Docker无法在OS X本地OS X中将资产文件夹作为Web服务器进程写入资产文件夹

Question

appreciate if you could help me.

I'm running docker VM in a MAC OS X and seems okay until i reach a permissions error when my app is trying to write files in the assets folder in the server:

CAssetManager.basePath "/var/www/html/assets" is invalid. Please make sure the directory exists and is writable by the Web server process.

I ran ls -l in the docker container shell ($ docker exec container) and saw that my folder permissions are set to drwxrwxrwx 1000 staff assets . Following that, i tried to set it to www-data as i though it might work , so i ran usermod -u 1000 www-data . Now folder becomes: drwxrwxrwx www-data staff assets but the error persists.

In the shell, I also tried to run chmod and chown commands but i get these errors:

chown: changing ownership of 'assets': Read-only file system

chmod: changing ownership of 'assets': Read-only file system

How can i enable my directory to be writable by the web server process in docker?

UPDATE:

$ docker ps returns

$ docker info## Heading ## returns

UPDATE 2: $ docker inspect returns http://pastebin.com/wM3tT51v

Answer 1

Looking at the docker inspect output

        "Mounts": [
        {
            "Source": "/Users/joelkoh/Sites/merrymaker/php-app",
            "Destination": "/var/www/html",
            "Mode": "ro",
            "RW": false,
            "Propagation": "rprivate"
        }
    ],

It looks like your directory is read only, I'm not familiar with elastic beanstalk, but you will need to change that volume so it isn't read only.

Answer 2

You might consider using http://docker-sync.io for mounting shares. Since it is not mounting, but syncing, it solved the user permission-problems by mapping your desired uid/guid to the container https://github.com/EugenMayer/docker-sync/blob/master/example/docker-sync.yml#L47

This way you have a very performant share, but also, having a proper user mapping to never care about permission issues in the container ( for host-mounted folders )