AWS ECS python script to export container IAM credentials for use with various tools

awsenv.py

#!/usr/bin/env python
import os, urllib, json

uri = os.environ['AWS_CONTAINER_CREDENTIALS_RELATIVE_URI']
url = "http://169.254.170.2{}".format(uri)
data = json.loads(urllib.urlopen(url).read())

print """export AWS_ACCESS_KEY_ID={AccessKeyId}
export AWS_SECRET_ACCESS_KEY={SecretAccessKey}
export AWS_SESSION_TOKEN={Token}
""".format(**data).strip()

gistfile1.txt

eval $(/usr/bin/awsenv.py)

# AWS envvars should now be set..