docker存储引擎----存储引擎的修改

最新推荐文章于 2024-06-16 07:07:23 发布

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最新推荐文章于 2024-06-16 07:07:23 发布 · 716 阅读

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本文介绍了如何在CentOS 7.2上更改Docker的存储引擎为overlay，并详细阐述了修改过程，包括查看存储引擎、配置镜像加速、修改daemon.json、处理报错、磁盘管理、备份和恢复数据的步骤。同时，文章提到，如果将存储引擎改回原来的状态，原有的镜像可以继续使用。

找一台centos7.2安装docker

# yum install -y vim wget telnet lrzsz tree yum-utils device-mapper-persistent lvm2 bash-comple*

# source /usr/share/bash-completion/bash_completion

# rm -rf /etc/yum.repos.d/*

# wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

# wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo

# wget -O /etc/yum.repos.d/docker-ce.repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

# yum makecache fast

# wget https://mirrors.aliyun.com/docker-ce/linux/centos/7/x86_64/stable/Packages/docker-ce-18.09.9-3.el7.x86_64.rpm

# yum localinstall docker-ce-*

# systemctl start docker

查看存储引擎

[root@localhost ~]# docker info

...

 Server Version: 18.09.9
 Storage Driver: devicemapper
  Pool Name: docker-8:3-33951780-pool
  Pool Blocksize: 65.54kB
  Base Device Size: 10.74GB
  Backing Filesystem: xfs
  Udev Sync Supported: true
  Data file: /dev/loop0
  Metadata file: /dev/loop1
  Data loop file: /var/lib/docker/devicemapper/devicemapper/data
  Metadata loop file: /var/lib/docker/devicemapper/devicemapper/metadata
  Data Space Used: 11.8MB
  Data Space Total: 107.4GB

...

WARNING: bridge-nf-call-iptables is disabled
WARNING: bridge-nf-call-ip6tables is disabled
WARNING: the devicemapper storage-driver is deprecated, and will be removed in a future release.
WARNING: devicemapper: usage of loopback devices is strongly discouraged for production use.
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