anchor.diff:  * Testing HTML content
   * Testing native UI content
   * Setting up a monitoring with:
  -* Graphs about the performance times
  +* Grafana graphs about the performance times (end user perspective)
   * Alerts on errors with screenshots
   * Continuous execution of the test suite in a loop
   
  
positive.code: 
  NOTE: To stop the loop press `CTRL + C`.
  
  After a few runs we should be able the the some graphs. Therefore click on the *Extra Action* button and a grafana dashboard should appear.
  image:.pics/omd_extra_action.png[omd extra action]
  To get better view of the latest results choose `Last 15 minutes` as time interval.
  image:.pics/omd_graph_ok.png[omd graph ok]
  
  === Simulate an Error
  
  To get a feeling how Sakuli reacts on errors we will change the testcase definition `sakuli_demo.js` to a not present link validation:
  
  .link:part_02/sakuli-tests/example_xfce/case1/sakuli_demo.js[`part_02/sakuli-tests/example_xfce/case1/sakuli_demo.js`]
  [soruce,js]
  
negative.code: omd-nagios    | AH00558: httpd: Could not reliably determine the server's fully qualified domain name, using 192.168.199.2. Set the 'ServerName' directive globally to suppress this message
  ----
  
  TIP: To shortcut some special docker-compose commands, you can execute the script link:part_02/omd-nagios/deploy_omd.sh[`part_02/omd-nagios/deploy_omd.sh`] (ensures that containers will be removed and started from scratch)
  
  After the successful startup of the OMD we can now open the OMD Demo page and see two services `example_xfce_centos_chrome` and `example_xfce_centos_chrome`:
  
  1) Open https://localhost:8043/demo
  2) Accept the security warning about the self-signed certificate
  3) Login to OMD with user `omdadmin` and password `omd`
  
  image:.pics/omd_login.png[omd login]
  
  4) Click `Services` to get overview page
  
  image:.pics/omd_services.png[omd services]
  
  === Configure Sakuli tests
  
  After OMD is ready to receive results from Sakuli as passive check, we need to configure the connection in our Sakuli tests to froward the test results to OMD:
  
  1) Add the created OMD network `omd-nagios` as external link to the `docker-compose.yml` of each sakuli test definition, so Sakuli can send data to the OMD server:
  
  