In this blog post , We have explained how to register Linux EC2 Instances with Systems Manager.

Prerequisites

In order to register Linux EC2 Instances with Systems Manager as Managed Instances , We need to execute two steps.

  • Attach SSM Role with EC2 Instances

Creating IAM Role

First We need to create an IAM Role.

To create an IAM Role , Login to IAM Console.

Form the navigation pane , Choose Roles

Register Linux EC2 Instances

Click Create role

Under Select type of trusted entity , Select AWS service and

For Choose a user case , Select EC2

Register Linux EC2 Instances

Click Next: permissions

Under Attach permission policies , Search for EC2RoleforSSM and then check AmazonEC2RoleforSSM

Register Linux EC2 Instances

Click Next: tags , You can add tags to the roles you create.

Click Next: Review , Provide a name for the IAM Role and then click Create role

Register Linux EC2 Instances

Once the required role is created , We need to attach it with the existing EC2 Instances.

Attaching IAM Role with EC2 Instance

In the previous step , We have created an required IAM role , Now we need to attach it with the respective Linux EC2 Instances.

Login to EC2 Management Console , In the navigation pane , Choose Instances.

From the Lists of Instances , Select an EC2 Instance.

Under Actions , Instance Settings , Select Attach/Replace IAM Role

Register Linux EC2 Instances

Choose the IAM Role which you have created and then click Apply

Verification

We have successfully executed the minimum requirements for the EC2 Instances to be registered under Systems manager as Managed Instances.

To verify the same , Login to Systems Manager Console.

In the navigation pane , Under Instances & Nodes

Select Managed Instances

Register Linux EC2 Instances

The Instances should be listed here.

Going forward , The Systems Manager is able to manage Linux EC2 Instances and able to execute commands , Patch Linux Instances etc.

Conclusion

We have successfully registered Linux EC2 Instances with Systems Manager and we have verified the same.

Hope you find it helpful.

Don’t forget to check out my other blogs.