Serverless and Software Craftsmanship

From ServerlessConf New York 2017

Transcript

1. SERVERLESS AND SOFTWARE CRAFTSMANSHIP
2. WHO AM I Florian Motlik ‣Co-Founder and former CTO of Codeship ‣Former CTO of Serverless Inc AWS/Serverless/Development Process Consultant
 Need help in your infrastructure: flo@theserverlessway.com T W I T T E R : @ F L O M O T L I K W E B S I T E : T H E S E R V E R L E S S WAY. C O M E M A I L : F L O @ T H E S E R V E R L E S S WAY. C O M
3. HOW TOOLING WILL MAKE OR BREAK SERVERLESS INFRASTRUCTURE
4. LET’S FOCUS ON US TODAY
5. On-Prem Virtual Cloud Servers Private Cloud Serverless Cloud-Native
6. PAST SERVER SERVER SERVER SERVER SERVER SERVER SERVER SERVER SERVER SERVER SERVER SERVER
7. PAST SERVER SERVER SERVER SERVER SERVER SERVER SERVER SERVER SERVER SERVER SERVER SERVER Application cluster Database cluster Data and ETL Pipeline
8. SERVERLESS INFRASTRUCTURE Service A F1 F2 F3 Service C F1 F2 Service B F1 Service E F1 F2 F3 Service D F1 F2 F3 F4 F5 S3 Kinesis DynamoDB Api Gateway Server ECS Cluster C1 C2 C3
9. WHY ARE WE DOING THIS?
10. WELL, PRODUCTIVITY
11. WHAT IS PRODUCTIVITY?
12. EFFICIENTLY IMPLEMENTING THE MOST EFFECTIVE SOLUTION FOR OUR CUSTOMERS
13. SHITTY QUALITY ISN’T EFFECTIVE OR EFFICIENT
14. FIREFIGHTING IS NOT PRODUCTIVE WORK
15. OK SO EFFECTIVENESS?
16. HOW CAN WE BE EFFECTIVE ▸ Understanding our Customers ▸ Working with them to continuously understand their needs ▸ Having the time to do it!
17. OK SO WHAT ABOUT EFFICIENCY?
18. MAKE GOOD STUFF HAPPEN FAST OVER A LONG TIME
19. SO HOW DOES SOFTWARE CRAFTSMANSHIP APPLY HERE?
20. MANIFESTO FOR SOFTWARE CRAFTSMANSHIP ▸ Not only working software, but also well-crafted software ▸ Not only responding to change, but also steadily adding value ▸ Not only individuals and interactions, but also a community of professionals ▸ Not only customer collaboration, but also productive partnerships
 
