[FIX] core: wsgi application entrypoint moved

The wsgi application entrypoint moved during the [httpocalypse]. Some
clients don't use the odoo builtin wsgi server and have troubles
upgrading from 15.0 to 16.0 because the `odoo.service.wsgi_server`
module doesn't exist anymore.

[httpocalypse]: https://github.com/odoo/odoo/pull/78857

closes odoo/odoo#106187

X-original-commit: 4e5d7d2e93fcd082bd1b3a9e76cedab85b46f456
Signed-off-by: Julien Castiaux <juc@odoo.com>

odoo/service/__init__.py

@@ -5,6 +5,9 @@ from . import db
 from . import model
 from . import server
 
+# deprecated since 15.3
+from . import wsgi_server
+
 #.apidoc title: RPC Services
 
 """ Classes of this module implement the network protocols that the

odoo/service/wsgi_server.py

@@ -0,0 +1,11 @@
+import warnings
+import odoo.http
+
+
+def application(environ, start_response):
+
+    warnings.warn("The WSGI application entrypoint moved from "
+                  "odoo.service.wsgi_server.application to odoo.http.root "
+                  "in 15.3.",
+                  DeprecationWarning, stacklevel=1)
+    return odoo.http.root(environ, start_response)

setup/odoo-wsgi.example.py

@@ -25,8 +25,7 @@ conf = odoo.tools.config
 
 # Path to the OpenERP Addons repository (comma-separated for
 # multiple locations)
-
-conf['addons_path'] = '../../addons/trunk,../../web/trunk/addons'
+#conf['addons_path'] = './odoo/addons,./addons'
 
 # Optional database config if not using local socket
 #conf['db_name'] = 'mycompany'
@@ -38,7 +37,7 @@ conf['addons_path'] = '../../addons/trunk,../../web/trunk/addons'
 #----------------------------------------------------------
 # Generic WSGI handlers application
 #----------------------------------------------------------
-application = odoo.service.wsgi_server.application
+application = odoo.http.root
 
 odoo.service.server.load_server_wide_modules()