Observability

• Google has released in a book in 2016 about how google runs production called it as Site Reliability Engineering
• Site Reliability Engineering Overview
• Golden Signals
• SLIs, SLOs and SLAs
• Observability

Prometheus and Grafana

• Prometheus Architecture
• Installing Prometheus on kubernetes
  • Helm Chart
  • using Prometheus Operator Refer Here
• PromQL Cheatsheet
• Grafana: Installation Refer Here and Refer Here for helm charts
• Getting logs from kubernetes
  • Fluentd
  • loki
  • elastic beats
• Prometheus Operator usage Refer Here

Making Applications Observable

• Getting Metrics from application into Prometheus
  • Exporters: To get metrics from well known servers
  • In the application code expose prometheus metrics endpoint
• Logs:
  • Any enterprise apps generate logs
  • If the logs are written to files use log agents (fluentd)
  • Developers can code to directly send logs to centralized log server
• Traces:
  • For sending traces of your application to almost any tool there is a standard called as open telemetry