(CAT-2476) Test docker provisioned SLES

Author: LukasAud

Gemfile

@@ -67,8 +67,7 @@ group :development, :release_prep do
   gem "puppet-blacksmith", '~> 7.0',      require: false
 end
 group :system_tests do
-  gem "puppet_litmus", '~> 2.0',   require: false, platforms: [:ruby, :x64_mingw] if !ENV['PUPPET_FORGE_TOKEN'].to_s.empty?
-  gem "puppet_litmus", '~> 1.0',   require: false, platforms: [:ruby, :x64_mingw] if ENV['PUPPET_FORGE_TOKEN'].to_s.empty?
+  gem "puppet_litmus", git: 'https://github.com/puppetlabs/puppet_litmus.git', branch: 'CAT-2476-Address_SLES_failures', require: false, platforms: [:ruby, :x64_mingw]
   gem "CFPropertyList", '< 3.0.7', require: false, platforms: [:mswin, :mingw, :x64_mingw]
   gem "serverspec", '~> 2.41',     require: false
 end

provision.yaml

@@ -32,6 +32,10 @@ docker_el8:
   provisioner: docker
   images:
   - litmusimage/centos:8
+docker_sles:
+  provisioner: docker
+  images:
+  - litmusimage/sles:15
 release_checks_6:
   provisioner: abs
   images: