Most appropriate container for a data only container?

Question

What is the most appropriate (smallest, simplest) container to use for a data only Docker container?

In the documentation they use the training/postgres container. Howe

Answer 1

Update: Now that we have named volumes, you generally don't want to use data containers at all.

Use the same image for the data container - in this case the Postgres image. You don't leave data containers running, so it won't consume resources.

Using the same image is important for several reasons:

• It will take up less space as you already have the image cached.
• The image gets a chance to seed the volume with data e.g. default files.
• The permissions and owner will be correct.

For more information see Data Only Container Madness.