The following instructions for enabling Azure SSO for Apache Airflow nearly take you all the way - but fall short a couple of details around the configuration of airflow itself:
https://objectpartners.com/2021/12/24/enterprise-auth-for-airflow-azure-ad
All the "Azure" instructions there can be safely followed - the resulting webserver_config.py
(which can be injected into a dockerised Airflow in /opt/airflow/webserver_config.py
) can be built from the following:
from __future__ import annotations
import os
from airflow.www.fab_security.manager import AUTH_OAUTH
from airflow.www.security import AirflowSecurityManager
from airflow.utils.log.logging_mixin import LoggingMixin
basedir = os.path.abspath(os.path.dirname(__file__))
# Flask-WTF flag for CSRF
WTF_CSRF_ENABLED = True
WTF_CSRF_TIME_LIMIT = None
AUTH_TYPE = AUTH_OAUTH
OAUTH_PROVIDERS = [{
'name':'Microsoft Azure AD',
'token_key':'access_token',
'icon':'fa-windows',
'remote_app': {
'api_base_url': "https://login.microsoftonline.com/{}".format(os.getenv("AAD_TENANT_ID")),
'request_token_url': None,
'request_token_params': {
'scope': 'openid email profile'
},
'access_token_url': "https://login.microsoftonline.com/{}/oauth2/v2.0/token".format(os.getenv("AAD_TENANT_ID")),
"access_token_params": {
'scope': 'openid email profile'
},
'authorize_url': "https://login.microsoftonline.com/{}/oauth2/v2.0/authorize".format(os.getenv("AAD_TENANT_ID")),
"authorize_params": {
'scope': 'openid email profile'
},
'client_id': os.getenv("AAD_CLIENT_ID"),
'client_secret': os.getenv("AAD_CLIENT_SECRET"),
'jwks_uri': 'https://login.microsoftonline.com/common/discovery/v2.0/keys'
}
}]
AUTH_USER_REGISTRATION_ROLE = "Public"
AUTH_USER_REGISTRATION = True
AUTH_ROLES_SYNC_AT_LOGIN = True
AUTH_ROLES_MAPPING = {
"airflow_prod_admin": ["Admin"],
"airflow_prod_user": ["Op"],
"airflow_prod_viewer": ["Viewer"]
}
class AzureCustomSecurity(AirflowSecurityManager, LoggingMixin):
def get_oauth_user_info(self, provider, response=None):
me = self._azure_jwt_token_parse(response["id_token"])
return {
"name": me["name"],
"email": me["email"],
"first_name": me["given_name"],
"last_name": me["family_name"],
"id": me["oid"],
"username": me["preferred_username"],
"role_keys": me["roles"]
}
# the first of these two appears to work with older Airflow versions, the latter newer.
FAB_SECURITY_MANAGER_CLASS = 'webserver_config.AzureCustomSecurity'
SECURITY_MANAGER_CLASS = AzureCustomSecurity
The above assumes environment variables are configured for the OAuth client secret, etc - and has been tested thoroughly and confirmed working.
Note the roles need to match what you configured in Azure (the example above is using airflow_prod_user
etc, in deviation to the linked article above).
A working version as of May 2024, with latest comments from everyone here and a comment in the code on how to map roles between Airflow
roles
and Microsoft Entra IDApp roles
. It was tested againstapache/airflow:2.9.1-python3.12
.App Roles assignment
App Registration
in the Azure PortalRole
in theApp Roles blade
namedAdmin
with valueAdmin
, you can also create the other roles you need e.g.: Op, Viewer, Public, or custom role etc. The values are taken from theAUTH_ROLES_MAPPING
in the code below.Enterprise Application
of yourApp Registration
and assign theAdmin
role to the user or group of your choice using theUsers and Groups
bladeredirect URIs
configured in theAuthentication
blade e.g.: http://localhost:8080/oauth-authorized/azure