get-ssm-parameters.py

import os
import sys
import boto3

def getParameter():
    region = sys.argv[1]
    param = sys.argv[2]

    ssm = boto3.client('ssm',
        region_name=region
    )

    response = ssm.get_parameters(
        Names=[
            param,
        ],
        WithDecryption=True
    )

    if not response['Parameters']:
        print "Error retriving parameter for %s" % param
        sys.exit()

    param_value = response['Parameters'][0]['Value']

    print param_value

def usage():
    print ("""
    This program retrieves a secure parameter from AWS' SSM service.

    Usage: python get-ssm-parameters.py $aws-region $parameter-name`
    """)

if __name__ == '__main__':
    if len(sys.argv) != 3:
        usage()
        sys.exit()
    else:
        getParameter()