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/manifests/config.pp

@@ -0,0 +1,87 @@
+# config rke2
+class rke2::config (
+  Enum['server', 'agent'] $node_type = $rke2::node_type,
+  Stdlib::Absolutepath    $config_file = $rke2::config_file,
+  Hash                    $config_hash = $rke2::config_hash,
+  Stdlib::HTTPSUrl        $join_url = $rke2::join_url,
+  Stdlib::Fqdn            $bootstrap_node = $rke2::bootstrap_node,
+  String                  $node_token = $rke2::node_token,
+  Array[String[1]]        $extra_config_files = $rke2::extra_config_files,
+){
+
+  # if agent, add token. what other fields should i add?
+  # how can I add a tls secret using kubectl to add ephemeral certs.
+
+  # if its not the bootstrap node, add join path to config
+  if $node_type == 'server' {
+    if $trusted['certname'] != $bootstrap_node {
+      $config = merge($config_hash, {
+        server => $join_url,
+        token  => $node_token,
+      } )
+    }else{
+      $config = $config_hash
+    }
+  } elsif $node_type == 'agent' {
+      $config = merge($config_hash, {
+        server => $join_url,
+        token  => $node_token,
+      } )
+  }else{
+    $config = $config_hash
+  }
+
+  # create the config file
+  file { $config_file:
+    ensure  => file,
+    content => Sensitive($config.to_yaml),
+    owner   => 'root',
+    group   => 'root',
+    mode    => '0644',
+    require => Package["rke2-${node_type}"],
+    before  => Service["rke2-${node_type}"],
+  }
+
+  # create a script to verify k8s api is up (used by consul)
+  file {'/usr/local/bin/check_k8s_api.sh':
+    ensure => file,
+    owner  => 'root',
+    group  => 'root',
+    mode   => '0755',
+    source => 'puppet:///modules/rke2/check_k8s_api.sh',
+  }
+
+  # symlink kubectl to path
+  file {'/usr/bin/kubectl':
+    ensure  => link,
+    target  => '/var/lib/rancher/rke2/bin/kubectl',
+    require => Package["rke2-${node_type}"],
+  }
+
+  # when ProtectKernelDefaults=true
+  sysctl { 'vm.overcommit_memory':
+    value  => '1',
+    before => Service["rke2-${node_type}"],
+  }
+  sysctl { 'kernel.panic':
+    value  => '10',
+    before => Service["rke2-${node_type}"],
+  }
+
+  # on the controller nodes only
+  if $node_type == 'server' {
+
+    # manage extra config config
+    $extra_config_files.each |$file| {
+
+      file {"/var/lib/rancher/rke2/server/manifests/${file}.yaml":
+        ensure  => file,
+        owner   => 'root',
+        group   => 'root',
+        mode    => '0644',
+        source  => "puppet:///modules/rke2/${file}.yaml",
+        require => Service['rke2-server'],
+      }
+    }
+  }
+}