diff --git a/manifests/main/service.pp b/manifests/main/service.pp
index 1e60029..e3cc670 100644
--- a/manifests/main/service.pp
+++ b/manifests/main/service.pp
@@ -6,4 +6,20 @@
 class prometheus_cd::main::service (
 ) inherits prometheus_cd::params {
   require prometheus_cd::main::files
+  if $manage_prometheus == true {
+    service { 'prometheus':
+      ensure     => running,
+      hasstatus  => true,
+      hasrestart => true,
+      enable     => true,
+    }
+  }
+  if $manage_prometheus == true {
+    service { 'node_exporter':
+      ensure     => running,
+      hasstatus  => true,
+      hasrestart => true,
+      enable     => true,
+    }
+  }
 }
diff --git a/manifests/params.pp b/manifests/params.pp
index 97298b0..81fe31e 100644
--- a/manifests/params.pp
+++ b/manifests/params.pp
@@ -16,6 +16,12 @@ class prometheus_cd::params (
   Boolean $manage_node_exporter = false,
 
 ) {
+  # defaults
+  $fqdn                   = $facts['networking']['fqdn']
+  $domain                 = $facts['networking']['domain']
+  $os_name                = $facts['os']['name']
+  $os_release             = $facts['os']['release']['major']
+
   # includes must be last
   include prometheus_cd::main::config
 }