Execute shell commands in EC2 with SSM

execute_shell_ec2.py

"""
https://aws.amazon.com/blogs/aws/manage-instances-at-scale-without-ssh-access-using-ec2-run-command/
https://boto3.amazonaws.com/v1/documentation/api/latest/reference/services/ssm.html
https://stackoverflow.com/questions/34028219/how-to-execute-commands-on-aws-instance-using-boto3
"""
import boto3

# Need AWS credentials in ~/.aws...
ssm = boto3.client('ssm')

response = ssm.send_command(
    DocumentName='AWS-RunShellScript', 
    Parameters={
        'commands': ['ls -al']
    }, 
    InstanceIds=['i-XXXXXXXXXXXXXXX']
)
 output = ssm.get_command_invocation(
     CommandId=response['Command']['CommandId'], 
     InstanceId='i-XXXXXXXXXXXXXXX'
 )
    
stdout = output['StandardOutputContent']
lines = stdout.split('\n')

for line in lines:
    print(line)