Does not support https proxy

[jpriebe]

Our VPC requires the use of our managed HTTPS proxy for egress. I tried every possible way to set an environment variable to get the lambda to use the proxy. Nothing worked. I had to modify the code like this:

    https_proxy = os.environ.get('HTTPS_PROXY')
    proxy_definitions = {
        'https': https_proxy,
    }

    config = Config(region_name=aws_region, connect_timeout=boto_timeout, retries={'max_attempts': boto_retries}, proxies_config={'proxy_use_forwarding_for_https': True}, proxies=proxy_definitions)

The proxy_use_forwarding_for_https is the critical bit of config. It might work without the proxies and be able to get the proxy directly from the environment variable, but I didn't test that combination. I just know that nothing worked until I set proxy_use_forwarding_for_https to True.

I'm sure this could all be made more generic so that you could control the proxy config without code changes, but I just wanted to share what worked for me.