AWSSupport-ExecuteEC2Rescue
Description
This runbook uses the EC2Rescue tool to troubleshoot and, where possible, repair common connectivity issues with the specified Amazon Elastic Compute Cloud (Amazon EC2) instance for Linux or Windows Server. Instances with encrypted root volumes are not supported.
Document type
Automation
Owner
Amazon
Platforms
Linux, macOS, Windows
Parameters
-
AutomationAssumeRole
Type: String
Description: (Optional) The Amazon Resource Name (ARN) of the Amazon Identity and Access Management (IAM) role that allows Systems Manager Automation to perform the actions on your behalf. If no role is specified, Systems Manager Automation uses the permissions of the user that starts this runbook.
-
EC2RescueInstanceType
Type: String
Valid values: t2.small | t2.medium | t2.large
Default: t2.small
Description: (Required) The EC2 instance type for the EC2Rescue instance. Recommended size:
t2.small
-
LogDestination
Type: String
Description: (Optional) Amazon S3 bucket name in your account where you want to upload the troubleshooting logs. Make sure the bucket policy does not grant unnecessary read/write permissions to parties that do not need access to the collected logs.
-
SubnetId
Type: String
Default: CreateNewVPC
Description: (Optional) The subnet ID for the EC2Rescue instance. By default, Amazon Systems Manager Automation creates a new VPC. Alternatively, use
SelectedInstanceSubnet
to use the same subnet as your instance, or specify a custom subnet ID.Important
The subnet must be in the same Availability Zone as
UnreachableInstanceId
, and it must allow access to the SSM endpoints. -
UnreachableInstanceId
Type: String
Description: (Required) ID of your unreachable EC2 instance.
Important
Systems Manager Automation stops this instance, and creates an AMI before attempting any operations. Data stored in instance store volumes will be lost. The public IP address will change if you are not using an Elastic IP address.
Required IAM permissions
The AutomationAssumeRole
parameter requires the following actions to
use the runbook successfully.
You must have at least ssm:StartAutomationExecution
and
ssm:GetAutomationExecution
to be able to read the automation output. For
more information about the required permissions, see AWSSupport-StartEC2RescueWorkflow.
Document Steps
-
aws:assertAwsResourceProperty
- Asserts if the provided instance is Windows Server:-
(EC2Rescue for Windows Server) If the provided instance is a Windows Server instance:
-
aws:executeAutomation
- InvokesAWSSupport-StartEC2RescueWorkflow
with the EC2Rescue for Windows Server offline script. -
aws:executeAwsApi
- Retrieves the backup AMI ID from the nested automation. -
aws:executeAwsApi
- Retrieves the EC2Rescue summary from the nested automation.
-
-
(EC2Rescue for Linux) If the provided instance is a Linux instance:
-
aws:executeAutomation
- InvokesAWSSupport-StartEC2RescueWorkflow
with the EC2Rescue for Linux offline scripts -
aws:executeAwsApi
- Retrieves the backup AMI ID from the nested automation. -
aws:executeAwsApi
- Retrieves the EC2Rescue summary from the nested automation.
-
-
Outputs
getEC2RescueForWindowsResult.Output
getWindowsBackupAmi.ImageId
getEC2RescueForLinuxResult.Output
getLinuxBackupAmi.ImageId