check_hobos: set idp session cookie name (#42878)

tests/test_hobo.py

@@ -357,6 +357,7 @@ def test_configure_authentication_methods(http_requests):
     assert pub.cfg['sp']['idp-manage-user-attributes']
     assert pub.cfg['sp']['idp-manage-roles']
     assert pub.get_site_option('idp_account_url', 'variables').endswith('/accounts/')
+    assert pub.get_site_option('idp_session_cookie_name') ==  'a2-opened-session-5aef2f'
 
 
 def test_deploy():

wcs/ctl/check_hobos.py

@@ -409,6 +409,8 @@ class CmdCheckHobos(Command):
                 variables['idp_account_url'] = service_url + 'accounts/'
                 variables['idp_api_url'] = service_url + 'api/'
                 variables['idp_registration_url'] = service_url + 'accounts/register/'
+                idp_hash = hashlib.md5(force_bytes(service_url)).hexdigest()[:6]
+                config.set('options', 'idp_session_cookie_name', 'a2-opened-session-%s' % idp_hash)
 
             if service.get('secondary'):
                 continue