아래와 같이 ubuntu 컨테이너를 생성했다. # 아래와 같이 컨테이너 생성 후 실행 $ docker run -d -it --name airflow_test -p 8080:8080 ubuntu:20.04 Unable to find image 'ubuntu:20.04' locally 20.04: Pulling from library/ubuntu 7b1a6ab2e44d: Pull complete Digest: sha256:626ffe58f6e7566e00254b638eb7e0f3b11d4da9675088f4781a50ae288f3322 Status: Downloaded newer image for ubuntu:20.04 66053458a72903e6c59f29a66767a377fa2f9e81fa09c3ec6..