diff --git a/changelog.d/20221128_100809_regis_mongodb_ssl.md b/changelog.d/20221128_100809_regis_mongodb_ssl.md
new file mode 100644
index 0000000..07d4ffb
--- /dev/null
+++ b/changelog.d/20221128_100809_regis_mongodb_ssl.md
@@ -0,0 +1 @@
+- [Feature] Add support for MongoDB SSL, authentication source, mechanism and replica set via the `MONGODB_USE_SSL`, `MONGODB_AUTH_MECHANISM`, `MONGODB_AUTH_SOURCE`, `MONGODB_REPLICA_SET` settings. (by @zakum1 and @regisb)
diff --git a/docs/configuration.rst b/docs/configuration.rst
index fea8142..c3384cf 100644
--- a/docs/configuration.rst
+++ b/docs/configuration.rst
@@ -242,11 +242,17 @@ MongoDB
 *******
 
 - ``RUN_MONGODB`` (default: ``true``)
-- ``MONGODB_HOST`` (default: ``"mongodb"``)
 - ``MONGODB_DATABASE`` (default: ``"openedx"``)
+- ``MONGODB_HOST`` (default: ``"mongodb"``)
+- ``MONGODB_PASSWORD`` (default: ``""``)
 - ``MONGODB_PORT`` (default: ``27017``)
 - ``MONGODB_USERNAME`` (default: ``""``)
-- ``MONGODB_PASSWORD`` (default: ``""``)
+- ``MONGODB_USE_SSL`` (default: ``false``)
+- ``MONGODB_REPLICA_SET`` (default: ``""``)
+- ``MONGODB_AUTH_MECHANISM`` (default: ``""``)
+- ``MONGODB_AUTH_SOURCE`` (default: ``"admin"``)
+
+Note that most of these settings will have to be modified to connect to a MongoDB cluster that runs separately of Tutor, such as `Atlas <https://www.mongodb.com/atlas>`__. In particular, the authentication source, mechanism and the SSL connection parameters should not be specified as part of the `host URI <https://www.mongodb.com/docs/manual/reference/connection-string/>`__ but as separate Tutor settings. Supported values for ``MONGODB_AUTH_MECHANISM`` are the same as for pymongo (see the `pymongo documentation <https://pymongo.readthedocs.io/en/stable/examples/authentication.html>`__).
 
 Redis
 *****
diff --git a/tutor/templates/apps/openedx/settings/partials/common_all.py b/tutor/templates/apps/openedx/settings/partials/common_all.py
index 7f4368d..b225199 100644
--- a/tutor/templates/apps/openedx/settings/partials/common_all.py
+++ b/tutor/templates/apps/openedx/settings/partials/common_all.py
@@ -6,17 +6,16 @@ from xmodule.modulestore.modulestore_settings import update_module_store_setting
 
 # Mongodb connection parameters: simply modify `mongodb_parameters` to affect all connections to MongoDb.
 mongodb_parameters = {
+    "db": "{{ MONGODB_DATABASE }}",
     "host": "{{ MONGODB_HOST }}",
     "port": {{ MONGODB_PORT }},
-    {% if MONGODB_USERNAME and MONGODB_PASSWORD %}
-    "user": "{{ MONGODB_USERNAME }}",
-    "password": "{{ MONGODB_PASSWORD }}",
-    {% else %}
-    "user": None,
-    "password": None,
-    {% endif %}
-    "db": "{{ MONGODB_DATABASE }}",
-    "replicaSet": None,
+    "user": {% if MONGODB_USERNAME %}"{{ MONGODB_USERNAME }}"{% else %}None{% endif %},
+    "password": {% if MONGODB_PASSWORD %}"{{ MONGODB_PASSWORD }}"{% else %}None{% endif %},
+    # Connection/Authentication
+    "ssl": {{ MONGODB_USE_SSL }},
+    "authSource": "{{ MONGODB_AUTH_SOURCE }}",
+    "replicaSet": {% if MONGODB_REPLICA_SET %}"{{ MONGODB_REPLICA_SET }}"{% else %}None{% endif %},
+    {% if MONGODB_AUTH_MECHANISM %}"authMechanism": "{{ MONGODB_AUTH_MECHANISM }}",{% endif %}
 }
 DOC_STORE_CONFIG = mongodb_parameters
 CONTENTSTORE = {
diff --git a/tutor/templates/config/defaults.yml b/tutor/templates/config/defaults.yml
index af9adfb..385013b 100644
--- a/tutor/templates/config/defaults.yml
+++ b/tutor/templates/config/defaults.yml
@@ -34,11 +34,15 @@ K8S_NAMESPACE: "openedx"
 LANGUAGE_CODE: "en"
 LMS_HOST: "www.myopenedx.com"
 LOCAL_PROJECT_NAME: "{{ TUTOR_APP }}_local"
+MONGODB_AUTH_MECHANISM: ""
+MONGODB_AUTH_SOURCE: "admin"
 MONGODB_HOST: "mongodb"
 MONGODB_DATABASE: "openedx"
 MONGODB_PORT: 27017
 MONGODB_USERNAME: ""
 MONGODB_PASSWORD: ""
+MONGODB_REPLICA_SET: ""
+MONGODB_USE_SSL: false
 OPENEDX_AWS_ACCESS_KEY: ""
 OPENEDX_AWS_SECRET_ACCESS_KEY: ""
 OPENEDX_CACHE_REDIS_DB: 1