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Lambda Image Resizing

6b6afbaea3bf1de98975dedc5cd083c1?s=47 stevenjackson
April 21, 2016
Programming
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52

Lambda Image Resizing

Lunch and Learn - April 2016

6b6afbaea3bf1de98975dedc5cd083c1?s=128

stevenjackson

April 21, 2016
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Transcript

  1. WE DON’T NEED NO STINKING SERVERS IMAGE RESIZING WITH AWS

    LAMBDA

  2. The Problem: For the last 6 years, users have been

    able to upload any image they like for use in a VizZle lesson 10144 × 8054 pixels 32.6 MB 980 DPI minutes to download

  3. And the app would never show it at that resolution!

    Max Page Size: 1920 x 1080 414x329 915x686 944x708

  4. Or the old app Flash “Card” Size: 520 x 390

  5. The Solution: Batch convert all the images! Max Image Size

    960x540 680x540 $ convert 1416855261.78270 -size x540

  6. “How many images are there anyway?” –Hey Blinken

  7. None
  8. None
  9. None

  10. “Are you going to download every one from the internet?”

    –Al Gore
  11. None
  12. None

  13. “What are we going to do with new uploads?” –Johnny

    Five
  14. None
  15. None

  16. “Who is going to maintain that EC2 instance?” –Jeff Bezos

  17. None
  18. None
  19. None
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  25. Or any binary compiled on Amazon Linux!

  26. None
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  28. None
  29. None
  30. None
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  33. Read/Write S3 Role Type: AWS Lambda Attach Policy: AWSLambdaExecute

  34. None
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  36. Lambda Interface

  37. None
  38. None

  39. Deployment

  40. Configuration

  41. Testing

  42. Testing

  43. Testing

  44. Image Resizing Gotchas Maintain Aspect Ratios Lossy vs Lossless Lossy

    vs Headless Lambda Inception ACLs

  45. Image Resizing Gotchas Maintain Aspect Ratios Lossy vs Lossless Lossy

    vs Headless Lambda Inception ACLs

  46. Lambda Gotchas Function runtime is limited to 5 minutes Maximum

    of 1.5GB memory Debugging involves waiting for CloudWatch logs to show up

  47. “What else can we do with it?” –Jeff Bezos

  48. None
  49. None
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