}