diff --git a/doc/file.README.html b/doc/file.README.html
index e764b9b..19eb6cd 100644
--- a/doc/file.README.html
+++ b/doc/file.README.html
@@ -68,7 +68,7 @@
 
 <p>Prometheus is an open-source monitoring system with a dimensional data model, flexible query language, efficient time series database and modern alerting approach.</p>
 
-<p><code>prometheus_cd</code> is a Puppet module to automate installation and configuration of prometheus and node exporter.</p>
+<p><code>prometheus_cd</code> is a Puppet module to automate installation and configuration of prometheus and node exporter. This module supports either managing prometheus or node_exporter or both. You need to set the parameters <code>$manage_prometheus</code>and / or <code>$manage_node_exporter</code>to true ( false by default)</p>
 
 <h2 id="label-WARNING">WARNING</h2>
 
diff --git a/doc/index.html b/doc/index.html
index 6bd83e7..8f24fbf 100644
--- a/doc/index.html
+++ b/doc/index.html
@@ -68,7 +68,7 @@
 
 <p>Prometheus is an open-source monitoring system with a dimensional data model, flexible query language, efficient time series database and modern alerting approach.</p>
 
-<p><code>prometheus_cd</code> is a Puppet module to automate installation and configuration of prometheus and node exporter.</p>
+<p><code>prometheus_cd</code> is a Puppet module to automate installation and configuration of prometheus and node exporter. This module supports either managing prometheus or node_exporter or both. You need to set the parameters <code>$manage_prometheus</code>and / or <code>$manage_node_exporter</code>to true ( false by default)</p>
 
 <h2 id="label-WARNING">WARNING</h2>
 
diff --git a/doc/puppet_classes/prometheus_cd_3A_3Amain_3A_3Ainstall.html b/doc/puppet_classes/prometheus_cd_3A_3Amain_3A_3Ainstall.html
index d56c200..eba0f59 100644
--- a/doc/puppet_classes/prometheus_cd_3A_3Amain_3A_3Ainstall.html
+++ b/doc/puppet_classes/prometheus_cd_3A_3Amain_3A_3Ainstall.html
@@ -104,7 +104,17 @@
 6
 7
 8
-9</pre>
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19</pre>
       </td>
       <td>
         <pre class="code"><span class="info file"># File 'manifests/main/install.pp', line 6</span>
@@ -112,6 +122,16 @@
 class prometheus_cd::main::install (
 ) inherits prometheus_cd::params {
   require prometheus_cd::main::yumrepo
+  if $manage_prometheus  == true {
+    package { $reqpackage_prom:
+      ensure =&gt; $pkg_ensure,
+    }
+  }
+  if $manage_node_exporter == true {
+    package { $reqpackage_ne:
+      ensure =&gt; $pkg_ensure,
+    }
+  }
 }</pre>
       </td>
     </tr>
diff --git a/doc/puppet_classes/prometheus_cd_3A_3Aparams.html b/doc/puppet_classes/prometheus_cd_3A_3Aparams.html
index 189dc73..3583b47 100644
--- a/doc/puppet_classes/prometheus_cd_3A_3Aparams.html
+++ b/doc/puppet_classes/prometheus_cd_3A_3Aparams.html
@@ -105,7 +105,101 @@
 
 
 <div class="tags">
+  <p class="tag_title">Parameters:</p>
+<ul class="param">
   
+    <li>
+      
+        <span class='name'>reqpackage_prom</span>
+      
+      
+        <span class='type'>(<tt>String</tt>)</span>
+      
+      
+        <em class="default">(defaults to: <tt>&#39;prometheus&#39;</tt>)</em>
+      
+      
+        &mdash;
+        <div class='inline'>
+<p>the prometheus package</p>
+</div>
+      
+    </li>
+  
+    <li>
+      
+        <span class='name'>reqpackage_ne</span>
+      
+      
+        <span class='type'>(<tt>String</tt>)</span>
+      
+      
+        <em class="default">(defaults to: <tt>&#39;node_exporter&#39;</tt>)</em>
+      
+      
+        &mdash;
+        <div class='inline'>
+<p>the node_exporter package</p>
+</div>
+      
+    </li>
+  
+    <li>
+      
+        <span class='name'>pkg_ensure</span>
+      
+      
+        <span class='type'>(<tt>String</tt>)</span>
+      
+      
+        <em class="default">(defaults to: <tt>&#39;present&#39;</tt>)</em>
+      
+      
+        &mdash;
+        <div class='inline'>
+<p>which version of the package to install</p>
+</div>
+      
+    </li>
+  
+    <li>
+      
+        <span class='name'>manage_prometheus</span>
+      
+      
+        <span class='type'>(<tt>Boolean</tt>)</span>
+      
+      
+        <em class="default">(defaults to: <tt>false</tt>)</em>
+      
+      
+        &mdash;
+        <div class='inline'>
+<p>whether to manage prometheus</p>
+</div>
+      
+    </li>
+  
+    <li>
+      
+        <span class='name'>manage_node_exporter</span>
+      
+      
+        <span class='type'>(<tt>Boolean</tt>)</span>
+      
+      
+        <em class="default">(defaults to: <tt>false</tt>)</em>
+      
+      
+        &mdash;
+        <div class='inline'>
+<p>whether to manage node exporter</p>
+</div>
+      
+    </li>
+  
+</ul>
+
 
 
 </div><div class="method_details_list">
@@ -115,17 +209,27 @@
         <pre class="lines">
 
 
-6
-7
-8
-9
-10
-11</pre>
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21</pre>
       </td>
       <td>
-        <pre class="code"><span class="info file"># File 'manifests/params.pp', line 6</span>
+        <pre class="code"><span class="info file"># File 'manifests/params.pp', line 11</span>
 
 class prometheus_cd::params (
+  String $reqpackage_prom       = &#39;prometheus&#39;,
+  String $reqpackage_ne         = &#39;node_exporter&#39;,
+  String $pkg_ensure            = &#39;present&#39;,
+  Boolean $manage_prometheus    = false,
+  Boolean $manage_node_exporter = false,
 
 ) {
   # includes must be last