If you haven't already cloned the repo, don't worry. We're gonna be working through the BASH script now. As you can see, I'm already on the main branch. Well, let's go ahead and start up our Prometheus server in three node exporters. What you're going to be seeing is curling down the binaries for the exporters as well as the Prometheus server, altering the YAML configuration, adding some rules and then subsequently starting everything back up again.

Let's go check out the dashboard now. Here's the landing page as you see, it's exactly like the diagram we saw earlier, but what's great is if we want to see if a metric is available for us we can just click the insert metric at cursor drop down menu and select the metric available.

Let's check out something that we all know such as node AARP entries, grabbing the layer two devices for all of our note entries. Awesome, now let's check out the go version that we have here. It looks like all of our nodes are running on 1144 and on the branch head pretty straightforward.

All these metrics are great to sort through but what if we wanted to see all of the raw metrics available on this end point? Well, all we would need to do is navigate to the end URI that we've exposed or defined earlier slash metrics. What you're seeing here are the metrics that Prometheus has exposed for itself by itself to be collected by itself.

I know it's a lot but these are the metrics that Prometheus's scraping and then categorizing and itself. If you wanted to see one of our note exporters' all we would have to do is navigate to the same AAIR on local host, 8082. They look quite similar, but if we scroll down or if we're lazy, just do a Control + Search for node, we can see that this is indeed a node exporter.

Navigating back to the dashboard, you'll notice that we can also add a graph for multiple graphic representations of data creating a whole dashboard if we wanted to. Let's check out a metric now. And if we just click on graph we get a graphical representation of this data. The same applies for any metric that we choose so if we wanted to choose a different metric with maybe a more striking appearance, we could do so now.

That does it for the example for this course I hope you enjoyed a quick tour through Prometheus UI and as well as how to check out some raw metrics. If you'd like to do more, feel free to clone the repository and run the bash script called it letsgo.bash. It'll get your environment set up for you have several note exporters all on your local host so you can get better at practicing expressions and get more familiar with the Prometheus UI.

Lectures

Introduction - What is Prometheus? - Features Overview - Components Overview - Closing Out