cpe_kernel_channel - Migrate away from deprecated mirrorlist.centos.o…

…rg URL (#282)

Summary:
This originally was PR #282, but the original pull request had issues that failed in internal testing. Credit to liteburn for the original PR.

Resolves #281.

Differential Revision: D59592724

fbshipit-source-id: d7c7ac989fed429e40725872edd78e3546ed1528

itchef/cookbooks/cpe_kernel_channel/resources/fedora.rb

@@ -34,17 +34,17 @@
 
   cookbook_file '/etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial' do
     source 'centos_kernel/RPM-GPG-KEY-centosofficial'
-    owner 'root'
-    group 'root'
+    owner node.root_user
+    group node.root_group
     mode '0644'
   end
 
   release = node['cpe_kernel_channel']['release']
 
   yum_repository 'CentOS-BaseOS' do
     description "CentOS-#{release} - Base"
-    mirrorlist 'http://mirrorlist.centos.org/' +
-      "?release=#{release}&arch=$basearch&repo=BaseOS"
+    baseurl 'http://vault.centos.org/' +
+      "#{release}/BaseOS/$basearch/os"
     fastestmirror_enabled true
     gpgkey 'file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial'
     includepkgs 'kernel*,kexec-tools'