Year: 2026

Jenkins is an open-source automation server that automates building, testing, and deploying software through CI/CD pipelines.

An observability pipeline collects, transforms, routes, and filters telemetry data between sources and destinations for cost optimization.

The USE method monitors infrastructure resources by tracking Utilization, Saturation, and Errors for every resource.

The RED method monitors three key metrics for request-driven services: Rate, Errors, and Duration.

The four golden signals are latency, traffic, errors, and saturation — the key metrics every production service should monitor.

eBPF is a Linux kernel technology that allows programs to run safely in kernel space, enabling deep observability and security without code changes.

Grafana Tempo is an open-source distributed tracing backend that stores traces in object storage, requiring only a trace ID for retrieval.

Grafana Mimir is an open-source, horizontally scalable long-term storage backend for Prometheus metrics at massive scale.

Thanos extends Prometheus with long-term storage, global querying across clusters, and high availability for production monitoring.

The ELK Stack is an open-source log management solution: Elasticsearch for search, Logstash for processing, Kibana for visualization.