今までのデータは消えるでしょう。結果として失敗。
環境
Kernel Version: 4.20.15-200.fc29.x86_64
Operating System: Fedora 29.20190318.0 (Atomic Host)
[root@localhost core]# docker info
Containers: 0
Running: 0
Paused: 0
Stopped: 0
Images: 0
Server Version: 1.13.1
Storage Driver: overlay2
Backing Filesystem: xfs
Supports d_type: true
インストール直後でのテスト
[root@localhost core]# docker run --storage-opt size=5g -t -i ubuntu /bin/bash
Unable to find image 'ubuntu:latest' locally
Trying to pull repository docker.io/library/ubuntu ...
sha256:017eef0b616011647b269b5c65826e2e2ebddbe5d1f8c1e56b3599fb14fabec8: Pulling from docker.io/library/ubuntu
898c46f3b1a1: Pull complete
63366dfa0a50: Pull complete
041d4cd74a92: Pull complete
6e1bee0f8701: Pull complete
Digest: sha256:017eef0b616011647b269b5c65826e2e2ebddbe5d1f8c1e56b3599fb14fabec8
Status: Downloaded newer image for docker.io/ubuntu:latest
/usr/bin/docker-current: Error response from daemon: --storage-opt is supported only for overlay over xfs with 'pquota' mount option.
See '/usr/bin/docker-current run --help'.
sudo vi /etc/default/grub
GRUB_CMDLINE_LINUX= に「 rootflags=uquota,gquota,pquota 」を追記してください。
sudo grub2-mkconfig -o /boot/grub2/grub.cfg
sudo reboot
で適用できたが、だめ。
2
vi /etc/sysconfig/docker-storage-setup
STORAGE_DRIVER=overlay とする
service docker stop
atomic storage reset
service docker start
だめ
別ディスクを作成、fstabでpquotaを。
fdisk /dev/sdc
n Enter... w
mkfs -t xfs /dev/sdc1
vi /etc/fstab
/dev/sdc1 /var/lib/docker xfs defaults,pquota 0 0
service docker stop
#エラー防止
umount -a
atomic storage reset
service docker start
だめでした
まとめ
XFSでquotaは難しそう。
Ref
https://www.server-memo.net/centos-settings/system/quota_xfs.html
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux_atomic_host/7/html/managing_containers/managing_storage_with_docker_formatted_containers
https://qiita.com/a-killer-bee/items/564d51034c125d192df3