docker基礎：Aufs儲存驅動設定
本文用於記錄ubuntu 17.10下docker 17.12.1-ce版本下overlay2的設定到aufs的方法。在Ubuntu 16.04以及更新的版本中，Linux核心引入了OverlayFS的支援，而且Docker CE也開始使用overlay2作為預設的儲存驅動，如果需要使用aufs，則需要進行手動配置。
什麼是AUFS 關於AUFS的簡單說明，可以參看如下文章： http://blog.csdn.net/liumiaocn/article/details/52619008?locationNum=8&fps=1
如何安裝ubtuntu下的stable版的docker 詳細可以參看：http://blog.csdn.net/liumiaocn/article/details/79428035
事前確認核心版本和作業系統版本：
[email protected]:/home/devops# uname -a
Linux ubuntu 4.13.0-21-generic #24-Ubuntu SMP Mon Dec 18 17:29:16 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
[email protected]:/home/devops#
[email protected]:/home/devops# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 17.10
Release: 17.10
Codename: artful
[email protected]:/home/devops# docker version Client: Version: 17.12.1-ce API version: 1.35 Go version: go1.9.4 Git commit: 7390fc6 Built: Tue Feb 27 22:17:53 2018 OS/Arch: linux/amd64
Server:
Engine:
Version: 17.12.1-ce
API version: 1.35 (minimum version 1.12)
Go version: go1.9.4
Git commit: 7390fc6
Built: Tue Feb 27 22:16:25 2018
OS/Arch: linux/amd64
Experimental: false
[email protected]:/home/devops# docker info Containers: 0 Running: 0 Paused: 0 Stopped: 0 Images: 0 Server Version: 17.12.1-ce Storage Driver: overlay2 Backing Filesystem: extfs Supports d_type: true Native Overlay Diff: true Logging Driver: json-file Cgroup Driver: cgroupfs Plugins: Volume: local Network: bridge host macvlan null overlay Log: awslogs fluentd gcplogs gelf journald json-file logentries splunk syslog Swarm: inactive Runtimes: runc Default Runtime: runc Init Binary: docker-init containerd version: 9b55aab90508bd389d7654c4baf173a981477d55 runc version: 9f9c96235cc97674e935002fc3d78361b696a69e init version: 949e6fa Security Options: apparmor seccomp Profile: default Kernel Version: 4.13.0-21-generic Operating System: Ubuntu 17.10 OSType: linux Architecture: x86_64 CPUs: 1 Total Memory: 988.7MiB Name: ubuntu ID: TYYA:4LWB:YTHA:2DNB:XBXM:NFNP:ADMY:VZEJ:2ZBN:KPKW:PTML:S5A2 Docker Root Dir: /var/lib/docker Debug Mode (client): false Debug Mode (server): false Registry: https://index.docker.io/v1/ Labels: Experimental: false Insecure Registries: 127.0.0.0/8 Live Restore Enabled: false
WARNING: No swap limit support [email protected]:/home/devops#
設定daemon.json 可以在docker的systemd的設定檔案中新增–storage-driver, 也可以直接設定damon.json，而在實際使用的時候更推薦使用damon.json的方式, 新增如下檔案，如果已經有設定檔案，則將storage-driver一行加入即可
[email protected]:/home/devops# docker info Containers: 0 Running: 0 Paused: 0 Stopped: 0 Images: 0 Server Version: 17.12.1-ce Storage Driver: aufs Root Dir: /var/lib/docker/aufs Backing Filesystem: extfs Dirs: 0 Dirperm1 Supported: true Logging Driver: json-file Cgroup Driver: cgroupfs Plugins: Volume: local Network: bridge host macvlan null overlay Log: awslogs fluentd gcplogs gelf journald json-file logentries splunk syslog Swarm: inactive Runtimes: runc Default Runtime: runc Init Binary: docker-init containerd version: 9b55aab90508bd389d7654c4baf173a981477d55 runc version: 9f9c96235cc97674e935002fc3d78361b696a69e init version: 949e6fa Security Options: apparmor seccomp Profile: default Kernel Version: 4.13.0-21-generic Operating System: Ubuntu 17.10 OSType: linux Architecture: x86_64 CPUs: 1 Total Memory: 988.7MiB Name: ubuntu ID: TYYA:4LWB:YTHA:2DNB:XBXM:NFNP:ADMY:VZEJ:2ZBN:KPKW:PTML:S5A2 Docker Root Dir: /var/lib/docker Debug Mode (client): false Debug Mode (server): false Registry: https://index.docker.io/v1/ Labels: Experimental: false Insecure Registries: 127.0.0.0/8 Live Restore Enabled: false
WARNING: No swap limit support [email protected]:/home/devops#