InvalidInstanceId: An error occurred (InvalidInstanceId) when calling the SendCommand operation

Question

The below is the code which i am running from python to execute commands in aws ec2 instance

import boto3
ec2 = boto3.client('ssm',region_name='us-east-1',aws_access_key_id='xxxxxxxxxxxxxxx',aws_secret_access_key='xxxxxxxxx')
a = ec2.send_command(InstanceIds=ids, DocumentName='AWS-RunShellScript', Comment='abcdabcd', Parameters={"commands":["ifconfig"]})

But it is giving the below error

InvalidInstanceId: An error occurred (InvalidInstanceId) when calling the SendCommand operation: 

Answer 1

The following scenarios can result in this error message:

• Instance id is invalid (in the comments you have verified it isn't)
• Instance is in a different region (in the comments you have verified it isn't)
• Instance is not currently in the Running state
• Instance does not have the AWS SSM agent installed and running.
• instance does not have the correct iam permissions to register with ssm

You need to login to the AWS EC2/SSM console and make sure the instance(s) you are trying manage show up in the SYSTEMS MANAGER SHARED RESOURCES - Managed Instances list, and that they show a Ping status of Online. If not, you need to fix that before trying to send commands to the instance(s) in question.

You should use one of the following two policies to make sure your aws ec2 instance can register itself with ssm:

• AmazonSSMManagedInstanceCore
• AmazonSSMFullAccess