Docker for Rails Developers

Using the Docker CLI

The other way to find images is by using the Docker CLI. For example, to find Postgres-related images, you would use the following command:

$ docker search postgres

If you run this now, you’ll see output similar to the following:

NAME                     DESCRIPTION                  STARS  OFFICIAL  AUTOMATED
postgres                 The PostgreSQL object-r...   3828   [OK]
kiasaki/alpine-postgres  PostgreSQL docker image...   33               [OK]
nornagon/postgres                                     10               [OK]
macadmins/postgres       Postgres that accepts r...   8                [OK]
...

As you can see, the official postgres image is shown first, along with several others. Images are shown in order of the number of times the image has been “starred,” which is an indication of how popular the image is. The output also has a column to tell ...