Playing with the demo application
The demo application is a simulated E-commerce food store application that also exposes some of it's metrics (the food store application might take up to an additional minute to be initialized).
Generating some metrics
The url for the food store is: http://metrics-demo-app-metrics-demo.[[HOST_SUBDOMAIN]]-80-[[KATACODA_HOST]].environments.katacoda.com/
- Once you are able to access the food store application, play around with it, try to buy the products you like [Everything here is free ;) ].
- When you play around with the food store, you make the server serve some requests (GET/POST/..),
some of the metrics for these requests are generated and exposed for Prometheus to collect.
The exposed metrics can be found here: http://metrics-demo-app-metrics-demo.[[HOST_SUBDOMAIN]]-80-[[KATACODA_HOST]].environments.katacoda.com/metrics
- This is the endpoint where Prometheus will scrape (collect) metrics from periodically and store them on a persistent storage device like a hard drive (Using OpenShift PersistentVolumes).
- If you don't see similar metrics (pictured above) in your environment, try to make an order with the ecommerce application to generate a few metrics.