The trends page can be accessed via the monitor menu:

Monitor > Trends

Trends can be used to track changes over time and monitor various parameters including all available facts. For example, a trend counter might monitor how many hosts use which operating systems and present a chart accordingly.

Viewing a list of trends
  • The Add Trend Counter button (1) allows you to add a new trend.

  • The list (2) shows all currently collected trends.

  • The Action menu (3) allows you to edit or delete a trend.

Trend counters are relatively resource intensive. They should be used accordingly as each trend counter runs as a separate process performing database queries at regular intervals of 30 minutes.

Viewing a Trend

A trend visualising the used operating systems over the last 30 days may look as follows:

Trend displaying the Puppet facter operating system name
  • The Trends of the last days drop down menu (1) allows you to view a trend for the last 30 days.

  • The visualisation (2) shows the course of the number of hosts of each operating system. The x-axis displays the date and the y-axis displays the number of hosts. Each colour represents a different operating system.

This example shows that there’s been three days with an additional need of extra hosts and a period of a bit over a week with extra Debian based hosts.

Adding a Trend

Clicking the add trend counter button, as shown above, takes you to the following page:

Adding a trend
  • The Trend Type drop down menu (1) refers to either a preconfigured type or facts, as shown in the example above. This allows you to access any Ansible or Puppet fact.

  • The Trendable drop down menu (2) allows you to select the fact you want to visualise.

  • The Name field (3) allows you to set an arbitrary name for the new trend.

  • Clicking the Submit button (4) saves your changes to orcharhino.

Editing a Trend

This example edits the ComputeResource trend:

Editing a trend
  • The table (1) shows all currently active compute resource providers. You may rename the compute resources as you like.

  • Clicking the Submit button (2) saves your changes to orcharhino.