Hello, Willy! – Docker

Transcript

1. Hello, Willy!
2. Why? • Work in local, does not work in production • Use existed app • Multiple isolated daemon instances • Bundle you app • Dependency hell
3. Roadmap • Glossary: Сontainer? • Tools • Use Cases
4. Glossary • Image
5. Glossary • Image • Container
6. Containers?
7. Container is not VM • Lite for machine: size, CPU, memory • VM provides more isolation • Plenty of tools • Easy to manage • A lot of existed images
8. Glossary • Image • Container • Volume
9. Glossary • Image • Container • Volume • Registry
10. Glossary • Image • Container • Volume • Registry • Docker
11. Glossary • Image • Container • Volume • Registry • Docker • Compose
12. Glossary • Image • Container • Volume • Registry • Docker • Compose • Machine
13. Tools • Docker CLI – docker • Compose – docker-compose • Machine – docker-machine
14. Docker CLI • Image
15. Docker CLI • Container
16. Compose
17. Machine
18. Use Cases • Work in local, does not work in production • Use existed app • Multiple isolated daemon instances • Bundle you app • Dependency hell
19. Use Cases • Work in local, does not work in production ◦ Locally: ▪ Build image ▪ Push to the registry ◦ Anywhere: ▪ Pull the image from registry ▪ Run image
20. Use Cases • Use existed app ◦ Postgis ◦ MongoDB ◦ Redis ◦ Cacti ◦ Node ◦ Python ◦ Ruby ◦ Java
21. Use Cases • Multiple isolated daemon instances ◦ Serverauditor Termius ssh farm
22. Use Cases • Dependency hell ◦ Containers are isolated ◦ Use build dependencies only when build ◦ Share build environment with build-images
23. Takeaways • Glossary • Tools • Use Cases
24. References • https://washraf.gitbooks.io/the-docker-ecosystem/content/i ndex.html • https://docs.docker.com/