 
 http://manifesto.softwarecraftsmanship.org/
21. WE ARE TIRED OF WRITING CRAP!
22. WHAT THAT MEANS FOR CODE ▸ Well written code ▸ Well tested code ▸ Well documented (where necessary) code ▸ Easy to change ▸ …
23. INFRASTRUCTURE IS NOW PART OF OUR CODE
24. OUR INFRASTRUCTURE IS AN EXTENSION OF OUR CODE Service A F1 F2 F3 Service C F1 F2 Service B F1 Service E F1 F2 F3 Service D F1 F2 F3 F4 F5 S3 Kinesis DynamoDB Api Gateway Server ECS Cluster C1 C2 C3
25. IT’S ALL ABOUT THE GLUE
26. WHAT THAT MEANS FOR INFRASTRUCTURE ▸ Well automated infrastructure ▸ Well monitored infrastructure ▸ Well operated infrastructure ▸ Well documented (where necessary) infrastructure ▸ Easy to change ▸ …
27. EQUALLY IMPORTANT TO THE QUALITY OF OUR CODE
28. AND WE ARE RESPONSIBLE FOR IT
29. NOT JUST DIFFERENT TOOLING, BUT DIFFERENT WAY TO WORK
30. PAST SERVER SERVER SERVER SERVER SERVER SERVER SERVER SERVER SERVER SERVER SERVER SERVER Application cluster Database cluster Data and ETL Pipeline
31. SERVERLESS INFRASTRUCTURE Service A F1 F2 F3 Service C F1 F2 Service B F1 Service E F1 F2 F3 Service D F1 F2 F3 F4 F5 S3 Kinesis DynamoDB Api Gateway Server ECS Cluster C1 C2 C3
32. AND ITS GETTING MORE COMPLICATED
33. NEW FEATURES COME IN ALL THE TIME AND WE HAVE TO DEAL WITH IT
34. SERVICES BECOME EASIER TO USE THOUGH
35. HEAVY TECH LIFTING IS DONE BY SERVICE PROVIDER
36. OUR JOB IS TO GLUE IT TOGETHER
37. SKILLS WE NEED TO GLUE IT TOGETHER
38. SKILLS WE NEED TO BE CAPABLE OF ▸ Insight ▸ Resource Management ▸ Authorisation ▸ Monitoring ▸ Operations
39. HOW FAST CAN YOU LEARN STUFF ABOUT YOUR DEPLOYED RESOURCES INSIGHT
40. INSIGHT >3 Seconds is a Problem
41. CREATING AND UPDATING RESOURCES IN SERVICES IN THE CLOUD RESOURCE MANAGEMENT
42. RESOURCE MANAGEMENT ▸ Automation ▸ Automation ▸ Automation ▸ Automation ▸ Automation ▸ And Yes, Automation
43. IT'S AUTOMATED, THEREFORE IT IS!
44. LEAST PRIVILEGE IS CORRECT PRIVILEGE AUTHORISATION
45. IAM REALLY ISN’T THAT COMPLEX
46. WTF IS GOING ON HERE? MONITORING
47. HOW DO I FIX THIS? OPERATIONS
48. WHAT DO I NEED TO LEARN ON AWS?
49. AWS CORE SERVICES AND TOOLS ▸ AWS CLI ▸ CloudFormation ▸ IAM ▸ CloudWatch
50. INSIGHT AWS CLI
51. AUTOMATION CLOUDFORMATION
52. AUTHORISATION IAM
53. MONITORING AND OPERATIONS CLOUDWATCH
54. THE CLOUD IS STANDARDISED, SO CUSTOMISE YOUR TOOLS
55. BASIC SHELL TOOLING ▸ Make ▸ xargs ▸ JQ ▸ Sed ▸ AWK
56. WHY CAN’T I LEAVE THIS TO SOME SMART TOOL?
57. NEW FEATURES COME IN ALL THE TIME AND WE HAVE TO DEAL WITH IT
58. DOESN’T MEAN YOU CAN’T USE HIGH LEVEL TOOLS
59. TOOLING IS MORE POWERFUL THAN EVER
60. SO WHERE DO I START TO LEARN THIS?
61. AWS DOCUMENTATION ISN’T AS COMPLEX AS IT SEEMS
62. THESERVERLESSWAY.COM
63. GUIDES ▸ Serverless ▸ AWSCli ▸ CloudFormation ▸ IAM ▸ More to come…
64. THE SERVERLESS WAY TOOL SUITE ▸ Formica - CloudFormation client ▸ AWSInfo - The AWS Console in your terminal ▸ AWSIE - CloudFormation aware AWS CLI Wrapper ▸ Former - The easiest way to get CloudFormation Resource definitions ▸ More to come…
65. CONCLUSIONS ▸ Learn the AWS Core Services and Tools ▸ Custom tools for standard infrastructure components ▸ Think about your own productivity as a Serverless developer ▸ Don’t build crap ▸ Check out theserverlessway.com ▸ Join the Serverless-Forum on Slack (https://wt-serverless- seattle.run.webtask.io/serverless-forum-signup?webtask_no_cache=1)
66. THANK YOU Florian Motlik Questions? AWS/Serverless/Development Process Consultant
 Need help in your infrastructure: flo@theserverlessway.com T W I T T E R : @ F L O M O T L I K W E B S I T E : T H E S E R V E R L E S S WAY. C O M E M A I L : F L O @ T H E S E R V E R L E S S WAY. C O M
67. FURTHER READING ‣ https://martinfowler.com/bliki/CraftmanshipAndTheCrevasse.html ‣ http://blog.cleancoder.com/uncle-bob/2011/01/17/software-craftsmanship-is- about.html ‣ https://dannorth.net/2011/01/11/programming-is-not-a-craft/ ‣ http://blog.gdinwiddie.com/2011/01/17/trades-crafts-and-certification/