devops practices

Transcript

1. devops Practices
2. $ whoami • I am Abdelati, Junior DevOps/Data Engineer • Let's talk @kaizendae at twitter $ whatis • devops practices and culture. • Container good practices. • Walkthrough a CI/CD pipeline. • This is no exhaustive content.
3. What is devops?
4. Becoming devops or Cargo-culting? ”Cargo culting describes the practice of emulating observed behaviors or implementing tools into an environment without fully understanding the reasoning or circumstances that led to success using those strategies.”
5. Old/Current Landscape 2
6. Old/Current Landscape
7. PROBLEMS APPEAR!!!!
8. Infrastructure as Code? ✖ maintain the settings of individual deployment environments. ✖ Environment becomes a snowflake. Snowflake: a unique configuration that cannot be reproduced automatically.
9. Break the silos! Silos come from a lack of communication and collaboration between teams, not simply from a separation of duties
10. Blameless Culture! Failures are Normal and expected. The Focus is on predictability and recoverability.
11. Containerization or (Docker) ✔ Isolation ✔ Composability ✔ portability
12. Kubernetes && Cloud Native Applications Cloud-Native app is an app that is designed to meet modern business demands of auto-scaling, self-healing, rolling updates.
13. New Landscape (Agile/devops)
14. Continuous Integration (CI) It’s the process of continuously(frequently) integrating new code written by developers with a mainline or “master” branch throughout the day. • Discover breaking changes quickly.
15. Continuous Delivery (CD) A set of tools Takes CI one step further, makes sure a deployable artefact is always available.
16. Continuous Deployment (CD) A set of tools Frequently deploying changes to production automatically by defining tests and validations to minimize risk. • Job satisfaction for team. • Discover sleeping bombs quickly. • Learn more quickly from post-mortems. • Ship faster for a happier customer.
17. Continuous Deployment (CD) If you don’t have a robust set of tests to catch issues early in the pipeline, you’ll end up rolling bad code to all your environments. Needs high degree of automation and observability
18. Best Practices of Container Builds ✔ Keep a small size (push-pull time, security) ✔ Use optimized base images ( ex: alpine, debian-slim) ✔ Execute using non-root ✔ Optimize for cache use. ✔ Use multistage builds.
19. Optimize for cache use
20. Use multistage builds
21. Deployment Strategies • Rolling Updates (zero-down-time) • Blue/Green • Canary Deployment
22. Rolling Updates (zero-down-time)
23. Blue/Green Strategy
24. Canary Strategy
28. Resources • Docker (101 - 102 - 103) - Youtube CNCG • Docker for the absolute beginner - KodeKloud • GeeksBlabla devops 101 - Episode #83 • Demo - Gitlab Repos