关于docker:记docker容器内volume-mount实时更新

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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

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.

正文完