/
RebootInstancesv2.go
79 lines (65 loc) · 2.26 KB
/
RebootInstancesv2.go
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// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX - License - Identifier: Apache - 2.0
// snippet-start:[ec2.go-v2.RebootInstances]
package main
import (
"context"
"errors"
"flag"
"fmt"
"github.com/aws/aws-sdk-go-v2/config"
"github.com/aws/aws-sdk-go-v2/service/ec2"
"github.com/aws/smithy-go"
)
// EC2RebootInstancesAPI defines the interface for the RebootInstances function.
// We use this interface to test the function using a mocked service.
type EC2RebootInstancesAPI interface {
RebootInstances(ctx context.Context,
params *ec2.RebootInstancesInput,
optFns ...func(*ec2.Options)) (*ec2.RebootInstancesOutput, error)
}
// RebootInstance reboots an Amazon Elastic Compute Cloud (Amazon EC2) instance.
// 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 RebootInstancesOutput object containing the result of the service call and nil.
// Otherwise, nil and an error from the call to RebootInstances.
func RebootInstance(c context.Context, api EC2RebootInstancesAPI, input *ec2.RebootInstancesInput) (*ec2.RebootInstancesOutput, error) {
resp, err := api.RebootInstances(c, input)
var apiErr smithy.APIError
if errors.As(err, &apiErr) && apiErr.ErrorCode() == "DryRunOperation" {
fmt.Println("User has permission to enable monitoring.")
input.DryRun = false
return api.RebootInstances(c, input)
}
return resp, err
}
func main() {
instanceID := flag.String("i", "", "The ID of the instance to reboot")
flag.Parse()
if *instanceID == "" {
fmt.Println("You must supply an instance ID (-i INSTANCE-ID")
return
}
cfg, err := config.LoadDefaultConfig(context.TODO())
if err != nil {
panic("configuration error, " + err.Error())
}
client := ec2.NewFromConfig(cfg)
input := &ec2.RebootInstancesInput{
InstanceIds: []string{
*instanceID,
},
DryRun: true,
}
_, err = RebootInstance(context.TODO(), client, input)
if err != nil {
fmt.Println("Got an error rebooting the instance")
fmt.Println(err)
return
}
fmt.Println("Rebooted instance with ID " + *instanceID)
}
// snippet-end:[ec2.go-v2.RebootInstances]