Etherpad

http://etherpad.org/

Configure

export DB_PASSWORD=$(openssl rand -base64 32)
echo ETHERPAD_DB_PASSWORD=$DB_PASSWORD >> .env
echo ETHERPAD_TITLE=Bloc Note >> .env
echo ETHERPAD_DB_HOST=db >> .env
echo ETHERPAD_DB_TYPE=postgres >> .env
echo ETHERPAD_DB_USER=etherpad >> .env
echo ETHERPAD_DB_PORT=5432 >> .env
echo POSTGRES_USER=etherpad >> .env
echo POSTGRES_PASSWORD=$DB_PASSWORD >> .env

Deploy

docker-compose up -d