CentOS 7.0ホストのDocker 1.3.2で確認。 Dockerはデフォルトでは各コンテナに10GBの(仮想)ディスクを割り当てます。 [hoge@docker ~]$ sudo docker run -it centos /bin/bash [root@8e856a8f4666 /]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/docker-8:19-134785216-8e856a8f46660e16e9ce6c1a73e937e9a7366d19bd3ac2a239324f8671642853 9.8G 260M 9.0G 3% / tmpfs 3.6G 0 3.6G 0% /dev shm 64M 0 64M 0% /dev/shm /dev/sdb3 107G 8.1G 99G 8% /et
![Dockerで各containerの初期ディスクサイズを拡張する - Qiita](https://cdn-ak-scissors.b.st-hatena.com/image/square/845fe905646fde5e43c41612d4dfef5824e1f0d0/height=288;version=1;width=512/https%3A%2F%2Fqiita-user-contents.imgix.net%2Fhttps%253A%252F%252Fcdn.qiita.com%252Fassets%252Fpublic%252Farticle-ogp-background-412672c5f0600ab9a64263b751f1bc81.png%3Fixlib%3Drb-4.0.0%26w%3D1200%26mark64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZ3PTk3MiZoPTM3OCZ0eHQ9RG9ja2VyJUUzJTgxJUE3JUU1JTkwJTg0Y29udGFpbmVyJUUzJTgxJUFFJUU1JTg4JTlEJUU2JTlDJTlGJUUzJTgzJTg3JUUzJTgyJUEzJUUzJTgyJUI5JUUzJTgyJUFGJUUzJTgyJUI1JUUzJTgyJUE0JUUzJTgyJUJBJUUzJTgyJTkyJUU2JThCJUExJUU1JUJDJUI1JUUzJTgxJTk5JUUzJTgyJThCJnR4dC1hbGlnbj1sZWZ0JTJDdG9wJnR4dC1jb2xvcj0lMjMyMTIxMjEmdHh0LWZvbnQ9SGlyYWdpbm8lMjBTYW5zJTIwVzYmdHh0LXNpemU9NTYmcz02NDQxMTI3NzQ4N2ZkZDZiYTRlYWZhMWU5Zjc0ZTBhMg%26mark-x%3D142%26mark-y%3D57%26blend64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZoPTc2Jnc9NzcwJnR4dD0lNDBkZW1wYXNvbmcmdHh0LWNvbG9yPSUyMzIxMjEyMSZ0eHQtZm9udD1IaXJhZ2lubyUyMFNhbnMlMjBXNiZ0eHQtc2l6ZT0zNiZ0eHQtYWxpZ249bGVmdCUyQ3RvcCZzPTIzYjg5ZDg0YzcwZDljOTA3MjMxZDJlMGQyMjhkYzQ5%26blend-x%3D142%26blend-y%3D486%26blend-mode%3Dnormal%26s%3Dfd092d7ef526afbb547c96177225b5d9)