Docker for Developers
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The document discusses Docker and its relevance for developers, highlighting the concept of containers versus virtual machines. It outlines various components of Docker including images, containers, Dockerfiles, and docker-compose, emphasizing their roles in development and deployment. The author also reflects on the initial goal of simplifying project launches to a single command.
Docker for Developers
- 1. nine internet solutions AG / docker for developers / David Dieulivol Docker for developers
- 2. nine internet solutions AG / docker for developers / David Dieulivol David Dieulivol Software engineer & niner since 2015 Lausanne, Vaud, CH cat owner, dog person
- 3. nine internet solutions AG / docker for developers / David Dieulivol
- 4. nine internet solutions AG / docker for developers / David Dieulivol The nine story
- 5. nine internet solutions AG / docker for developers / David Dieulivol By developers, for developers
- 6. nine internet solutions AG / docker for developers / David Dieulivol Concepts for second talk
- 7. nine internet solutions AG / docker for developers / David Dieulivol 1 - Containers & Docker 2 - From theory to practice
- 8. nine internet solutions AG / docker for developers / David Dieulivol
- 9. nine internet solutions AG / docker for developers / David Dieulivol Nine, 2 years ago
- 10. nine internet solutions AG / docker for developers / David Dieulivol
- 11. nine internet solutions AG / docker for developers / David Dieulivol 25 services
- 12. nine internet solutions AG / docker for developers / David Dieulivol Ceph Elasticsearch Mysql OpenTSDB Postgres PowerDNS RabbitMQ Rails Redis Php…
- 13. nine internet solutions AG / docker for developers / David Dieulivol Ceph Elasticsearch Mysql OpenTSDB Postgres PowerDNS RabbitMQ Rails Redis Php…
- 14. nine internet solutions AG / docker for developers / David Dieulivol In development?
- 15. nine internet solutions AG / docker for developers / David Dieulivol 8-10 terminals open
- 16. nine internet solutions AG / docker for developers / David Dieulivol
- 17. nine internet solutions AG / docker for developers / David Dieulivol Our goal back then • One command to launch Cockpit • If possible, a fast one
- 18. nine internet solutions AG / docker for developers / David Dieulivol
- 19. nine internet solutions AG / docker for developers / David Dieulivol Physical Machine
- 20. nine internet solutions AG / docker for developers / David Dieulivol Virtual Machine
- 21. nine internet solutions AG / docker for developers / David Dieulivol Container
- 22. nine internet solutions AG / docker for developers / David Dieulivol VM vs Container
- 23. nine internet solutions AG / docker for developers / David Dieulivol VM do hardware isolation Container do process isolation
- 24. nine internet solutions AG / docker for developers / David Dieulivol Mental model Container = Lightweight VM
- 25. nine internet solutions AG / docker for developers / David Dieulivol Anatomy of a container by Jérome Petazzoni
- 26. nine internet solutions AG / docker for developers / David Dieulivol TL;DR Namespaces, cgroups, & filesystem magic
- 27. nine internet solutions AG / docker for developers / David Dieulivol
- 28. nine internet solutions AG / docker for developers / David Dieulivol Software container for the masses
- 29. nine internet solutions AG / docker for developers / David Dieulivol Complete Tool belt to work with containers
- 30. nine internet solutions AG / docker for developers / David Dieulivol
- 31. nine internet solutions AG / docker for developers / David Dieulivol
- 32. nine internet solutions AG / docker for developers / David Dieulivol 1 - Docker image
- 33. nine internet solutions AG / docker for developers / David Dieulivol • Snapshot of a container • Usually created from a Dockerfile • Read-only • Stored in a registry
- 34. nine internet solutions AG / docker for developers / David Dieulivol 2 - Docker container
- 35. nine internet solutions AG / docker for developers / David Dieulivol • Mental model: lightweight VM • Under the hood: Docker Image with a R/W layer on top of it • Created with docker run <image>
- 36. nine internet solutions AG / docker for developers / David Dieulivol 3 - Dockerfile
- 37. nine internet solutions AG / docker for developers / David Dieulivol • Command-line commands to create a Docker image • Used by docker build
- 38. nine internet solutions AG / docker for developers / David Dieulivol 4 - docker-compose
- 39. nine internet solutions AG / docker for developers / David Dieulivol Container orchestration
- 40. nine internet solutions AG / docker for developers / David Dieulivol
- 41. nine internet solutions AG / docker for developers / David Dieulivol
- 42. nine internet solutions AG / docker for developers / David Dieulivol • Getting closer to production setup • Exactly the same environment for everybody • Great for newcomers Why use Docker in Development?
- 43. nine internet solutions AG / docker for developers / David Dieulivol We can launch Cockpit (or any other project for that matter) with one command Two years later…
- 44. nine internet solutions AG / docker for developers / David Dieulivol