Forked from lrakai/lambda-aws-ssm-run-command-on-ec2-instance.py
Created
November 13, 2020 03:30
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Run commands on EC2 instances using Lambda and Systems Manager (SendCommand)
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import boto3 | |
import botocore | |
import time | |
def handler(event=None, context=None): | |
client = boto3.client('ssm') | |
instance_id = 'i-07362a00952fca213' # hard-code for example | |
response = client.send_command( | |
InstanceIds=[instance_id], | |
DocumentName='AWS-RunShellScript', | |
Parameters={ | |
'commands': [ | |
# Simple test if a file exists | |
'if [ -e /etc/hosts ]; then echo -n True; else echo -n False; fi' | |
] | |
} | |
) | |
command_id = response['Command']['CommandId'] | |
tries = 0 | |
output = 'False' | |
while tries < 10: | |
tries = tries + 1 | |
try: | |
time.sleep(0.5) # some delay always required... | |
result = client.get_command_invocation( | |
CommandId=command_id, | |
InstanceId=instance_id, | |
) | |
if result['Status'] == 'InProgress': | |
continue | |
output = result['StandardOutputContent'] | |
break | |
except client.exceptions.InvocationDoesNotExist: | |
continue | |
return output == 'True' |
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