记docker容器内volume|记docker容器内volume mount实时更新记docker容器内volumemount实时更新

记docker 容器内 volume mount 实时更新
一.查看容器配置

docker inspect [container id or name]

"Mounts": [ { "Type": "bind", "Source": "D:\\workspace\\dracohub", "Destination": "/app", "Mode": "", "RW": true, "Propagation": "rprivate" }, { "Type": "bind", "Source": "D:\\workspace\\dracohub\\deploy\\php.ini", "Destination": "/opt/bitnami/php/conf/php.ini", "Mode": "", "RW": false, "Propagation": "rprivate" } ],

Propagation 的值为 rprivate , 文件夹不实时同步的原因就是因为这个,官方文档有个表格,我贴在这里

Propagation setting	Description
`shared`	Sub-mounts of the original mount are exposed to replica mounts, and sub-mounts of replica mounts are also propagated to the original mount.
`slave`	similar to a shared mount, but only in one direction. If the original mount exposes a sub-mount, the replica mount can see it. However, if the replica mount exposes a sub-mount, the original mount cannot see it.
`private`	The mount is private. Sub-mounts within it are not exposed to replica mounts, and sub-mounts of replica mounts are not exposed to the original mount.
`rshared`	The same as shared, but the propagation also extends to and from mount points nested within any of the original or replica mount points.
`rslave`	The same as slave, but the propagation also extends to and from mount points nested within any of the original or replica mount points.
`rprivate`	The default. The same as private, meaning that no mount points anywhere within the original or replica mount points propagate in either direction.

我大体上翻译一下:

设置类型	Description
`shared`	任何挂载了此目录的容器都会双向和宿主机实时更新,作用范围当前目录,不包括子目录
`slave`	任何挂载了此目录的容器都会收到实时更新,更新是单向的; 宿主机到容器,作用范围当前目录,不包括子目录
`private`	任何挂载了此目录的容器都不会收到实时更新
`rshared`	同 shared, 作用范围也包括子目录
`rslave`	同 slave, 作用范围也包括子目录
`rprivate`	同 private, 作用范围也包括子目录

二.解决方法我们本地开发的时候是想要文件能够同步实时更新的,所以需要设置为 rslave.

docker 启动时可以直接命令配置为 rslave

docker run -d \ -it \ --name devtest \ --mount type=bind,source="$(pwd)"/target,target=/app \ --mount type=bind,source="$(pwd)"/target,target=/app2,readonly,bind-propagation=rslave \ nginx:latest

使用 docker-compose up 时可以修改配置文件 docker-compose.yml

volumes: - type: bind source: ./ target: /app read_only: false bind: propagation: rslave - type: bind source: ./deploy/php.ini target: /opt/bitnami/php/conf/php.ini read_only: true bind: propagation: rslave

volumes 不使用简写,这些配置就可以, 配置好了再看一下容器属性

"Mounts": [ { "Type": "bind", "Source": "D:\\workspace\\dracohub", "Destination": "/app", "Mode": "", "RW": true, "Propagation": "rslave" }, { "Type": "bind", "Source": "D:\\workspace\\dracohub\\deploy\\php.ini", "Destination": "/opt/bitnami/php/conf/php.ini", "Mode": "", "RW": false, "Propagation": "rslave" } ],

这样的话文件就是实时更新的,但是是单向的,是从宿主机到容器,想改成什么可以根据自己需求.
【记docker容器内volume|记docker容器内volume mount实时更新】对这次的docker 文件夹实时更新的配置做个记录,希望能帮到大家.