Access MaaS metadata API by querying credential first

maas-access-metadata-api.py

#!/usr/bin/env python3
#
# cat /proc/cmdline
#
# to know the content of the option cloud-config-url to get preseed by curl
# and then fill in the following variables
#
# Finally, use the output in the following command:
#   curl -H '<output>' <endpoint>
#
# You shall get the metadata if it is available.
#
import oauthlib.oauth1 as oauth1
import time


# Fill in me
consumer_key = ''
token_key = ''
token_secret = ''
endpoint = ''


client = oauth1.Client(consumer_key, client_secret='',
                       resource_owner_key=token_key, resource_owner_secret=token_secret,
                       signature_method=oauth1.SIGNATURE_PLAINTEXT,
                       timestamp=str(int(time.time())))
for k, v in client.sign(endpoint)[1].items():
    print("%s: %s" % (k, v))