Selecting registry

[edupo]

We use a private docker mirror.
I think this is a common practice around so why not to include a base flag --docker-registry to define the registry where to pull images from?

e.g:
I define a new task like:

task := command.NewTask("alpine")

And adding this lines to my app config file in my home:

docker-registry: "my.private.registry"

Will make cali to pull my.private.registry/alpine that is just a mirror from the original.

This comes from moby/moby#33069

[lucymhdavies]

I know you can set your docker registry in your docker daemon config, but being able to tell Cali to do this too would be useful.

A global docker-registry flag would be a good idea (default to docker.io, but allowing you to configure the default value for this in your own app code)