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Using AWSCognito and unable to get environment for DOMAIN

See original GitHub issue

So i’m using TLJH

Running the config

root@ip-172-*.*.*:/home/ubuntu# tljh-config show
users:
  admin:
  - insightadmin
auth:
  type: oauthenticator.awscognito.AWSCognitoAuthenticator

With this config…

root@ip-172.*.*.*:/home/ubuntu# cat /opt/tljh/config/jupyterhub_config.d/awscognito.py
c.AWSCognitoAuthenticator.client_id=‘********’
c.AWSCognitoAuthenticator.client_secret=‘********’
c.AWSCognitoAuthenticator.oauth_callback_url='https://myhub/hub/oauth_callback'
c.AWSCognitoAuthenticator.username_key='username'
c.AWSCognitoAuthenticator.oauth_logout_redirect_url='https://myhub/hub/logout

root@ip-172-*.*.*:/home/ubuntu# printenv | grep AWS
AWSCOGNITO_DOMAIN=myhub.auth.eu-west-1.amazoncognito.com

When I hit the site, it doesn’t pick up the environment variable and I get

https://none/oauth2/authorize?response_type=code&redirect_uri=

If I hard code the url into

https://github.com/jupyterhub/oauthenticator/blob/master/oauthenticator/awscognito.py#L53

i.e. change

AWSCOGNITO_DOMAIN = os.getenv('AWSCOGNITO_DOMAIN')

AWSCOGNITO_DOMAIN = 'myhub.auth.eu-west-1.amazoncognito.com'

It works fine, where am I missing setting the environment variable ?

I’ve tried it in /etc/environment and running

export AWSCOGNITO_DOMAIN=myhub.auth.eu-west-1.amazoncognito.com'

all to no avail…

And testing it in python gives

root@ip-172-*.*.*:/home/ubuntu# python3
Python 3.6.9 (default, Nov  7 2019, 10:44:02)
[GCC 8.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import os
>>> print(os.getenv('AWSCOGNITO_DOMAIN'))
myhub.auth.eu-west-1.amazoncognito.com

Any help would be great.