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dockervolumes

Mounting host directory to container

I am launching a container for my application. But my app needs few config files to login. Files are stored in host directory. How can I mount the host filepath to container?

host directory : /opt/myApp/config

Docker command used currently :

sudo docker run container -d --name myApp-container -p 8090:8080 myApp-image

Please suggest the changes in docker command to achieve this.

Solution

  • You need to use -v/--volume key in such way:

    -v <host dir>:<container dir>:ro

    In your case it will be:

    -v /opt/myApp/config:/opt/myApp/config:ro

    You can use this key multiple times. You can also drop :ro part if you want directory to be writable.

    See Docker documentation on volumes.