Guided practice — Add a business metric, rebuild the image, see it in Grafana

Guided practice29 min
Duration
45 to 60 min
Module
3/7
You will build
a counter recherches_catalogue_total{categorie} added to the API's real code, a rebuilt Docker image, and the new metric read in /metrics, in Prometheus, then in Grafana Explore
Deliverable
the output of sum by (categorie) (rate(recherches_catalogue_total[1m])) with eleven categories, and the id_requete of your own search found in Loki

How to read this page. Click each "Show …" to expand a section; the ## headings remain visible even when collapsed. Read in order: Objective, In brief, The dataset, First queries, then The API in the terminal, Prometheus, Grafana and Loki. Open a single appendix: A if you are on Windows (PowerShell), B if you are on Linux, macOS, WSL 2 or Git Bash. Appendix C (If it breaks) is common to both.

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This lesson is part of the “Instrument the deployed solution” module

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