Support for docker-latest package RHEL7

[ram-devsecops]

Right now Redhat is providing docker and docker-latest packages, it would be great If we can handle this through this module.
https://access.redhat.com/articles/2317361

[LongLiveCHIEF]

actually, using the provided parameters for repository configuration and package_name, you can already do this. :-)

class {'::docker':
	manage_package		             => true,
	package_name                            => 'docker-latest',
        service_name                              => 'docker-latest',
	use_upstream_package_source => false,
        require                                          => Yumrepo[$rhel_repo_with_docker_latest]
  }

Just make sure you have a repository with docker-latest package also available (note the require). You can use the builtin yumrepo resource for this. Usually, various orgs have different urls for where that redhat repo is available from.

[ram-devsecops]

Yeah, it installs the package but it doesn't use same config files as docker package. To make other setting work we need to add docker-latest config files, as well as it uses different systemd directory
/etc/systemd/system/docker-latest.service.d.

[LongLiveCHIEF]

yeah, it sets all that too though.

[gdlx]

The docker run template refers statically to docker.service:

https://github.com/garethr/garethr-docker/blob/master/templates/etc/systemd/system/docker-run.erb#L2
https://github.com/garethr/garethr-docker/blob/master/templates/etc/systemd/system/docker-run.erb#L7

[gdlx]

Service overriding is also static:

https://github.com/garethr/garethr-docker/blob/master/manifests/service.pp#L150
https://github.com/garethr/garethr-docker/blob/master/manifests/service.pp#L155
https://github.com/garethr/garethr-docker/blob/master/templates/etc/systemd/system/docker.service.d/service-overrides-rhel.conf.erb#L2

[benningm]

Thats related to my pull request #681