This example illustrates how to use yabeda gem suite with rails application to draw graphs for app metrics.

Recent versions of Docker and Docker Compose installed.

• Execute docker-compose up to start.
• Go to rails application at http:https://localhost:5000
• Hit the button and refresh page few times
• Go to Grafana Web UI at http:https://localhost:3000/d/000000001/yabeda-metrics-for-rails-and-sidekiq?refresh=10s (user: admin/admin)
• Look for graphs

• Sample Rails application is equipped with yabeda-rails, yabeda-sidekiq, and yabeda-prometheus gems and properly configured.
• Raw rails metrics are exposed at http:https://localhost:5000/metrics
• Raw sidekiq metrics are exposed at http:https://localhost:5100/metrics
• The Prometheus Web UI runs at http:https://localhost:9090
• The Grafana Web UI runs at http:https://localhost:3000 , user: admin/admin.
• The Sidekiq Web UI is available at http:https://localhost:5000/sidekiq

If your grafana's container is not running correctly after you run docker-compose up you're probably getting this error, if you check at docker ps -a you'll see your grana container with the status Exited, picks the id of this container and run docker logs YOUR_GRAFANA_CONTAINER_ID and check if the errors is equal to the following:

GF_PATHS_DATA='/var/lib/grafana' is not writable.                                                                                      
You may have issues with file permissions, more information here: http:https://docs.grafana.org/installation/docker/#migration-from-a-previou
s-version-of-the-docker-container-to-5-1-or-later                                                                                      
mkdir: cannot create directory '/var/lib/grafana/plugins': Permission denied   

Replace at your docker-compose.yml line 38 by your user's id that you will get on the following command:

id -u

The configurations are based off the following articles and repositories:

• https://finestructure.co/blog/2016/5/16/monitoring-with-prometheus-grafana-docker-part-1
• https://github.com/NikolajLeischner/local-prometheus-grafana
• https://www.digitalocean.com/community/tutorials/how-to-add-a-prometheus-dashboard-to-grafana

This example is available as open source under the terms of the MIT License.