diff --git a/doc/file.README.html b/doc/file.README.html
index 19eb6cd..b3a1a3f 100644
--- a/doc/file.README.html
+++ b/doc/file.README.html
@@ -87,8 +87,6 @@
 <ul><li>
 <p>manage directories and files including templates</p>
 </li><li>
-<p>manages the main alloy jenkins for loki and prometheus</p>
-</li><li>
 <p>manage service</p>
 </li></ul>
 
diff --git a/doc/index.html b/doc/index.html
index 8f24fbf..ea25804 100644
--- a/doc/index.html
+++ b/doc/index.html
@@ -87,8 +87,6 @@
 <ul><li>
 <p>manage directories and files including templates</p>
 </li><li>
-<p>manages the main alloy jenkins for loki and prometheus</p>
-</li><li>
 <p>manage service</p>
 </li></ul>
 
diff --git a/doc/puppet_classes/prometheus_cd_3A_3Amain_3A_3Adirs.html b/doc/puppet_classes/prometheus_cd_3A_3Amain_3A_3Adirs.html
index 540bff1..789e8a6 100644
--- a/doc/puppet_classes/prometheus_cd_3A_3Amain_3A_3Adirs.html
+++ b/doc/puppet_classes/prometheus_cd_3A_3Amain_3A_3Adirs.html
@@ -117,7 +117,18 @@
 19
 20
 21
-22</pre>
+22
+23
+24
+25
+26
+27
+28
+29
+30
+31
+32
+33</pre>
       </td>
       <td>
         <pre class="code"><span class="info file"># File 'manifests/main/dirs.pp', line 6</span>
@@ -126,7 +137,7 @@ class prometheus_cd::main::dirs (
 ) inherits prometheus_cd::params {
   require prometheus_cd::main::install
   if ($ps_prom_host == $fqdn) and ($manage_prometheus == true)  {
-    # prometheus directors
+    # prometheus directory
     file { $ps_main_dir:
       ensure   =&gt; directory,
       owner    =&gt; &#39;root&#39;,
@@ -137,6 +148,17 @@ class prometheus_cd::main::dirs (
       seltype  =&gt; etc_t,
       seluser  =&gt; system_u,
     }
+    # service systemfile directory
+    file { $ps_system_file_dir:
+      ensure   =&gt; directory,
+      owner    =&gt; &#39;root&#39;,
+      group    =&gt; &#39;root&#39;,
+      mode     =&gt; &#39;0755&#39;,
+      selrange =&gt; s0,
+      selrole  =&gt; object_r,
+      seltype  =&gt; systemd_unit_file_t,
+      seluser  =&gt; unconfined_u,
+    }
   }
 }</pre>
       </td>
diff --git a/doc/puppet_classes/prometheus_cd_3A_3Amain_3A_3Afiles.html b/doc/puppet_classes/prometheus_cd_3A_3Amain_3A_3Afiles.html
index 3d626a5..9d95201 100644
--- a/doc/puppet_classes/prometheus_cd_3A_3Amain_3A_3Afiles.html
+++ b/doc/puppet_classes/prometheus_cd_3A_3Amain_3A_3Afiles.html
@@ -118,15 +118,27 @@
 20
 21
 22
-23</pre>
+23
+24
+25
+26
+27
+28
+29
+30
+31
+32
+33
+34
+35</pre>
       </td>
       <td>
         <pre class="code"><span class="info file"># File 'manifests/main/files.pp', line 6</span>
 
 class prometheus_cd::main::files (
 ) inherits prometheus_cd::params {
-  require prometheus_cd::main::dirs
-  if ($ps_prom_host == $fqdn) and ($manage_prometheus == true)  {
+    if ($ps_prom_host == $fqdn) and ($manage_prometheus == true)  {
+    require prometheus_cd::main::dirs
     file { $ps_main_file:
       ensure   =&gt; file,
       owner    =&gt; &#39;root&#39;,
@@ -139,6 +151,18 @@ class prometheus_cd::main::files (
       content  =&gt; template(&#39;prometheus_cd/prometheus.yml.erb&#39;),
       notify   =&gt; Service[$ps_prom_service],
     }
+    file { $ps_system_service_file:
+      ensure   =&gt; file,
+      owner    =&gt; &#39;root&#39;,
+      group    =&gt; &#39;root&#39;,
+      mode     =&gt; &#39;0644&#39;,
+      selrange =&gt; s0,
+      selrole  =&gt; object_r,
+      seltype  =&gt; systemd_unit_file_t,
+      seluser  =&gt; unconfined_u,
+      content  =&gt; template(&#39;prometheus_cd/override.conf.erb&#39;),
+      notify   =&gt; Service[$ps_prom_service],
+    }
   }
 }</pre>
       </td>
diff --git a/doc/puppet_classes/prometheus_cd_3A_3Aparams.html b/doc/puppet_classes/prometheus_cd_3A_3Aparams.html
index 651cb71..b70075d 100644
--- a/doc/puppet_classes/prometheus_cd_3A_3Aparams.html
+++ b/doc/puppet_classes/prometheus_cd_3A_3Aparams.html
@@ -359,7 +359,9 @@
 54
 55
 56
-57</pre>
+57
+58
+59</pre>
       </td>
       <td>
         <pre class="code"><span class="info file"># File 'manifests/params.pp', line 17</span>
@@ -394,9 +396,11 @@ class prometheus_cd::params (
 
   # dirs
   $ps_main_dir            = &#39;/etc/prometheus&#39;
+  $ps_system_file_dir     = &#39;/etc/systemd/system/prometheus.service.d&#39;
 
   # files
   $ps_main_file           = &quot;${ps_main_dir}/prometheus.yml&quot;
+  $ps_system_service_file = &quot;${ps_system_file_dir}/override.conf&quot;
 
   # services
   $ps_prom_service        = &#39;prometheus&#39;