53 lines
1.4 KiB
Go
53 lines
1.4 KiB
Go
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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)
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// StepSourceAMIInfo extracts critical information from the source AMI
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// that is used throughout the AMI creation process.
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//
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// Produces:
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// source_image *ec2.Image - the source AMI info
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type StepSourceAMIInfo struct{}
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func (s *StepSourceAMIInfo) Run(state map[string]interface{}) multistep.StepAction {
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config := state["config"].(*Config)
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ec2conn := state["ec2"].(*ec2.EC2)
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ui := state["ui"].(packer.Ui)
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ui.Say("Inspecting the source AMI...")
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imageResp, err := ec2conn.Images([]string{config.SourceAmi}, ec2.NewFilter())
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if err != nil {
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err := fmt.Errorf("Error querying AMI: %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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if len(imageResp.Images) == 0 {
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err := fmt.Errorf("Source AMI '%s' was not found!", config.SourceAmi)
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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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image := imageResp.Images[0]
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// It must be EBS-backed otherwise the build won't work
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if image.RootDeviceType != "ebs" {
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err := fmt.Errorf("The root device of the source AMI must be EBS-backed.")
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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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state["source_image"] = image
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return multistep.ActionContinue
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}
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func (s *StepSourceAMIInfo) Cleanup(map[string]interface{}) {}
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