CODEWITHSUNDEEP
amazon-web-servicesdocker
Johanan Liebermann
Johanan Liebermann

Reputation: 821

Making a directory inside a Docker container accessible from another container

I have a Docker container named "data-container" which has a directory named /var/data. This directory is in fact an ObjectiveFS volume which is stored in AWS S3. In addition, I have a second container named "app-container" which needs access to the /var/data directory in "data-container".

Is there a pure-Docker way of allowing "app-container" to read/write data to the directory in "data-container"? I could probably do that using NFS but I'm not sure that's the right way to go.

Upvotes: 0

Views: 102

Answers (1)

Rene M.
Rene M.

Reputation: 2690

It's simple!

First create a data volume container

docker create -v /data --name mystore ubuntu /bin/true

Then you can bind this "/data" mount to other container over the "--volumes-from" parameter like so:

docker run -d --volumes-from mystore --name db1 postgres

You find this description here in the Docker docs:

https://docs.docker.com/engine/userguide/containers/dockervolumes/

Chapter: Creating and mounting a data volume container

Upvotes: 3

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