关于docker:记docker容器内volume-mount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起因就是因为这个,官网文档有个表格,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,作用范畴当前目录,不包含子目录
`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,作用范畴当前目录,不包含子目录
`private`	任何挂载了此目录的容器都不会收到实时更新
`rshared`	同 shared, 作用范畴也包含子目录
`rslave`	同 slave, 作用范畴也包含子目录
`rprivate`	同 private, 作用范畴也包含子目录

二.解决办法

咱们本地开发的时候是想要文件可能同步实时更新的,所以须要设置为 rslave.

docker 启动时能够间接命令配置为 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

应用 docker-compose up 时能够批改配置文件 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 不应用简写,这些配置就能够, 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,然而是单向的,是从宿主机到容器,想改成什么能够依据本人需要.

对这次的docker 文件夹实时更新的配置做个记录,心愿能帮到大家.