Allow install docker also on RHEL OS

[petr-balogh]

This alow install docker-ce also on RHEL OS.
Tested on RHEL 7.5

[petr-balogh]

Hi and thx, are you going to make new release to have this change available in galaxy?

[paulfantom]

Not today, but soon.

[petr-balogh]

Thx

…

On Tue, Jun 19, 2018, 22:37 Paweł Krupa ***@***.***> wrote: Not today, but soon. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#53 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/APa6kUU0YagkXWh-ISB1FhJR_IQUf451ks5t-WEQgaJpZM4UttTC> .

[mongrelion]

Thanks for the PR, @petr-balogh and to @paulfantom for reviewing.
A couple of things that I see missing here that I would have liked to see before merging a pull request like this (but bear with me if I'm missing something, please):

1. I don't see the tests for this but maybe since we already support CentOS, it's already covered for RedHat as well?
2. I also don't see an update on the meta to let everyone know that we now support RedHat. Is that also covered by EL/7?

Thanks for the effort, everyone.

[paulfantom]

1. CentOS tests cover also RHEL.
2. There is no specific meta for RHEL it is covered by EL/7

[mongrelion]

Thanks for clarifying.

[paulfantom]

No problem 😄

Sorry for the confusion

[paulfantom]

Fun fact, docker basically doesn't have any official builds of docker-ce for RHEL (https://docs.docker.com/install/#server) and they want everybody to use docker-ee on that OS (installation insctruction for RHEL)

Also https://blog.docker.com/2017/03/docker-enterprise-edition