packer-cn/builder/amazonebs/step_create_ami.go

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package amazonebs
import (
"bytes"
"fmt"
"github.com/mitchellh/goamz/ec2"
"github.com/mitchellh/multistep"
"github.com/mitchellh/packer/packer"
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"strconv"
"text/template"
"time"
)
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type stepCreateAMI struct{}
type amiNameData struct {
CreateTime string
}
func (s *stepCreateAMI) Run(state map[string]interface{}) multistep.StepAction {
config := state["config"].(config)
ec2conn := state["ec2"].(*ec2.EC2)
instance := state["instance"].(*ec2.Instance)
ui := state["ui"].(packer.Ui)
// Parse the name of the AMI
amiNameBuf := new(bytes.Buffer)
tData := amiNameData{
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strconv.FormatInt(time.Now().UTC().Unix(), 10),
}
t := template.Must(template.New("ami").Parse(config.AMIName))
t.Execute(amiNameBuf, tData)
amiName := amiNameBuf.String()
// Create the image
ui.Say(fmt.Sprintf("Creating the AMI: %s", amiName))
createOpts := &ec2.CreateImage{
InstanceId: instance.InstanceId,
Name: amiName,
}
createResp, err := ec2conn.CreateImage(createOpts)
if err != nil {
ui.Error(err.Error())
return multistep.ActionHalt
}
// Set the AMI ID in the state
ui.Say(fmt.Sprintf("AMI: %s", createResp.ImageId))
amis := make(map[string]string)
amis[config.Region] = createResp.ImageId
state["amis"] = amis
// Wait for the image to become ready
ui.Say("Waiting for AMI to become ready...")
for {
imageResp, err := ec2conn.Images([]string{createResp.ImageId}, ec2.NewFilter())
if err != nil {
ui.Error(err.Error())
return multistep.ActionHalt
}
if imageResp.Images[0].State == "available" {
break
}
}
return multistep.ActionContinue
}
func (s *stepCreateAMI) Cleanup(map[string]interface{}) {
// No cleanup...
}