Serverless PHP @ SymfonyLive Warszawa 2019

#serverless nie był do tej pory gorącym tematem w świecie PHP, ponieważ żaden z dostawców usług chmurowych nie wspiera natywnie PHP w środowisku tego typu. Pod koniec zeszłego roku AWS udostępniło dwie nowe usługi (Lambda Runtime API oraz Lambda Layers), które pozwalają na samodzielne dodanie PHP do środowiska typu #serveless. Podczas prezentacji omówię poszczególne elementy takiej architektury oraz pokażę kod PHP działąjacy na AWS Lambda.

Transcript

1. Serverless PHP
   Sebastian Grodzicki @ SymfonyLive Warszawa 2019
   !@sebgrodzicki
   

   View Slide

2. phpinfo()
   Sebastian Grodzicki

   • Team Lead at
   • PHP developer for 15+ years
   • #serverless
   !@sebgrodzicki
   

   View Slide

3. Serverless
   • storage as a service (e.g. Amazon S3),
   • database as a service (e.g. Amazon Aurora),
   • message queue as a service (e.g. Amazon SQS),
   • etc.
   

   View Slide

4. Serverless replaces the traditional
   approaches to running applications.
   

   View Slide

5. Platform options
   Physical servers
   Virtual machines
   Containers
   Platform
   Serverless
   Abstraction Control
   

   View Slide

6. Why serverless?
   • We don't manage, update, configure, provision servers or
   containers,
   • We don't reserve or scale servers or containers, instead
   they are scaled automatically and transparently for us,
   • We don't pay for fixed resources, instead we pay for what
   we actually use (e.g. execution time).
   

   View Slide

7. Serverless can provide more scalable, affordable
   and reliable architectures for less effort.
   

   View Slide

8. Data center evolution
   DC
   

   View Slide

9. Data center evolution
   DC
   VM VM
   VM
   VM
   VM VM
   VM
   VM
   VM VM
   VM
   VM
   

   View Slide

10. Data center evolution
    DC
    VM
    C C
    C C
    C C
    VM
    C C
    C C
    C C
    VM
    C C
    C C
    C C
    VM
    C C
    C C
    C C
    VM
    C C
    C C
    C C
    VM
    C C
    C C
    C C
    VM
    C C
    C C
    C C
    VM
    C C
    C C
    C C
    VM
    C C
    C C
    C C
    VM
    C C
    C C
    C C
    VM
    C C
    C C
    C C
    VM
    C C
    C C
    C C
    

    View Slide

11. Data center evolution
    

    DNS
    

    CDN
    

    View Slide

12. Data center evolution
    PaaS
    IaaS SaaS
    

    View Slide

13. Function as a Service (FaaS)
    

    View Slide

14. FaaS
    AWS Lambda
    Microsoft Azure Functions Google Cloud Functions
    

    View Slide

15. Bref
    

    View Slide

16. $ composer require bref/bref
    CLI
    

    View Slide

17. $ composer require bref/bref
    $ vendor/bin/bref init
    CLI
    

    View Slide

18. 

    require __DIR__.'/vendor/autoload.php';

    

    lambda(function (array $event) {

    return 'Hello ' . ($event['name'] ?? 'world');

    });
    index.php
    

    View Slide

19. AWSTemplateFormatVersion: '2010-09-09'

    Transform: AWS::Serverless-2016-10-31

    Description: ''

    

    Resources:

    MyFunction:

    Type: AWS::Serverless::Function

    Properties:

    FunctionName: 'my-function'

    Description: ''

    CodeUri: .

    Handler: index.php

    Timeout: 10

    MemorySize: 1024

    Runtime: provided

    Layers:

    - 'arn:aws:lambda:eu-
    central-1:209497400698:layer:php-73:6'
    template.yaml
    

    View Slide

20. View Slide

21. $ composer require bref/bref
    $ vendor/bin/bref init
    $ aws s3 mb s3://symfonylive
    CLI
    

    View Slide

22. $ composer require bref/bref
    $ vendor/bin/bref init
    $ aws s3 mb s3://symfonylive
    $ sam package \

    --output-template-file .stack.yaml \

    --s3-bucket symfonylive
    CLI
    

    View Slide

23. $ composer require bref/bref
    $ vendor/bin/bref init
    $ aws s3 mb s3://symfonylive
    $ sam package \

    --output-template-file .stack.yaml \

    --s3-bucket symfonylive
    $ sam deploy \

    --template-file .stack.yaml \

    --capabilities CAPABILITY_IAM \

    --stack-name SymfonyLive
    CLI
    

    View Slide

24. View Slide

25. View Slide

26. $ vendor/bin/bref invoke my-function

    

    START RequestId: 745a76df-fddc-4cb4-b826-e169d43c67d3
    Version: $LATEST

    

    END RequestId: 745a76df-fddc-4cb4-b826-e169d43c67d3

    

    REPORT RequestId: 745a76df-fddc-4cb4-b826-e169d43c67d3
    Duration: 13.65 ms Billed Duration: 100 ms Memory
    Size: 1024 MB Max Memory Used: 63 MB 

    

    "Hello world"
    CLI
    

    View Slide

27. 

    require __DIR__.'/vendor/autoload.php';

    

    lambda(function (array $event) {

    return 'Hello ' . ($event['name'] ?? 'world');

    });
    index.php
    

    View Slide

28. $ vendor/bin/bref invoke my-function --event
    '{"name":"SymfonyLive"}'

    

    START RequestId: e44bd988-16aa-4a36-abf1-3924acfb7d42
    Version: $LATEST

    

    END RequestId: e44bd988-16aa-4a36-abf1-3924acfb7d42

    

    REPORT RequestId: e44bd988-16aa-4a36-abf1-3924acfb7d42
    Duration: 13.27 ms Billed Duration: 100 ms Memory
    Size: 1024 MB Max Memory Used: 63 MB 

    

    "Hello SymfonyLive"
    CLI
    

    View Slide

29. View Slide

30. View Slide

31. Benchmarks: Cold starts
    128 512 1024 2048
    PHP function 600 ms 280 ms 225 ms 215 ms
    HTTP
    application
    500 ms 270 ms 270 ms 215 ms
    Symfony 5.6 s 1.7 s 850 ms 550 ms
    

    View Slide

32. Benchmarks: Average (warm) execution time
    128 512 1024 2048
    PHP function 130 ms 32 ms 20 ms 17 ms
    HTTP
    application
    13 ms 5 ms 3 ms 2 ms
    Symfony 56 ms 12 ms 6 ms 5 ms
    

    View Slide

33. Benchmarks: CPU performance
    128 512 1024 2048
    bench.php 6 s 1.8 s 0.8 s 0.4 s
    

    View Slide

34. Simplicity Performances Reliability
    Jobs, Cron ⬤ ⬤ ⬤
    API ⬤ ⬤ ⬤
    API with MySQL /
    PostgreSQL
    ⬤ ⬤ ⬤
    Website ⬤ ⬤ ⬤
    Website with MySQL /
    PostgreSQL
    ⬤ ⬤ ⬤
    Legacy application ⬤ ⬤ ⬤
    

    View Slide

35. Runtime
    

    View Slide

36. PrettyCI
    

    View Slide

37. PrettyCI
    

    View Slide

38. PrettyCI
    

    View Slide

39. Questions?
    

    View Slide

40. Thank you!
    

    View Slide