Docker修改已创建容器的挂载目录

问题描述

一般来说，都是创建容器时进行目录挂载，对于已经创建好的容器如果忘了挂载目录但是又想挂载目录

解决办法

提交这个容器为新的镜像，然后创建这个新镜像的容器同时进行目录挂载（此方式较简单）
修改这个容器的配置文件

实现过程

提交新镜像再创建容器

查看下面两篇博客即可实现修改已创建容器的挂载目录

Docker提交运行时容器为镜像，将要挂载目录的已创建容器提交为本地新镜像
Docker创建容器时目录挂载，创建容器时使用新镜像的镜像id顺便挂载目录

修改配置文件

停止Docker

1	systemctl stop docker

配置文件路径

/var/lib/docker/containers/[容器id]

修改配置文件hostconfig.json，在”Binds”节点中增加挂载目录的关系，前面的/home/hData/是宿主机目录，后面的/cData是容器目录，如果是多个用英文逗号隔开

单个目录例子：

1	"Binds":["/home/hData/:/cData"]

多个目录例子：

1	"Binds":["/home/hData:/cData","/home/hData2:/cData2"]

修改配置文件config.v2.json，在”MountPoints” 节点中增加挂载目录

单个目录例子：（第一段代码是原始的，第二段代码是格式化过的，格式化后更好修改）

"MountPoints":{"/cData":{"Source":"/home/hData","Destination":"/cData","RW":true,"Name":"","Driver":"","Type":"bind","Propagation":"rprivate","Spec":{"Type":"bind","Source":"/home/hData/","Target":"/cData"},"SkipMountpointCreation":false}}

"MountPoints": {
	"/cData": {
		"Source": "/home/hData",
		"Destination": "/cData",
		"RW": true,
		"Name": "",
		"Driver": "",
		"Type": "bind",
		"Propagation": "rprivate",
		"Spec": {
			"Type": "bind",
			"Source": "/home/hData/",
			"Target": "/cData"
		},
		"SkipMountpointCreation": false
	}
}

多个目录例子：（第一段代码是原始的，第二段代码是格式化过的，格式化后更好修改）

"MountPoints":{"/cData":{"Source":"/home/hData","Destination":"/cData","RW":true,"Name":"","Driver":"","Type":"bind","Propagation":"rprivate","Spec":{"Type":"bind","Source":"/home/hData","Target":"/cData"},"SkipMountpointCreation":false},"/cData2":{"Source":"/home/hData2","Destination":"/cData2","RW":true,"Name":"","Driver":"","Type":"bind","Propagation":"rprivate","Spec":{"Type":"bind","Source":"/home/hData2","Target":"/cData2"},"SkipMountpointCreation":false}}

"MountPoints": {
	"/cData": {
		"Source": "/home/hData",
		"Destination": "/cData",
		"RW": true,
		"Name": "",
		"Driver": "",
		"Type": "bind",
		"Propagation": "rprivate",
		"Spec": {
			"Type": "bind",
			"Source": "/home/hData",
			"Target": "/cData"
		},
		"SkipMountpointCreation": false
	},
	"/cData2": {
		"Source": "/home/hData2",
		"Destination": "/cData2",
		"RW": true,
		"Name": "",
		"Driver": "",
		"Type": "bind",
		"Propagation": "rprivate",
		"Spec": {
			"Type": "bind",
			"Source": "/home/hData2",
			"Target": "/cData2"
		},
		"SkipMountpointCreation": false
	}
}