Enable LMS sysadmin dashboard by default

The dashboard is available at /sysadmin. It's a CRUD interface for
managing users and courses.

Enabling this interface required that the DATA_DIR setting was not a
string, but a Path object.

Close #353.

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 Note: Breaking changes between versions are indicated by "💥".
 
+## Unreleased
+
+- [Feature] Enable sysadmin dashboard in LMS at /sysadmin
+
 ## v10.0.10 (2020-07-01)
 
 - [Bugfix] Fix pycontracts installation error when building openedx Docker image

tutor/templates/apps/openedx/config/lms.env.json

@@ -18,6 +18,7 @@
     "ENABLE_GRADE_DOWNLOADS": true,
     "ENABLE_MOBILE_REST_API": true,
     "ENABLE_OAUTH2_PROVIDER": true,
+    "ENABLE_SYSADMIN_DASHBOARD": true,
     "ENABLE_THIRD_PARTY_AUTH": true
   },
   "LMS_ROOT_URL": "{{ "https" if ACTIVATE_HTTPS else "http" }}://{{ LMS_HOST }}",

tutor/templates/apps/openedx/settings/partials/common_all.py

@@ -17,7 +17,7 @@ API_ACCESS_FROM_EMAIL = ENV_TOKENS["CONTACT_EMAIL"]
 
 # Load module store settings from config files
 update_module_store_settings(MODULESTORE, doc_store_settings=DOC_STORE_CONFIG)
-DATA_DIR = "/openedx/data/"
+DATA_DIR = path("/openedx/data/")
 for store in MODULESTORE["default"]["OPTIONS"]["stores"]:
    store["OPTIONS"]["fs_root"] = DATA_DIR