Testpool provides a structured log of profile status that includes the number of available VMs for each profile. This information can be pushed to logstash and visualized with Kibana or Graphana.
The following instructions explain how to enable structured logging and push them to Logstash using Filebeat.
ELK stack 5.5 is required which natively supports JSON FileBeat output. There are numerous sites to explain ELK installation e.g. http://www.itzgeek.com/how-tos/linux/ubuntu-how-tos/setup-elk-stack-ubuntu-16-04.html was used to test the following content.
Configure testpool to save profile status. Edit the YAML file:
/etc/testpool/testpool.ymlValidate changes:
tplcfgcheck /etc/testpool/testpool.ymlUncomment tpldaemon.profile.log. The default value is /var/log/testpool/profile.log and restart testpool daemon:
sudo systemctl restart tpl-daemonConfigure Logstash to receive JSON structured content. An example configuration file at /etc/testpool/etc/logstash/conf.d/02-testpool-beat-input.conf.:
sudo cp /etc/testpool/etc/logstash/conf.d/02-testpool-beat-input.conf /etc/logstash/conf.d/02-testpool-beat-input.conf
sudo systemctl restart logstashMake sure elastic search and logstash start on boot:
sudo systemctl enable logstash sudo systemctl enable elasticsearch
The Logstash 02-testpool-beat-input.conf content.
../../etc/logstash/conf.d/02-testpool-beat-input.conf
Configure Filebeat to push JSON content. An example is available at /etc/testpool/filebeat/filebeat.yml and can be copied verbatim.:
sudo cp /etc/testpool/filebeat/filebeat.yml /etc/filebeat/filebeat.yml
sudo systemctl restart filebeatThe content below shows a sample Filebeat configuration.
../../etc/filebeat/filebeat.yml
A sample Kibana dashboard with supporting visualization can be imported into Kibana. Content is available at: /etc/testpool/kibana/testpool.json. /etc/testpool/kibana/testpool-dashboard.json.