From 542ed0e6cfa677011667e3f56d790ff908d260d5 Mon Sep 17 00:00:00 2001
From: Adam Heinz <amh@metricwise.net>
Date: Tue, 25 Aug 2020 13:10:39 +0000
Subject: [PATCH] [ADD] Health checks for load balancers.
 https://tools.ietf.org/html/draft-inadarei-api-health-check-04

closes odoo/odoo#56522

Signed-off-by: Olivier Dony (odo) <odo@openerp.com>
---
 addons/bus/controllers/main.py  | 13 ++++++++++++-
 addons/bus/tests/__init__.py    |  1 +
 addons/bus/tests/test_health.py | 12 ++++++++++++
 addons/web/controllers/main.py  | 10 ++++++++++
 addons/web/tests/__init__.py    |  2 +-
 addons/web/tests/test_health.py | 12 ++++++++++++
 6 files changed, 48 insertions(+), 2 deletions(-)
 create mode 100644 addons/bus/tests/test_health.py
 create mode 100644 addons/web/tests/test_health.py

diff --git a/addons/bus/controllers/main.py b/addons/bus/controllers/main.py
index 99fcc82ed81..f1d45920e9c 100644
--- a/addons/bus/controllers/main.py
+++ b/addons/bus/controllers/main.py
@@ -1,4 +1,6 @@
-# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+import json
 
 from odoo import exceptions, _
 from odoo.http import Controller, request, route
@@ -42,3 +44,12 @@ class BusController(Controller):
     @route('/longpolling/im_status', type="json", auth="user")
     def im_status(self, partner_ids):
         return request.env['res.partner'].with_context(active_test=False).search([('id', 'in', partner_ids)]).read(['im_status'])
+
+    @route('/longpolling/health', type='http', auth='none', save_session=False)
+    def health(self):
+        data = json.dumps({
+            'status': 'pass',
+        })
+        headers = [('Content-Type', 'application/json'),
+                   ('Cache-Control', 'no-store')]
+        return request.make_response(data, headers)
diff --git a/addons/bus/tests/__init__.py b/addons/bus/tests/__init__.py
index 06c6ab0e440..7cd3a9d428b 100644
--- a/addons/bus/tests/__init__.py
+++ b/addons/bus/tests/__init__.py
@@ -1 +1,2 @@
 from . import test_assetsbundle
+from . import test_health
diff --git a/addons/bus/tests/test_health.py b/addons/bus/tests/test_health.py
new file mode 100644
index 00000000000..906ddc98806
--- /dev/null
+++ b/addons/bus/tests/test_health.py
@@ -0,0 +1,12 @@
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from odoo.tests import HttpCase
+
+
+class TestBusController(HttpCase):
+    def test_health(self):
+        response = self.url_open('/longpolling/health')
+        self.assertEqual(response.status_code, 200)
+        payload = response.json()
+        self.assertEqual(payload['status'], 'pass')
+        self.assertNotIn('session_id', response.cookies)
diff --git a/addons/web/controllers/main.py b/addons/web/controllers/main.py
index b5938d136d7..78bc5117a8f 100644
--- a/addons/web/controllers/main.py
+++ b/addons/web/controllers/main.py
@@ -903,6 +903,16 @@ class Home(http.Controller):
 
         return request.redirect(self._login_redirect(uid))
 
+    @http.route('/web/health', type='http', auth='none', save_session=False)
+    def health(self):
+        data = json.dumps({
+            'status': 'pass',
+        })
+        headers = [('Content-Type', 'application/json'),
+                   ('Cache-Control', 'no-store')]
+        return request.make_response(data, headers)
+
+
 class WebClient(http.Controller):
 
     @http.route('/web/webclient/locale/<string:lang>', type='http', auth="none")
diff --git a/addons/web/tests/__init__.py b/addons/web/tests/__init__.py
index 157ef045f1b..62810336e66 100644
--- a/addons/web/tests/__init__.py
+++ b/addons/web/tests/__init__.py
@@ -1,6 +1,6 @@
-# -*- coding: utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
+from . import test_health
 from . import test_image
 from . import test_js
 from . import test_menu
diff --git a/addons/web/tests/test_health.py b/addons/web/tests/test_health.py
new file mode 100644
index 00000000000..cec042b12d0
--- /dev/null
+++ b/addons/web/tests/test_health.py
@@ -0,0 +1,12 @@
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from odoo.tests import HttpCase
+
+
+class TestWebController(HttpCase):
+    def test_health(self):
+        response = self.url_open('/web/health')
+        self.assertEqual(response.status_code, 200)
+        payload = response.json()
+        self.assertEqual(payload['status'], 'pass')
+        self.assertNotIn('session_id', response.cookies)