Can't understand how to use an orb executor together with an orb job

I have this circleci config


and this published orb
https://circleci.com/orbs/registry/orb/arribada/docker

can’t figure out how to simplify the config such that I only need to specify the job and it will always use the same executor defined in that orb.

Here is the current failure
…circleci.com/gh/arribada/EnvToFile/21

Looking at the cookbooks it seems that this should work as expected
…circleci.com/docs/2.0/configuration-cookbook/

bump… anyone?

I received a reply on email that the executor formating should be like:

description: |
     Build and publish binaries and container images for a given release tag.
machine: 
     image: ubuntu-1604:201903-01

and this worked, thanks