docs: Omgevingsvariabelen

Documenteer omgevingsvariabelen in .env.example en herstructureer de
andere .examples om gebruik te maken van dezelfde structuur.

backend/.env.production.example

@@ -1,28 +1,37 @@
-DWENGO_PORT=3000 # The port the backend will listen on
-DWENGO_DB_HOST=db # Name of the database container
-DWENGO_DB_PORT=5431
+#
+# Production environment configuration
+#
+# Change the values of the variables below to match your production environment!
+# See .env.example for more information.
+#
 
-# Change this to the actual credentials of the user Dwengo should use in the backend
+### Dwengo ###
+
+DWENGO_PORT=3000
+#DWENGO_LEARNING_CONTENT_REPO_API_BASE_URL=https://dwengo.org/backend/api
+#DWENGO_FALLBACK_LANGUAGE=nl
+DWENGO_RUN_MODE=prod
+
+DWENGO_DB_HOST=db
+DWENGO_DB_PORT=5432
 DWENGO_DB_NAME=postgres
 DWENGO_DB_USERNAME=postgres
 DWENGO_DB_PASSWORD=postgres
-
-# Set this to true when the database scheme needs to be updated. In that case, take a backup first.
 DWENGO_DB_UPDATE=false
+#DWENGO_DB_CONTENT_PREFIX=u_
 
-# Data for the identity provider via which the students authenticate.
 DWENGO_AUTH_STUDENT_URL=https://sel2-1.ugent.be/idp/realms/student
 DWENGO_AUTH_STUDENT_CLIENT_ID=dwengo
 DWENGO_AUTH_STUDENT_JWKS_ENDPOINT=http://idp:7080/idp/realms/student/protocol/openid-connect/certs # Name of the idp container
-# Data for the identity provider via which the teachers authenticate.
 DWENGO_AUTH_TEACHER_URL=https://sel2-1.ugent.be/idp/realms/teacher
 DWENGO_AUTH_TEACHER_CLIENT_ID=dwengo
 DWENGO_AUTH_TEACHER_JWKS_ENDPOINT=http://idp:7080/idp/realms/teacher/protocol/openid-connect/certs # Name of the idp container
+#DWENGO_AUTH_AUDIENCE=account
 
-#
-# Advanced configuration
-#
+#DWENGO_CORS_ALLOWED_ORIGINS=
+#DWENGO_CORS_ALLOWED_HEADERS=Authorization,Content-Type
 
-# Logging and monitoring
+### Advanced configuration ###
 
-# LOKI_HOST=http://logging:3102 # The address of the Loki instance, used for logging
+DWENGO_LOGGING_LEVEL=info
+DWENGO_LOGGING_LOKI_HOST=http://logging:3102