overleaf/server-ce/config/env.sh

export CHAT_HOST=127.0.0.1
export CLSI_HOST=127.0.0.1
export DOCSTORE_HOST=127.0.0.1
export DOCUMENT_UPDATER_HOST=127.0.0.1
export DOCUPDATER_HOST=127.0.0.1
export FILESTORE_HOST=127.0.0.1
export HISTORY_V1_HOST=127.0.0.1
export NOTIFICATIONS_HOST=127.0.0.1
export PROJECT_HISTORY_HOST=127.0.0.1
export REALTIME_HOST=127.0.0.1
export WEB_HOST=127.0.0.1
export WEB_API_HOST=127.0.0.1