67 lines
1.7 KiB
Go
67 lines
1.7 KiB
Go
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package chroot
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import (
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"fmt"
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"github.com/mitchellh/goamz/ec2"
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"github.com/mitchellh/multistep"
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"github.com/mitchellh/packer/packer"
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"log"
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)
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// StepCreateVolume creates a new volume from the snapshot of the root
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// device of the AMI.
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//
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// Produces:
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// volume_id string - The ID of the created volume
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type StepCreateVolume struct {
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volumeId string
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}
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func (s *StepCreateVolume) Run(state map[string]interface{}) multistep.StepAction {
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ec2conn := state["ec2"].(*ec2.EC2)
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image := state["source_image"].(*ec2.Image)
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instance := state["instance"].(*ec2.Instance)
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ui := state["ui"].(packer.Ui)
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// Determine the root device snapshot
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log.Printf("Searching for root device of the image (%s)", image.RootDeviceName)
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var rootDevice *ec2.BlockDeviceMapping
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for _, device := range image.BlockDevices {
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if device.DeviceName == image.RootDeviceName {
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rootDevice = &device
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break
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}
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}
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if rootDevice == nil {
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err := fmt.Errorf("Couldn't find root device!")
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state["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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ui.Say("Creating the root volume...")
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createVolume := &ec2.CreateVolume{
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AvailZone: instance.AvailZone,
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Size: rootDevice.VolumeSize,
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SnapshotId: rootDevice.SnapshotId,
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VolumeType: rootDevice.VolumeType,
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IOPS: rootDevice.IOPS,
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}
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createVolumeResp, err := ec2conn.CreateVolume(createVolume)
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if err != nil {
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err := fmt.Errorf("Error creating root volume: %s", err)
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state["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 volume ID so we remember to delete it later
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s.volumeId = createVolumeResp.VolumeId
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return multistep.ActionContinue
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}
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func (s *StepCreateVolume) Cleanup(map[string]interface{}) {}
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