Ship OpenTelemetry Data to Coralogix via Reverse Proxy (Caddy 2)

The tutorial outlines a method for securely sending data from a Kubernetes cluster to Coralogix using a reverse proxy, specifically Caddy 2, to manage data egress. It assumes prior deployment of the OpenTelemetry Collector as a DaemonSet within the cluster and provides step-by-step instructions on installing and configuring Caddy 2 on a Debian server outside the Kubernetes environment. The process involves setting up the Caddy server to forward gRPC traffic through HTTPS to Coralogix, configuring metrics monitoring using Prometheus, and adjusting OpenTelemetry settings to route data through the Caddy reverse proxy. The tutorial highlights the importance of using TLS for secure data transmission in production environments, though it demonstrates an insecure setup for instructional purposes. It concludes by enabling users to monitor Caddy 2 through the Coralogix dashboard and setting up alerts for any issues with the egress controller.