更改docker默认数据目录的方法步骤
作者：还有十四天
本文主要介绍了更改docker默认数据目录的方法步骤,文中通过示例代码介绍的非常详细,对大家的学习或者工作具有一定的参考学习价值,需要的朋友们下面随着小编来一起学习学习吧
1.查看docker是否存在并停止该服务
[root@hxy ~]# docker version Client: Docker Engine - Community Version: 27.2.1 API version: 1.47 Go version: go1.22.7 Git commit: 9e34c9b Built: Fri Sep 6 12:09:42 2024 OS/Arch: linux/amd64 Context: default Server: Docker Engine - Community Engine: Version: 27.2.1 API version: 1.47 (minimum version 1.24) Go version: go1.22.7 Git commit: 8b539b8 Built: Fri Sep 6 12:07:57 2024 OS/Arch: linux/amd64 Experimental: false containerd: Version: 1.7.21 GitCommit: 472731909fa34bd7bc9c087e4c27943f9835f111 runc: Version: 1.1.13 GitCommit: v1.1.13-0-g58aa920 docker-init: Version: 0.19.0 GitCommit: de40ad0 [root@hxy ~]# systemctl stop docker Warning: Stopping docker.service, but it can still be activated by: docker.socket
2.挂载镜像并安装rsync便于备份
[root@hxy ~]# mount /dev/sr0 /mnt mount: /mnt: WARNING: source write-protected, mounted read-only. [root@hxy ~]# yum -y install rsync 正在更新 Subscription Management 软件仓库。 无法读取客户身份 本系统尚未在权利服务器中注册。可使用 subscription-manager 进行注册。 上次元数据过期检查：0:04:09 前，执行于 2024年11月18日 星期一 14时38分34秒。 软件包 rsync-3.2.3-19.el9.x86_64 已安装。 依赖关系解决。 无需任何处理。 完毕！ [root@hxy ~]#
3.取消挂载备份和迁移现有数据
[root@hxy ~]# umount /mnt（取消挂载）
[root@hxy ~]# mkdir -p /mnt/docker-data（创建新数据目录）
[root@hxy ~]# rsync -aP /var/lib/docker/ /mnt/docker-data/（备份数据）
sending incremental file list
./
buildkit/cache.db
32,768 100% 0.00kB/s 0:00:00 (xfr#1, ir-chk=1103/1116)
containers/0847c6969330b0e88bc78c4120221954dd6f321c334be357be83c23b673ec29c/
containers/0847c6969330b0e88bc78c4120221954dd6f321c334be357be83c23b673ec29c/config.v2.json
2,401 100% 2.29MB/s 0:00:00 (xfr#2, ir-chk=1081/1116)
containers/0847c6969330b0e88bc78c4120221954dd6f321c334be357be83c23b673ec29c/hostconfig.json
1,461 100% 713.38kB/s 0:00:00 (xfr#3, ir-chk=1080/1116)
containers/0899aa482296158404fe7e475b8ca64f571ef05fccaedb5279ce34cb2a1aa598/
containers/0899aa482296158404fe7e475b8ca64f571ef05fccaedb5279ce34cb2a1aa598/config.v2.json
2,393 100% 1.14MB/s 0:00:00 (xfr#4, ir-chk=1072/1116)
containers/0899aa482296158404fe7e475b8ca64f571ef05fccaedb5279ce34cb2a1aa598/hostconfig.json
1,461 100% 475.59kB/s 0:00:00 (xfr#5, ir-chk=1071/1116)
containers/217d978e1a191d798efdad2058b28a1cd21f938e0335c04038472b285c42e3ab/
containers/217d978e1a191d798efdad2058b28a1cd21f938e0335c04038472b285c42e3ab/config.v2.json
2,396 100% 584.96kB/s 0:00:00 (xfr#6, ir-chk=1063/1116)
containers/217d978e1a191d798efdad2058b28a1cd21f938e0335c04038472b285c42e3ab/hostconfig.json
1,461 100% 285.35kB/s 0:00:00 (xfr#7, ir-chk=1062/1116)
overlay2/
runtimes/
tmp/
volumes/
volumes/metadata.db
32,768 100% 0.00kB/s 0:00:00 (xfr#29, to-chk=0/26382)
4.修改docker配置文件
[root@hxy ~]# vi /etc/docker/daemon.json（删除原加速器内容）
[root@hxy ~]# cat /etc/docker/daemon.json（查看输入内容）
{
