Case study of the good enough architecture

Transcript

1. @jkubrynski
   CASE STUDY
   OF THE
   GOOD ENOUGH ARCHITECTURE
   JAKUB KUBRYNSKI
   jk@devskiller.com / @jkubrynski / kubrynski.com
   

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2. $ WHOAMI
   DEVSKILLER CO-FOUNDER
   BOTTEGA TRAINER
   DEVOXX.PL PROGRAM COMMITTEE MEMBER
   OPEN SOURCE CONTRIBUTOR
   

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3. "Have no fear of perfection - you'll never reach it." ― Salvador Dalí
   

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4. WHAT YOU CAN LEARN
   FROM A STARTUP
   

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5. IS THERE
   A PERFECT
   ARCHITECTURE?
   

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6. FAST FEEDBACK
   AND
   COST-EFFECTIVE
   

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7. 1. MOST ORGANIZATIONS "DO AGILE"
   2. MOST ORGANIZATIONS SHIP NEW FEATURES
   IN MONTHS
   

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8. DON'T DO AGILE.
   BE AGILE!
   

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9. CONTINUOUS DELIVERY
   

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10. RELEASE
    VS
    DEPLOYMENT
    

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11. REGRESSION
    IS TOO EXPENSIVE
    

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12. VERIFY CRITICAL PATHS
    AND LET YOUR USERS DO THE REST
    

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13. BUT...
    CARE ABOUT UNIT TESTS
    AND FIX BUGS AS ASAP AS POSSIBLE
    

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14. MICROSERVICES
    AUTONOMOUS RELEASES
    CLOUD READY
    FAST PIPELINES
    

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15. COMMUNICATION
    IS THE ROOT OF ALL EVIL
    

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16. SLA
    99.9 ^ 10 = 99.0
    

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17. QUALITY
    SHARED MODEL?
    E2E TESTS?
    

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18. CONTRACTS FTW!
    IF A==C && B==C
    THEN A==B
    

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19. SAY NO TO VERSIONING
    BE UP TO DATE
    

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20. PERFORMANCE
    

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21. PERFORMANCE TESTS
    ARE EVEN MORE EXPENSIVE
    THAN REGRESSION
    

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22. PERFORMANCE TESTS
    CANARY DEPLOYMENTS
    MONITORING
    

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23. MONITORING
    IS THE NEW TESTING
    

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24. MONITORING
    PERFORMANCE
    SYSTEM HEALTH
    EXCEPTIONS
    

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25. METRICS EVERYWHERE
    LIVE BUSINESS INTELLIGENCE
    DATA DRIVEN ORGANIZATION
    

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26. DATA DRIVEN
    MEANS
    ONLY VALUABLE STUFF
    

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27. ANY ACTION IS
    AN INVESTMENT
    

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28. THINK ABOUT
    ROI
    

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29. SAFE TO FAIL
    MINIMIZE IMPACT
    

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30. SAFE TO FAIL
    SELF-HEALING COMMUNICATION
    

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31. SAFE TO FAIL
    INSTANT WARNING
    

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32. SAFE TO FAIL
    ROLLBACK
    

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33. SAFE TO FAIL
    ELIMINATE HUMAN ERRORS
    

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34. REPEATABILITY
    

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35. AUTOMATION
    

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36. MACHINES COMPARED TO HUMANS:
    ARE GOOD IN REPEATING TASKS
    ARE EASY TO ESTIMATE
    ARE MUCH CHEAPER
    

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37. AUTOMATE
    TESTS
    

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38. AUTOMATE
    DEPLOYMENTS
    

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39. AUTOMATE
    SETUP
    

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40. AUTOMATE
    INFRASTRUCTURE
    

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41. EVERYTHING IS CODE
    APPLICATION SOURCE
    BUILD JOBS
    DEPLOYMENT PIPELINES
    DEPLOYMENT SCRIPTS
    INFRASTRUCTURE
    OS CONFIGURATION
    APPLICATION PROPERTIES
    RUN BOOKS
    

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42. NO BACKUPS
    * EXCEPT DATA AND GIT
    

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43. MINIMIZE OVERHEAD
    BY
    KEEPING ORDER
    

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44. CONVENTION
    OVER
    CONFIGURATION
    

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45. CONVENTION EXAMPLE
    repository: git.acme.com/repos/{serviceName}.git
    artifactId: target/{serviceName}.jar
    application home: /opt/{serviceName}
    logs: /opt/{serviceName}/logs/service.log
    dashboard:
    grafana.acme.com/dashboard/db/{serviceName}
    public ip: acme-prod-weu-{serviceName}-pip
    loadbalancer: acme-prod-weu-{serviceName}-lb
    VMs: acme-prod-weu-{serviceName}-vm-{i}
    

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46. GOOD ENOUGH
    

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47. KEY TAKEAWAYS
    MONITORING
    AUTOMATION
    CONVENTIONS
    CONTINUOUS DELIVERY
    

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48. QUESTIONS?
    

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49. THANKS
    FOR YOUR PATIENCE
    

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