Added: Example .env

.env_example

@@ -0,0 +1,27 @@
+# THIS IS AN EXAMPLE
+# CHANGE IT IN PRODUCTION
+
+# Postgres Setup
+POSTGRES_DB=jupyter
+POSTGRES_USER=jupyter
+POSTGRES_PASSWORD=1234
+
+# Jupyter Setup (Run openssl rand -hex 32)
+JUPYTERHUB_CRYPT_KEY=5bb3affb5036422b0ac201e9cadde6ab783c7742861006c04e65e46d2bf3564b
+JUPYTERHUB_AUTH_TOKEN=c546bb0e1dbcb73b41092b2e7e46fa69f8c031c14ea0cd94cc6696349ffacceb
+LOG_LEVEL=INFO
+JUPYTERHUB_BASE_URL=/jupyter/
+NATIVE_AUTH_MIN_PASSWORD_LENGTH=8 
+JUPYTERHUB_ADMIN_USER=admin
+ENABLE_LAB=1
+SPAWNER_DEFAULT_URL=/lab
+NOTEBOOK_MEMORY_LIMIT=500M 
+NOTEBOOK_CPU_LIMIT=1.0
+HUB_IP=jupyterhub # Name of the Docker container
+
+# Docker
+DOCKER_NETWORK_NAME=jupyter_network
+POSTGRES_PORT=5432
+JUPYTERHUB_PORT=8000
+NGINX_HTTP_PORT=8080 
+NGINX_HTTPS_PORT=8443