"data-root": "/mnt/docker-data"
}5.验证新数据目录使用情况
[root@hxy ~]# systemctl start docker（开启docker）
[root@hxy ~]# systemctl status docker（查看当前状态）
● docker.service - Docker Application Container Engine
Loaded: loaded (/usr/lib/systemd/system/docker.service; enabled; prese>
Active: active (running) since Mon 2024-11-18 14:49:31 CST; 20s ago
TriggeredBy: ● docker.socket
Docs: https://docs.docker.com
Main PID: 61352 (dockerd)
Tasks: 17
Memory: 53.2M
CPU: 1.016s
CGroup: /system.slice/docker.service
└─61352 /usr/bin/dockerd -H fd:// --containerd=/run/containerd>
11月 18 14:49:30 hxy dockerd[61352]: time="2024-11-18T14:49:30.772302169+08>
11月 18 14:49:31 hxy dockerd[61352]: time="2024-11-18T14:49:31.391786710+08>
11月 18 14:49:31 hxy dockerd[61352]: time="2024-11-18T14:49:31.565001457+08>
11月 18 14:49:31 hxy dockerd[61352]: time="2024-11-18T14:49:31.565120362+08>
11月 18 14:49:31 hxy dockerd[61352]: time="2024-11-18T14:49:31.565160031+08>
11月 18 14:49:31 hxy dockerd[61352]: time="2024-11-18T14:49:31.565929847+08>
11月 18 14:49:31 hxy dockerd[61352]: time="2024-11-18T14:49:31.604773790+08>
11月 18 14:49:31 hxy dockerd[61352]: time="2024-11-18T14:49:31.604909987+08>
11月 18 14:49:31 hxy dockerd[61352]: time="2024-11-18T14:49:31.693026651+08>
11月 18 14:49:31 hxy systemd[1]: Started Docker Application Container Engin>
lines 1-22/22 (END)
[root@hxy ~]#
6.查看效果即可
[root@hxy ~]# docker info
Client: Docker Engine - Community
Version: 27.2.1
Context: default
Debug Mode: false
Plugins:
buildx: Docker Buildx (Docker Inc.)
Version: v0.16.2
Path: /usr/libexec/docker/cli-plugins/docker-buildx
compose: Docker Compose (Docker Inc.)
Version: v2.29.2
Path: /usr/libexec/docker/cli-plugins/docker-compose
Server:
Containers: 13
Running: 0
Paused: 0
Stopped: 13
Images: 2
Server Version: 27.2.1
Storage Driver: overlay2
Backing Filesystem: xfs
Supports d_type: true
Using metacopy: false
Native Overlay Diff: true
userxattr: false
Logging Driver: json-file
Cgroup Driver: systemd
Cgroup Version: 2
Plugins:
Volume: local
Network: bridge host ipvlan macvlan null overlay
Log: awslogs fluentd gcplogs gelf journald json-file local splunk syslog
Swarm: inactive
Runtimes: io.containerd.runc.v2 runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 472731909fa34bd7bc9c087e4c27943f9835f111
runc version: v1.1.13-0-g58aa920
init version: de40ad0
Security Options:
seccomp
Profile: builtin
cgroupns
Kernel Version: 5.14.0-362.8.1.el9_3.x86_64
Operating System: Red Hat Enterprise Linux 9.3 (Plow)
OSType: linux
Architecture: x86_64
CPUs: 4
Total Memory: 1.879GiB
Name: hxy
ID: 5bfc3e44-6003-449e-bb96-93c320d6f2f2
Docker Root Dir: /mnt/docker-data（默认目录更改成功）
Debug Mode: false
Experimental: false
Insecure Registries:
127.0.0.0/8
Live Restore Enabled: false到此这篇关于更改docker默认数据目录的方法步骤的文章就介绍到这了,更多相关更改docker默认数据目录内容请搜索脚本之家以前的文章或继续浏览下面的相关文章希望大家以后多多支持脚本之家！