Additional Info > Managed instances

Some operations require instances to be managed by AWS Systems Manager. Instances are managed when they are listed in the managed instances list at https://console.aws.amazon.com/systems-manager/managed-instances.

To check if your instance supports Systems Manager, please refer to https://docs.aws.amazon.com/systems-manager/latest/userguide/systems-manager-prereqs.html.

If an instance is not managed by Systems Manager, check the following:

1.The instance supports Systems Manager. You can view detailed Systems Manager prerequisites at https://docs.aws.amazon.com/systems-manager/latest/userguide/systems-manager-prereqs.html. Specifically, check the supported operating system and region.

2.The SSM Agent is running on a target instance. SSM Agent availability depends on an instance’s platform:

a.Windows

i.SSM Agent is installed by default on Windows Server 2016 instances and instances created from Windows Server 2003-2012 R2 AMIs published in November 2016 or later.

ii.If the SSM Agent is not installed, you can install it manually using this guide: https://docs.aws.amazon.com/systems-manager/latest/userguide/sysman-install-ssm-win.html

b.Linux

i.The SSM Agent is installed by default on Amazon Linux base AMIs dated 2017.09 and later. The SSM Agent is also installed by default on Amazon Linux 2 and Ubuntu Server 8.04 LTS AMIs.

ii.You must manually install the SSM Agent on other versions of Linux, including non-base images like Amazon ECS-Optimized AMIs. Please see the installation guide: https://docs.aws.amazon.com/systems-manager/latest/userguide/sysman-install-ssm-agent.html

3.IAM role with appropriate permissions is attached to an instance. For example, you can use “AmazonEC2RoleforSSM” role provided by AWS.