export GITHUB_CLIENT_ID=
export GITHUB_CLIENT_SECRET=
export OAUTH_CALLBACK_URL="http://localhost:8000/hub/oauth_callback"
export EVERWARE_WHITELIST="whitelist.txt"
export EMAIL_SUPPORT_ADDR=
export EMAIL_FROM_ADDR=
export DEFAULT_DOCKER_IMAGE="yandexdataschool/neurohack-jupyter:2016.12"