DevOps · Learning hub

Grafana Loki cheat sheet & developer notes

Grafana Loki cheat sheet and 2 curated developer notes — core concepts, patterns, and interview prep. Maintained by the DevRecall team.

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01 · Grafana Loki

Ingestion, Storage & When Loki Fits

Ingestion, Storage & When Loki Fits. Promtail & Object Storage. Promtail (or the newer Grafana Alloy) is the client-side agent that discovers log sources, attaches labels, and pushes data to Loki's ingestion API — analog…

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02 · Grafana Loki

Labels, Streams & "Prometheus for Logs"

Labels, Streams & "Prometheus for Logs". Index Labels, Not Full Text. Grafana Loki is a horizontally scalable, cost-effective log aggregation system integrating tightly with Grafana. Its core distinguishing idea: index o…

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Observability: Logs, Metrics and TracesWhat logs, metrics and traces each answer, why label cardinality breaks metrics, how a trace ID crosses services, and how SLOs turn signals into alerts.Intermediate·15 min

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