Docker tips for real life

Docker tips that can help your day be easier with docker. Very common Docker commands and how they impact the architecture

Transcript

1. TWITTER/JPRIVILLASO GITHUB/JPRIVILLASO MEDIUM/@JPRIVILLASO DOCKER TIPS FOR REAL LIFE
2. RELEASE MANAGER
3. MOTIVATION WHEN WE START THINKING ABOUT CLOUD SOLUTIONS, DOCKER IS ALWAYS PRESENT. IT’S RELEVANT BECAUSE THE WORLD IS NOW CLOUDY
4. WHY IS DOCKER RELEVANT? REF. 1
5. WE PROBABLY USE AT LEAST ONE OF THE PREVIOUS APPLICATIONS
6. Container Container Container Container Container
7. TODAY DOCKER IS A DEFAULT TOOL FOR BUILDING AND DEPLOYING APPLICATIONS
8. AND, WHAT DO WE GAIN ?
9. DOCKER IN CLOUD APPLICATIONS
10. DECOUPLED MICROSERVICES
11. HORIZONTAL SCALABILITY ORCHESTRATOR
12. THE REAL QUESTION: HOW DOES IT IMPACT DEV’S LIFE ?
13. A DEV MUST UNDERSTAND HOW DOCKER WORKS TO MINIMIZE PROBLEMS BETWEEN THE DEVELOPMENT ENVIRONMENT AND PRODUCTION ENVIRONMENT
14. CONTAINER BASIC LIFECYCLE: 1. BUILD 2. RUN 3. PUSH
15. TIPS 1. STOP DOWNLOADING BINARIES AND JUST RUN A COMMAND TO HAVE YOUR TOOLS INSTALLED
16. TIPS 2. EXECUTE COMMAND INSIDE A CONTAINER
17. TIPS 3. SEE LOGS OF A CONTAINER
18. TIPS 4. REMOVE UNUSED CONTAINERS
19. TIPS 5. THE MOST IMPORTANT: AUTOMATE YOUR COMMANDS
20. TIPS
21. TIPS 6. CREATE YOUR OWN NETWORK
22. TIPS 7. CREATE DOCKER HEALTH FOR CONTAINERS
23. TIPS 8. CACHING INTERMEDIATE LAYERS
24. TIPS UNDERSTANDING BETTER DOCKER CACHE RUN, COPY AND ADD -> CREATE LAYERS DOCKER PROCESS EVERY LAYER, AND SEE IF SOMETHING CHANGED. IF YES, THE CACHE IS INVALIDATED CAVEATS: ENVIRONMENTS LIKE AWS CODE PIPELINE DON’T ALLOW YOU TO USE DOCKER CACHE. THEY BUILD THE ENTIRE IMAGE AT EVERY BUILD COPY ONLY WHAT IS NECESSARY. USE .DOCKERIGNORE FILE
25. TIPS UNDERSTANDING BETTER DOCKER CACHE ORDER THE LAYERS FROM THE LESS FREQUENTLY CHANGED (TO ENSURE THE BUILD CACHE IS REUSABLE) TO THE MORE FREQUENTLY CHANGED
26. REAL WORLD APPLICATIONS USING MICROSERVICES ARCHITECTURE TO CREATE MICROFRONTEND APPLICATIONS USING MICRO SERVICES TO CREATE SCALABLE APPLICATIONS
27. REFERENCES 1. HTTPS://SYSDIG.COM/BLOG/2018-DOCKER-USAGE-REPORT/ 2. BUILDING MICRO SERVICES BOOK, SAM NEWMAN
28. QUESTIONS?