116 lines
3.6 KiB
Go
116 lines
3.6 KiB
Go
package ebs
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import (
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"context"
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"fmt"
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"log"
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"github.com/aws/aws-sdk-go/service/ec2"
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awscommon "github.com/hashicorp/packer/builder/amazon/common"
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"github.com/hashicorp/packer/common/random"
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"github.com/hashicorp/packer/helper/multistep"
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"github.com/hashicorp/packer/packer"
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)
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type stepCreateAMI struct {
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image *ec2.Image
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}
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func (s *stepCreateAMI) Run(ctx context.Context, state multistep.StateBag) multistep.StepAction {
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config := state.Get("config").(*Config)
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ec2conn := state.Get("ec2").(*ec2.EC2)
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instance := state.Get("instance").(*ec2.Instance)
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ui := state.Get("ui").(packer.Ui)
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// Create the image
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amiName := config.AMIName
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if config.AMIEncryptBootVolume != nil {
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// encrypt_boot was set, so we will create a temporary image
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// and then create a copy of it with the correct encrypt_boot
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amiName = random.AlphaNum(7)
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}
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ui.Say(fmt.Sprintf("Creating AMI %s from instance %s", amiName, *instance.InstanceId))
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createOpts := &ec2.CreateImageInput{
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InstanceId: instance.InstanceId,
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Name: &amiName,
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BlockDeviceMappings: config.BlockDevices.BuildAMIDevices(),
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}
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createResp, err := ec2conn.CreateImage(createOpts)
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if err != nil {
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err := fmt.Errorf("Error creating AMI: %s", err)
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state.Put("error", err)
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ui.Error(err.Error())
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return multistep.ActionHalt
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}
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// Set the AMI ID in the state
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ui.Message(fmt.Sprintf("AMI: %s", *createResp.ImageId))
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amis := make(map[string]string)
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amis[*ec2conn.Config.Region] = *createResp.ImageId
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state.Put("amis", amis)
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// Wait for the image to become ready
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ui.Say("Waiting for AMI to become ready...")
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if err := awscommon.WaitUntilAMIAvailable(ctx, ec2conn, *createResp.ImageId); err != nil {
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log.Printf("Error waiting for AMI: %s", err)
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imagesResp, err := ec2conn.DescribeImages(&ec2.DescribeImagesInput{ImageIds: []*string{createResp.ImageId}})
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if err != nil {
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log.Printf("Unable to determine reason waiting for AMI failed: %s", err)
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err = fmt.Errorf("Unknown error waiting for AMI.")
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} else {
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stateReason := imagesResp.Images[0].StateReason
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err = fmt.Errorf("Error waiting for AMI. Reason: %s", stateReason)
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}
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state.Put("error", err)
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ui.Error(err.Error())
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return multistep.ActionHalt
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}
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imagesResp, err := ec2conn.DescribeImages(&ec2.DescribeImagesInput{ImageIds: []*string{createResp.ImageId}})
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if err != nil {
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err := fmt.Errorf("Error searching for AMI: %s", err)
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state.Put("error", err)
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ui.Error(err.Error())
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return multistep.ActionHalt
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}
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s.image = imagesResp.Images[0]
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snapshots := make(map[string][]string)
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for _, blockDeviceMapping := range imagesResp.Images[0].BlockDeviceMappings {
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if blockDeviceMapping.Ebs != nil && blockDeviceMapping.Ebs.SnapshotId != nil {
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snapshots[*ec2conn.Config.Region] = append(snapshots[*ec2conn.Config.Region], *blockDeviceMapping.Ebs.SnapshotId)
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}
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}
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state.Put("snapshots", snapshots)
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return multistep.ActionContinue
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}
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func (s *stepCreateAMI) Cleanup(state multistep.StateBag) {
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if s.image == nil {
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return
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}
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config := state.Get("config").(*Config)
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_, cancelled := state.GetOk(multistep.StateCancelled)
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_, halted := state.GetOk(multistep.StateHalted)
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encryptBootSet := config.AMIEncryptBootVolume != nil
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if !cancelled && !halted && !encryptBootSet {
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return
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}
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ec2conn := state.Get("ec2").(*ec2.EC2)
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ui := state.Get("ui").(packer.Ui)
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ui.Say("Deregistering the AMI because cancellation, error or it was temporary (encrypt_boot was set)...")
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deregisterOpts := &ec2.DeregisterImageInput{ImageId: s.image.ImageId}
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if _, err := ec2conn.DeregisterImage(deregisterOpts); err != nil {
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ui.Error(fmt.Sprintf("Error deregistering AMI, may still be around: %s", err))
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return
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}
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}
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