o11y

A DevOps shop showcase of observability in action.

Navigate this repository with the blog article !

Contents

A Terraform project that deploys to a Minikube cluster the following tools:

• Grafana
• Grafana-Agent
• Kube-Prometheus-Stack
• Loki
• Promtail
• Tempo
• Minio
• Pyroscope

It also deploys the following example services:

• The WallAPI, a REST API written in Golang instrumented via OpenTelemetrySDK and profiled by Pyroscope via /pprof
• The WallClient, a front-end client written in React, auto-instrumented via Faro -> Grafana Agent -> Tempo & Loki

Minikube

To test the complete stack, create a Minikube cluster then apply with Terraform

$ minikube start
...
$ terraform apply
...

Once applied, you may add the Ingresses for the various services to your /etc/hosts file

$ kubectl get ingress -n monitoring
NAME                               CLASS    HOSTS                 ADDRESS        PORTS   AGE
grafana                            <none>   grafana.local         192.168.49.2   80      10m
...

Note: On Windows, you may need to use the minikube tunnel command and use 127.0.0.1 instead !

You may now access services via your browser.