import os.path
from pprint import pprint

from libcloud.compute.types import Provider
from libcloud.compute.providers import get_driver

import libcloud.security

HTTPS_PROXY_URL_NO_AUTH = 'https://<proxy hostname 1>:<proxy port 2>'

# 1. Use a custom CA bundle which is used by proxy server
# This example uses CA cert bundle used by mitmproxy proxy server
libcloud.security.CA_CERTS_PATH = os.path.expanduser(
    '~/.mitmproxy/mitmproxy-ca-cert.pem')

# User an https proxy for subsequent requests
cls = get_driver(Provider.RACKSPACE)
driver = cls('username', 'api key')

driver.connection.connection.set_http_proxy(proxy_url=HTTPS_PROXY_URL_NO_AUTH)
pprint(driver.list_nodes())