feat: adding rke2 (#394)

- manage rke2 repos
- add rke2 module (init, params, install, config, service)
- split roles::infra::k8s::node -> control/compute roles
- moved common k8s config into k8s.yaml
- add bootstrap_node, manage server and token fields in rke2 config
- manage install of helm
- manage node attributes (from puppet facts)
- manage frr exclusions for service/cluster network

Reviewed-on: #394

modules/rke2/lib/facter/helm_repos.rb

@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+require 'facter/util/helm'
+
+Facter.add(:helm_repos) do
+  confine kernel: 'Linux'
+  confine enc_role: [
+    'roles::infra::k8s::control',
+    'roles::infra::k8s::compute'
+  ]
+
+  setcode do
+    Facter::Util::Helm.get_helm_repos('/usr/bin/helm')
+  end
+end

modules/rke2/lib/facter/util/helm.rb

@@ -0,0 +1,31 @@
+# frozen_string_literal: true
+
+require 'facter'
+require 'json'
+
+# a simple helm module
+module Facter::Util::Helm
+  def self.get_helm_repos(helm_cmd)
+    return [] unless File.executable?(helm_cmd)
+
+    output = Facter::Core::Execution.execute(
+      "#{helm_cmd} repo list --output json --repository-config /etc/helm/repositories.yaml",
+      on_fail: nil
+    )
+    return [] if output.to_s.strip.empty?
+
+    parse_helm_output(output)
+  rescue StandardError => e
+    Facter.debug("helm_repos fact error: #{e}")
+    []
+  end
+
+  def self.parse_helm_output(output)
+    JSON.parse(output).map do |repo|
+      {
+        'name' => repo['name'],
+        'url' => repo['url']
+      }
+    end
+  end
+end