Hành trình DevOps: 12 bài học giúp hệ thống ổn định hơn (và bạn bớt trực đêm)

A practitioner's guide distilling 12 DevOps lessons focused on system stability: standardize deployments via CI/CD with progressive delivery, manage infrastructure as code with clear conventions, and build full observability using metrics, logs, and traces. It also emphasizes symptom-based alerting over cause-based alerts, blameless postmortems for incident response, and canary deployments to reduce blast radius.