Tools such as Prometheus and OpenTelemetry help us monitor the health, performance, and availability of our complex distributed systems. Both are open source projects under the Cloud Native Computing Foundation (CNCF) umbrella – but what role does each play in observability? OpenTelemetry (OTel for short), is a vendor-neutral open standard for instrumenting, generating, collecting, and exporting telemetry data. Prometheus is a fixture of the observability landscape, widely relied upon for m...