CreateInstance.go
// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: MIT-0
package main
import (
"flag"
"fmt"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/ec2"
"github.com/aws/aws-sdk-go/service/ec2/ec2iface"
)
// MakeInstance creates an Amazon Elastic Compute Cloud (Amazon EC2) instance
// Inputs:
// svc is an Amazon EC2 service client
// key is the name of the tag to attach to the instance
// value is the value of the tag to attach to the instance
// Output:
// If success, nil
// Otherwise, an error from the call to RunInstances or CreateTags
func MakeInstance(svc ec2iface.EC2API, name, value *string) (*ec2.Reservation, error) {
result, err := svc.RunInstances(&ec2.RunInstancesInput{
ImageId: aws.String("ami-e7527ed7"),
InstanceType: aws.String("t2.micro"),
MinCount: aws.Int64(1),
MaxCount: aws.Int64(1),
})
if err != nil {
return nil, err
}
_, err = svc.CreateTags(&ec2.CreateTagsInput{
Resources: []*string{result.Instances[0].InstanceId},
Tags: []*ec2.Tag{
{
Key: name,
Value: value,
},
},
})
if err != nil {
return nil, err
}
return result, nil
}
func main() {
name := flag.String("n", "", "The name of the tag to attach to the instance")
value := flag.String("v", "", "The value of the tag to attach to the instance")
flag.Parse()
if *name == "" || *value == "" {
fmt.Println("You must supply a name and value for the tag (-n NAME -v VALUE)")
return
}
sess := session.Must(session.NewSessionWithOptions(session.Options{
SharedConfigState: session.SharedConfigEnable,
}))
svc := ec2.New(sess)
result, err := MakeInstance(svc, name, value)
if err != nil {
fmt.Println("Got an error creating an instance with tag " + *name)
return
}
fmt.Println("Created tagged instance with ID " + *result.Instances[0].InstanceId)
}