feat: add incus module (#230)

- add a basic incus module

Reviewed-on: https://git.query.consul/unkinben/puppet-prod/pulls/230

modules/incus/manifests/cluster.pp

@@ -0,0 +1,57 @@
+# manage incus clusters
+class incus::cluster (
+  Boolean $members_lookup   = false,
+  String  $members_role     = undef,
+  String  $master           = undef,
+  Array   $servers          = [],
+  Stdlib::Fqdn $server_fqdn = $facts['networking']['fqdn'],
+  Stdlib::Port $server_port = 8443,
+){
+
+  # check that the master is named
+  unless !($master == undef) {
+    fail("master must be provided for ${title}")
+  }
+
+  # if lookup is enabled
+  if $members_lookup {
+
+    # check that the role is also set
+    unless !($members_role == undef) {
+      fail("members_role must be provided for ${title} when members_lookup is True")
+    }
+
+    # if it is, find hosts, sort them so they dont cause changes every run
+    $servers_array = sort(query_nodes("enc_role='${members_role}' and region='${facts['region']}'", 'networking.fqdn'))
+
+  # else use provided array from params
+  }else{
+    $servers_array = $servers
+  }
+
+  # if its not an empty array. Give puppetdb a chance to be populated with data.
+  if length($servers_array) >= 3 {
+
+    # check if this is the master_node
+    if $master == $trusted['certname'] {
+      $master_bool = true
+    }else{
+      $master_bool = false
+    }
+
+    # find bootstrap status for servers
+    $bootstrap_array = puppetdb_query("inventory[certname, facts] { facts.enc_role = '${members_role}' }").map |$node| {
+      {
+        'fqdn'        => $node['certname'],
+        'ip'          => $node['facts']['networking']['ip'],
+        'clustered'   => $node['facts']['incus']['environment']['server_clustered'],
+        'certificate' => $node['facts']['incus']['environment']['certificate'],
+      }
+    }
+
+    # determine if the cluster is bootstrapped
+    $cluster_bootstrapped = $bootstrap_array.any |$server| {
+      $server['fqdn'] == $master and $server['clustered'] == true
+    }
+  }
+}