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Serverless PHP Sebastian Grodzicki @ SymfonyLive Warszawa 2019 !@sebgrodzicki

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phpinfo() Sebastian Grodzicki
 • Team Lead at • PHP developer for 15+ years • #serverless !@sebgrodzicki

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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.

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Serverless replaces the traditional approaches to running applications.

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Platform options Physical servers Virtual machines Containers Platform Serverless Abstraction Control

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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).

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

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Data center evolution DC

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Data center evolution DC VM VM VM VM VM VM VM VM VM VM VM VM

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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

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Data center evolution 
 DNS 
 CDN

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Data center evolution PaaS IaaS SaaS

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Function as a Service (FaaS)

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FaaS AWS Lambda Microsoft Azure Functions Google Cloud Functions

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Bref

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$ composer require bref/bref CLI

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

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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

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

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$ composer require bref/bref $ vendor/bin/bref init $ aws s3 mb s3://symfonylive $ sam package \
 --output-template-file .stack.yaml \
 --s3-bucket symfonylive CLI

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$ 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

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$ 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

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$ 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

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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

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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

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

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

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Runtime

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PrettyCI

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PrettyCI

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PrettyCI

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Questions?

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Thank you!