airflow 스터디 환경 구현 최소 4g ram 필요해서 8g t2.large로 ec2 생성 docker, docker-compose 설치 docker install 4 sudo yum -y upgrade 5 sudo yum -y install docker 7 sudo service docker start 9 sudo usermod -aG docker ec2-user 22 exit docker-compose install 26 sudo curl -L https://github.com/docker/compose/releases/download/1.25.0-rc2/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose 27 sudo ch..