packer-cn/builder/amazon/ebs/step_create_ami.go

102 lines
2.9 KiB
Go

package ebs
import (
"fmt"
"github.com/aws/aws-sdk-go/service/ec2"
awscommon "github.com/hashicorp/packer/builder/amazon/common"
"github.com/hashicorp/packer/packer"
"github.com/mitchellh/multistep"
)
type stepCreateAMI struct {
image *ec2.Image
}
func (s *stepCreateAMI) Run(state multistep.StateBag) multistep.StepAction {
config := state.Get("config").(Config)
ec2conn := state.Get("ec2").(*ec2.EC2)
instance := state.Get("instance").(*ec2.Instance)
ui := state.Get("ui").(packer.Ui)
// Create the image
ui.Say(fmt.Sprintf("Creating the AMI: %s", config.AMIName))
createOpts := &ec2.CreateImageInput{
InstanceId: instance.InstanceId,
Name: &config.AMIName,
BlockDeviceMappings: config.BlockDevices.BuildAMIDevices(),
}
createResp, err := ec2conn.CreateImage(createOpts)
if err != nil {
err := fmt.Errorf("Error creating AMI: %s", err)
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
// Set the AMI ID in the state
ui.Message(fmt.Sprintf("AMI: %s", *createResp.ImageId))
amis := make(map[string]string)
amis[*ec2conn.Config.Region] = *createResp.ImageId
state.Put("amis", amis)
// Wait for the image to become ready
stateChange := awscommon.StateChangeConf{
Pending: []string{"pending"},
Target: "available",
Refresh: awscommon.AMIStateRefreshFunc(ec2conn, *createResp.ImageId),
StepState: state,
}
ui.Say("Waiting for AMI to become ready...")
if _, err := awscommon.WaitForState(&stateChange); err != nil {
err := fmt.Errorf("Error waiting for AMI: %s", err)
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
imagesResp, err := ec2conn.DescribeImages(&ec2.DescribeImagesInput{ImageIds: []*string{createResp.ImageId}})
if err != nil {
err := fmt.Errorf("Error searching for AMI: %s", err)
state.Put("error", err)
ui.Error(err.Error())
return multistep.ActionHalt
}
s.image = imagesResp.Images[0]
snapshots := make(map[string][]string)
for _, blockDeviceMapping := range imagesResp.Images[0].BlockDeviceMappings {
if blockDeviceMapping.Ebs != nil && blockDeviceMapping.Ebs.SnapshotId != nil {
snapshots[*ec2conn.Config.Region] = append(snapshots[*ec2conn.Config.Region], *blockDeviceMapping.Ebs.SnapshotId)
}
}
state.Put("snapshots", snapshots)
return multistep.ActionContinue
}
func (s *stepCreateAMI) Cleanup(state multistep.StateBag) {
if s.image == nil {
return
}
_, cancelled := state.GetOk(multistep.StateCancelled)
_, halted := state.GetOk(multistep.StateHalted)
if !cancelled && !halted {
return
}
ec2conn := state.Get("ec2").(*ec2.EC2)
ui := state.Get("ui").(packer.Ui)
ui.Say("Deregistering the AMI because cancellation or error...")
deregisterOpts := &ec2.DeregisterImageInput{ImageId: s.image.ImageId}
if _, err := ec2conn.DeregisterImage(deregisterOpts); err != nil {
ui.Error(fmt.Sprintf("Error deregistering AMI, may still be around: %s", err))
return
}
}