Add systemd units to manage updater

manifests/init.pp

@@ -60,6 +60,12 @@
 # [*nodejs_version*]
 #   String with nodejs version to install. Default 16.x
 #
+# [*manage_updater_task*]
+#   Boolean indicating if this class should manage a scheduled task (Systemd Timer unit) to update Mastodon automatically. Requires a github token with read access to public repos.
+#
+# [*github_token*]
+#   String with the Github token with read access to public repos.
+#
 class mastodon (
   String $ensure = 'present',
   String $hostname = 'mastodon.example.org',
@@ -102,6 +108,8 @@ class mastodon (
   },
   Array $users = [],
   String $cert_admin_mail = 'cert-admin@example.org',
+  Boolean $manage_updater_task = false,
+  String $github_token = '',
 ) {
   case $ensure {
     default: {
@@ -547,4 +555,38 @@ class mastodon (
     active          => true,
     enable          => true,
   }
+
+  $_timer_updater = @("EOT")
+    [Unit]
+    Description=Mastodon - Updater
+
+    [Timer]
+    OnBootSec=24min
+    OnUnitActiveSec=1d
+    Unit=mastodon_updater.service
+
+    [Install]
+    WantedBy=timers.target
+    | EOT
+  if ($manage_updater_task and $github_token != '') {
+    $_service_updater = @("EOT")
+      [Service]
+      Type=simple
+      User=${mastodon_user}
+      WorkingDirectory=${mastodon_home}/live
+      ExecStart=/usr/local/bin/update_mastodon.sh --debug --token "${github_token}"
+
+      [Unit]
+      OnFailure=status_email_antoniodelgado@%n.service
+      | EOT
+
+    systemd::timer { 'mastodon_updater.timer':
+      ensure          => present,
+      timer_content   => $_timer_updater,
+      service_unit    => 'mastodon_updater.service',
+      service_content => $_service_updater,
+      active          => true,
+      enable          => true,
+    }
+  }
 }