DevOps Is Culture and Practice
DevOps breaks down silos between development and operations, accelerating delivery while improving reliability.
Core Principles
Collaboration replaces silos. Automation reduces manual work. Measurement drives improvement. Sharing spreads knowledge.
Continuous Integration
Developers merge code frequently. Automated builds catch issues. Tests run automatically. Feedback loops stay tight.
Continuous Delivery
Code is always deployable. Automated pipelines to production. Deployment decisions become business choices. Risk reduces with smaller changes.
Infrastructure as Code
Infrastructure defined in version control. Changes tracked and reviewed. Environments consistent and reproducible. Scaling becomes configuration.
Monitoring and Observability
Metrics show what is happening. Logs explain why. Traces follow requests. Alerts notify of issues.
Site Reliability Engineering
Error budgets balance speed and stability. Service Level Objectives define targets. Toil is automated away. Blameless postmortems drive learning.
Toolchain
Git for version control. Jenkins, GitLab CI, or GitHub Actions for pipelines. Docker for containerization. Kubernetes for orchestration.
Security Integration
DevSecOps embeds security early. Automated scanning catches vulnerabilities. Policy as code enforces standards. Compliance becomes continuous.
Metrics
Deployment frequency measures velocity. Lead time for changes shows efficiency. Change failure rate indicates quality. Recovery time reveals resilience.
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