Hello Ansiblers, As the saying goes, "A dashboard a day keeps nasty bugs at bay". This presentation will be about our experience in instrumenting a complex system using open source tools (Metrics, InfluxDB and Grafana) to gain some valuable performance insights. Putting such as stack in place was extremely useful to help us find a wide range of issues (from the OS, and all the way to our application). And of course, as great believers of infrastructure as code, we used Ansible to deploy and configure all the things so there will be some playbooks. I hope to see you there and then.