github.com/rahart/packer@v0.12.2-0.20161229105310-282bb6ad370f/builder/amazon/common/step_stop_ebs_instance.go (about)

     1  package common
     2  
     3  import (
     4  	"fmt"
     5  
     6  	"github.com/aws/aws-sdk-go/service/ec2"
     7  	"github.com/mitchellh/multistep"
     8  	"github.com/mitchellh/packer/packer"
     9  )
    10  
    11  type StepStopEBSBackedInstance struct {
    12  	SpotPrice           string
    13  	DisableStopInstance bool
    14  }
    15  
    16  func (s *StepStopEBSBackedInstance) Run(state multistep.StateBag) multistep.StepAction {
    17  	ec2conn := state.Get("ec2").(*ec2.EC2)
    18  	instance := state.Get("instance").(*ec2.Instance)
    19  	ui := state.Get("ui").(packer.Ui)
    20  
    21  	// Skip when it is a spot instance
    22  	if s.SpotPrice != "" && s.SpotPrice != "0" {
    23  		return multistep.ActionContinue
    24  	}
    25  
    26  	var err error
    27  
    28  	if !s.DisableStopInstance {
    29  		// Stop the instance so we can create an AMI from it
    30  		ui.Say("Stopping the source instance...")
    31  		_, err = ec2conn.StopInstances(&ec2.StopInstancesInput{
    32  			InstanceIds: []*string{instance.InstanceId},
    33  		})
    34  		if err != nil {
    35  			err := fmt.Errorf("Error stopping instance: %s", err)
    36  			state.Put("error", err)
    37  			ui.Error(err.Error())
    38  			return multistep.ActionHalt
    39  		}
    40  	} else {
    41  		ui.Say("Automatic instance stop disabled. Please stop instance manually.")
    42  	}
    43  
    44  	// Wait for the instance to actual stop
    45  	ui.Say("Waiting for the instance to stop...")
    46  	stateChange := StateChangeConf{
    47  		Pending:   []string{"running", "stopping"},
    48  		Target:    "stopped",
    49  		Refresh:   InstanceStateRefreshFunc(ec2conn, *instance.InstanceId),
    50  		StepState: state,
    51  	}
    52  	_, err = WaitForState(&stateChange)
    53  	if err != nil {
    54  		err := fmt.Errorf("Error waiting for instance to stop: %s", err)
    55  		state.Put("error", err)
    56  		ui.Error(err.Error())
    57  		return multistep.ActionHalt
    58  	}
    59  
    60  	return multistep.ActionContinue
    61  }
    62  
    63  func (s *StepStopEBSBackedInstance) Cleanup(multistep.StateBag) {
    64  	// No cleanup...
    65  }