인프런 커뮤니티 질문&답변

안녕하세요. 강의 내용 알차게 잘 듣고 있습니다.
다만, 강사님과 같이 docker inspect nginx:1.28.0-alpine3.21-slim 명령을 실행했을 경우 GraphDrvier 항목을 찾을 수 없고 바로 RootFS 항목만 확인되어 질문 드립니다.

root@vagrant:~# docker images
                                                                                i Info →   U  In Use
IMAGE                          ID             DISK USAGE   CONTENT SIZE   EXTRA
nginx:1.28.0-alpine3.21-slim   ce2bd4775ed6       20.6MB         6.29MB        
root@vagrant:~# docker inspect nginx:1.28.0-alpine3.21-slim
[
    {
        "Id": "sha256:ce2bd4775ed6859d35f47d65401ee9f35f1dd00b32ed05f0ce38b68aa1830195",
        "RepoTags": [
            "nginx:1.28.0-alpine3.21-slim"
        ],
        "RepoDigests": [
            "nginx@sha256:ce2bd4775ed6859d35f47d65401ee9f35f1dd00b32ed05f0ce38b68aa1830195"
        ],
        "Comment": "buildkit.dockerfile.v0",
        "Created": "2025-08-13T16:03:17Z",
        "Config": {
            "ExposedPorts": {
                "80/tcp": {}
            },
            "Env": [
                "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
                "NGINX_VERSION=1.28.0",
                "PKG_RELEASE=1",
                "DYNPKG_RELEASE=1"
            ],
            "Entrypoint": [
                "/docker-entrypoint.sh"
            ],
            "Cmd": [
                "nginx",
                "-g",
                "daemon off;"
            ],
            "WorkingDir": "/",
            "Labels": {
                "maintainer": "NGINX Docker Maintainers <docker-maint@nginx.com>"
            },
            "StopSignal": "SIGQUIT"
        },
        "Architecture": "arm64",
        "Variant": "v8",
        "Os": "linux",
        "Size": 5802435,
        "RootFS": {
            "Type": "layers",
            "Layers": [
                "sha256:982780712fdf5e22c7ed01172785fd7059a9ec11cb375c7133dc5b06c24250ff",
                "sha256:0d43a52040463d2c8abf5dbcfdf7494c64098f7eab47f4499e759d796c66d90c",
                "sha256:b81791db8dfbab361faf2ce24c74cf8da607971931576b0ba83e2dc8755af4e8",
                "sha256:098b681d959ad46239860f217c74a463292b5262fe004da34aa0414fe885a78e",
                "sha256:12d33c2f4dc442cbdfb0c830f359cfd92e0560c34678a1198ea68f281ada2d21",
                "sha256:76a1ff61253d86aafba3fd803cc79eb75dd573fb1ee00c6f716a8ea44dcfc414",
                "sha256:734a6dcc0d105722be038d38341a5f9c30a119082eaac2fa45fb8d51eb335451"
            ]
        },
        "Metadata": {
            "LastTagTime": "2025-12-02T04:04:23.335181057Z"
        },
        "Descriptor": {
            "mediaType": "application/vnd.oci.image.index.v1+json",
            "digest": "sha256:ce2bd4775ed6859d35f47d65401ee9f35f1dd00b32ed05f0ce38b68aa1830195",
            "size": 10293
        }
    }
]