diff --git a/manifests/main/install.pp b/manifests/main/install.pp
index 82118f1..6a98a6c 100644
--- a/manifests/main/install.pp
+++ b/manifests/main/install.pp
@@ -5,8 +5,22 @@
 ###############################################################################
 class puppet_cd::main::install (
 
-) inherits puppet_cd::params  {
-
+) inherits puppet_cd::params {
   require puppet_cd::main::yumrepo
 
+  package { $pt_agent_pkg:
+    ensure => $pt_pkg_ensure,
+  }
+
+  if $fqdn == $pt_pm_fqdn {
+    package { $pt_server_pkg:
+      ensure => $pt_pkg_ensure,
+    }
+  }
+
+  if $fqdn == $pt_db_fqdn {
+    package { $pt_db_pkg:
+      ensure  => $pt_pkg_ensure,
+    }
+  }
 }
diff --git a/manifests/params.pp b/manifests/params.pp
index 6543b8b..279bbf3 100644
--- a/manifests/params.pp
+++ b/manifests/params.pp
@@ -2,26 +2,36 @@
 # Module name: puppet_cd
 # Author: Arne Teuke (arne_teuke@confdroid)
 # @summary  Class manages parameters for the puppet_cd module.
+# @param [boolean] pt_manage_fw whether to manage firewall settings
+# @param [string] pt_pm_fqdn the fqdn for the puppetmaster and master
+# settings are applied. any other fqdn # will be considered a puppet agent.
+# @param [string] pt_db_fqdn  the fqdn for the puppetdb host. 
+# @param [string] pt_package_url the url for fetching the repo rpm
+# @param [string] pt_pkg_ensure valid: "present", "latest", "v1.2.3"
+# @param [string] pt_agent_pkg the packages for agents to install
+# @param [string] pt_server_pkg the server packages to install
+# @param [array] pt_db_pkg the packages for puppetdb
 ###############################################################################
 class puppet_cd::params (
 
-  $pt_manage_fw     = true,
-  $pt_puppetmaster  = undef,
+  Boolean $pt_manage_fw     = true,
+  String $pt_pm_fqdn        = undef,
+  String $pt_db_fqdn        = undef,
 
   # installation
-  $pt_package_url   =  'https://yum.puppet.com/puppet8-release-el-9.noarch.rpm',
-  $pt_pkg_ensure    = 'present',
-
+  String $pt_package_url    = 'https://yum.puppet.com/puppet8-release-el-9.noarch.rpm',
+  String $pt_pkg_ensure     = 'present',
+  String $pt_agent_pkg      = 'puppet-agent',
+  String $pt_server_pkg     = 'puppetserver',
+  Array $pt_db_pkg          = ['puppetdb','puppetdb-termini'],
 
 ) {
-
-$fqdn               = $facts['networking']['fqdn']
+  $fqdn                     = $facts['networking']['fqdn']
 
 # service
-$pt_service         = 'puppetserver'
+  $pt_service               = 'puppetserver'
 
 #
   # includes must be last
   include puppet_cd::main::config
-
 }
diff --git a/manifests/server/service.pp b/manifests/server/service.pp
index a503eca..e8b5a8f 100644
--- a/manifests/server/service.pp
+++ b/manifests/server/service.pp
@@ -7,7 +7,7 @@ class puppet_cd::server::service (
 
 ) inherits puppet_cd::params  {
 
-  if $fqdn == $pt_puppetmaster {
+  if $fqdn == $pt_pm_fqdn {
 
     require puppet_cd::firewall::iptables
     require puppet_cd::main::files