Fix RedHat urls

[GMZwinge]

Pull Request (PR) description

Under https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/, the urls have moved from CentOS_9 to CentOS_9_Stream. Eg: https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable/CentOS_9_Stream/ and https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable:/cri-o:/1.26:/1.26.1/CentOS_9_Stream/.

This Pull Request (PR) fixes the following issues

When applying to a CentOS 9 machine.

[ananace]

This would break EL7 support, which still has a while left until it's EoL.

My suggestion is to only add _Stream if the major is larger than 7.

[bastelfreak]

@GMZwinge can you please add a unit test?

[tuxmea]

pleaae add this to a unit test

[GMZwinge]

@GMZwinge can you please add a unit test?

@bastelfreak Not sure what you mean. It looks like there is already a unit test.

[tuxmea]

You want to add spec test to check that the correct repo is taken:

Example (not rubocop clean):

  on_supported_os.each do |os, os_facts|
    context "on #{os}" do
      let(:facts) { os_facts }

      it { is_expected.to compile }
    end
    context "on CentOS 7 and 8" do
      let(:facts) { os_facts }
      if os['name'] == 'CentOS' and os['release']['major'] == '7'
        it { is_expected.to contain_yumrepo('libcontainers:stable').with_baseurl => 'https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable/CentOS_7}/
      end
      if os['name'] == 'CentOS' and os['release']['major'] == '8'
        it { is_expected.to contain_yumrepo('libcontainers:stable').with_baseurl => 'https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable/CentOS_Stream_8}/
      end
    end
  end

I suppose that there are more elegant ways on how to test behavior.

[GMZwinge]

@tuxmea @bastelfreak: unit test added.