CreateImagev2
CreateImagev2.go
This example creates an Amazon EC2 image.
go run CreateImagev2.go -d DESCRIPTION -i IMAGE-ID -n IMAGE-NAME
- DESCRIPTION is the description of the image.
- IMAGE-ID is the ID of the instance.
- IMAGE-NAME is the name of the image.
The unit test accepts similar values in config.json.
Source code
// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX - License - Identifier: Apache - 2.0
package main
import (
"context"
"flag"
"fmt"
"github.com/aws/aws-sdk-go-v2/aws"
"github.com/aws/aws-sdk-go-v2/config"
"github.com/aws/aws-sdk-go-v2/service/ec2"
"github.com/aws/aws-sdk-go-v2/service/ec2/types"
)
// EC2CreateImageAPI defines the interface for the CreateImage function.
// We use this interface to test the function using a mocked service.
type EC2CreateImageAPI interface {
CreateImage(ctx context.Context,
params *ec2.CreateImageInput,
optFns ...func(*ec2.Options)) (*ec2.CreateImageOutput, error)
}
// MakeImage creates an Amazon Elastic Compute Cloud (Amazon EC2) image.
// Inputs:
// c is the context of the method call, which includes the AWS Region.
// api is the interface that defines the method call.
// input defines the input arguments to the service call.
// Output:
// If success, a CreateImageOutput object containing the result of the service call and nil.
// Otherwise, nil and an error from the call to CreateImage.
func MakeImage(c context.Context, api EC2CreateImageAPI, input *ec2.CreateImageInput) (*ec2.CreateImageOutput, error) {
return api.CreateImage(c, input)
}
func main() {
description := flag.String("d", "", "The description of the image")
instanceID := flag.String("i", "", "The ID of the instance")
name := flag.String("n", "", "The name of the image")
flag.Parse()
if *description == "" || *instanceID == "" || *name == "" {
fmt.Println("You must supply an image description, instance ID, and image name")
fmt.Println("(-d IMAGE-DESCRIPTION -i INSTANCE-ID -n IMAGE-NAME")
return
}
cfg, err := config.LoadDefaultConfig(context.TODO())
if err != nil {
panic("configuration error, " + err.Error())
}
client := ec2.NewFromConfig(cfg)
input := &ec2.CreateImageInput{
Description: description,
InstanceId: instanceID,
Name: name,
BlockDeviceMappings: []types.BlockDeviceMapping{
{
DeviceName: aws.String("/dev/sda1"),
NoDevice: aws.String(""),
},
{
DeviceName: aws.String("/dev/sdb"),
NoDevice: aws.String(""),
},
{
DeviceName: aws.String("/dev/sdc"),
NoDevice: aws.String(""),
},
},
}
resp, err := MakeImage(context.TODO(), client, input)
if err != nil {
fmt.Println("Got an error createing image:")
fmt.Println(err)
return
}
fmt.Println("ID: ", resp.ImageId)
}
See the complete example in GitHub.
Last modified January 15, 2021: Code Example Highlighting, Vairous Documentation Fixes (#1045) (495b900)