Add Gitpod config for CSRF origin

Supports CSRF with Django 4+ (Baby Buddy v1.10.0+).

See #393.

.gitpod.yml

@@ -6,7 +6,7 @@ tasks:
       gulp migrate &&
       gulp createcachetable
     env:
-      DJANGO_SETTINGS_MODULE: babybuddy.settings.development
+      DJANGO_SETTINGS_MODULE: babybuddy.settings.gitpod
     command: gulp
 
 ports:

babybuddy/settings/.gitignore

@@ -3,6 +3,7 @@
 !base.py
 !ci.py
 !development.py
+!gitpod.py
 !heroku.py
 !production.example.py
 !test.py

babybuddy/settings/gitpod.py

@@ -0,0 +1,9 @@
+from .development import *
+
+# CSRF configuration
+# https://docs.djangoproject.com/en/4.0/ref/settings/#std:setting-CSRF_TRUSTED_ORIGINS
+# https://www.gitpod.io/docs/environment-variables/#default-environment-variables
+
+CSRF_TRUSTED_ORIGINS = [
+    os.environ.get("GITPOD_WORKSPACE_URL").replace("https://", "https://8000-")
+]