Cannot access airflow web server via AWS load balancer HTTPS because airflow redirects me to HTTP

Question

I have an airflow web server configured at EC2, it listens at port 8080.

I have an AWS ALB(application load balancer) in front of the EC2, listen at https 80 (facing

Answer 1

User user389955 own solution is probably the best approach, but for anyone looking for a quick fix (or want a better idea on what is going on), this seems to be the culprit.

In the following file (python distro may differ):

/usr/local/lib/python3.5/dist-packages/gunicorn/config.py

The following section prevents forwarded for headers from anything other than local

class ForwardedAllowIPS(Setting):
    name = "forwarded_allow_ips"
    section = "Server Mechanics"
    cli = ["--forwarded-allow-ips"]
    meta = "STRING"
    validator = validate_string_to_list
    default = os.environ.get("FORWARDED_ALLOW_IPS", "127.0.0.1")
    desc = """\
        Front-end's IPs from which allowed to handle set secure headers.
        (comma separate).

        Set to ``*`` to disable checking of Front-end IPs (useful for setups
        where you don't know in advance the IP address of Front-end, but
        you still trust the environment).

        By default, the value of the ``FORWARDED_ALLOW_IPS`` environment
        variable. If it is not defined, the default is ``"127.0.0.1"``.
        """

Changing from 127.0.0.1 to specific IP's or * if IP's unknown will do the trick.

At this point, I haven't found a way to set this parameter from within airflow config itself. If I find a way, will update my answer.