69 lines
2.1 KiB
Go
69 lines
2.1 KiB
Go
package common
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import (
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"context"
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"fmt"
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"strings"
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"github.com/aws/aws-sdk-go/aws"
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"github.com/aws/aws-sdk-go/service/ec2"
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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 StepModifyEBSBackedInstance struct {
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EnableAMIENASupport *bool
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EnableAMISriovNetSupport bool
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}
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func (s *StepModifyEBSBackedInstance) Run(_ context.Context, state multistep.StateBag) multistep.StepAction {
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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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// Set SriovNetSupport to "simple". See http://goo.gl/icuXh5
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// As of February 2017, this applies to C3, C4, D2, I2, R3, and M4 (excluding m4.16xlarge)
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if s.EnableAMISriovNetSupport {
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ui.Say("Enabling Enhanced Networking (SR-IOV)...")
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simple := "simple"
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_, err := ec2conn.ModifyInstanceAttribute(&ec2.ModifyInstanceAttributeInput{
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InstanceId: instance.InstanceId,
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SriovNetSupport: &ec2.AttributeValue{Value: &simple},
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})
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if err != nil {
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err := fmt.Errorf("Error enabling Enhanced Networking (SR-IOV) on %s: %s", *instance.InstanceId, 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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}
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// Handle EnaSupport flag.
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// As of February 2017, this applies to C5, I3, P2, R4, X1, and m4.16xlarge
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if s.EnableAMIENASupport != nil {
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var prefix string
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if *s.EnableAMIENASupport {
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prefix = "En"
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} else {
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prefix = "Dis"
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}
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ui.Say(fmt.Sprintf("%sabling Enhanced Networking (ENA)...", prefix))
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_, err := ec2conn.ModifyInstanceAttribute(&ec2.ModifyInstanceAttributeInput{
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InstanceId: instance.InstanceId,
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EnaSupport: &ec2.AttributeBooleanValue{Value: aws.Bool(*s.EnableAMIENASupport)},
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})
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if err != nil {
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err := fmt.Errorf("Error %sabling Enhanced Networking (ENA) on %s: %s", strings.ToLower(prefix), *instance.InstanceId, 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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}
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return multistep.ActionContinue
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}
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func (s *StepModifyEBSBackedInstance) Cleanup(state multistep.StateBag) {
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// No cleanup...
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}
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