Control read only mode with environmental variable #11710 (#11711)

* Add env-var to override the readonly mode

* Fix flake8 issue

* Add test coverage

* Add test coverage

* Add test coverage

* Fix broken test

Author: mattiagiupponi

.env.sample

@@ -253,3 +253,5 @@ RESTART_POLICY_WINDOW=120s
 
 DEFAULT_MAX_UPLOAD_SIZE=5368709120
 DEFAULT_MAX_PARALLEL_UPLOADS_PER_USER=5
+
+# FORCE_READ_ONLY_MODE=False Override the read-only value saved in the configuration

geonode/base/tests.py

@@ -666,6 +666,17 @@ def test_maintenance_true(self):
 
         self.assertEqual(response.status_code, 503, "User is allowed to get index page")
 
+    @patch.dict(os.environ, {"FORCE_READ_ONLY_MODE": "True"})
+    def test_readonly_overwrite_by_env(self):
+        config = Configuration.load()
+        self.assertTrue(config.read_only)
+
+    @patch.dict(os.environ, {"FORCE_READ_ONLY_MODE": "False"})
+    def test_readonly_is_not_overwrite_by_env(self):
+        # will take the value from the db
+        config = Configuration.load()
+        self.assertFalse(config.read_only)
+
 
 class TestOwnerRightsRequestUtils(TestCase):
     def setUp(self):

geonode/singleton.py

@@ -20,6 +20,8 @@
 
 # Geonode functionality
 
+import os
+import ast
 from django.db import models
 
 
@@ -38,6 +40,9 @@ class Meta:
     @classmethod
     def load(cls):
         obj, _ = cls.objects.get_or_create(pk=1)
+        val = os.getenv("FORCE_READ_ONLY_MODE", None)
+        if val is not None:
+            setattr(obj, "read_only", ast.literal_eval(val))
         return obj
 
     def save(self, *args, **kwargs):