The document discusses serverless computing and how to run PHP applications on AWS Lambda. It introduces serverless concepts and key AWS Lambda services. It then demonstrates how to deploy a PHP application to AWS Lambda using the Bref framework, which compiles PHP into a Lambda layer. Examples are provided for simple PHP Lambda functions and for deploying a Symfony app. The document shows how to package and deploy the PHP code to Lambda using the AWS Serverless Application Model (SAM).

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PHP as a Service
Serverless PHP applications

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gitlab.com/pvgomes
Paulo Victor Gomes - pvgomes
Tech Lead at Z-Tech - AB
Inbev/AmBev
@_pvgomes
former CTO at Mundo Verde and Natue, former software
engineering at Dafiti, Kanui, Tricae and Rocket Internet
github.com/pvgomes
pvgomes

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What is Serverless?
Serverless Computing still uses servers, but
you no longer have to worry about managing
them

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Key Features and Benefits

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Key Features and Benefits
● No Server Management

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Key Features and Benefits
● No Server Management
● Easy & Efficient Scaling

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Key Features and Benefits
● No Server Management
● Easy & Efficient Scaling
● Built in High Availability and Fault Tolerance

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Key Features and Benefits
● No Server Management
● Easy & Efficient Scaling
● Built in High Availability and Fault Tolerance
● Service Integration

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Key Features and Benefits
● No Server Management
● Easy & Efficient Scaling
● Built in High Availability and Fault Tolerance
● Service Integration
● Pay as you Go

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How Serverless Works?

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Serverless Infrastructure Providers

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The Major players
google trends

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Some Serverless Services in AWS

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AWS Lambda Hello World

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AWS Lambda Hello World

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AWS Lambda Hello World

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A simples AWS Lambda - Example
https://github.com/pvgomes/slack-lambda

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A simples AWS Lambda - Code

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A simples AWS Lambda - Code

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A simples AWS Lambda - Example
/natuelabs wiki

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A simples AWS Lambda - Code
class Wiki(Command):
def execute(self, argument):
try:
scopes = ["https://www.googleapis.com/auth/drive",...]
secret_file = os.path.join(parent_dir, '../client.json')
credentials = Credentials.from_service_account_file(secret_file, scopes=scopes)
service = discovery.build('sheets', 'v4', credentials=credentials)
range_name = "wiki!B2:B40"
request = service.spreadsheets().values().get(spreadsheetId=id, range=range_name)
response = request.execute()
wiki = ""
values = response.get('values')
for value in values:
wiki = wiki + ''.join(value) + "n"
return wiki
except OSError as e:
return str(e)

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A simples AWS Lambda - Example

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A simples AWS Lambda - “Deploy”
Package the code
Upload with aws cli

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Serverless Frameworks
https://serverless.com
AWS Serverless Application Model
https://aws.amazon.com/serverless/sam

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Serverless + AWS Lambda

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Serverless + AWS Lambda

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Serverless + AWS Lambda

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What about PHP ?

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PHP as a Service
1 request = 1 process

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PHP as a Service
PHP is faas-ready

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What about AWS Lambda and PHP?

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AWS lambda does not support PHP

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NodeJS PHP Handler

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Is that ok for you?

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AWS Lambda Layers

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Compile the desired version of PHP

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Compile the desired version of PHP

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Compile the desired version of PHP

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Compile the desired version of PHP

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Upload your layer

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Upload your layer

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Create your functions
Install using composer
Init a sample function
<?php
function handler($event)
{
return "Hello, {$event['name']}!";
}

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Create AWS S3 deployment bucket
aws s3 mb s3://phptdc

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Package artifacts
sam package
--template-file template.yaml
--output-template-file serverless-output.yaml
--s3-bucket phptdc

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Deploy package
sam deploy
--template-file serverless-output.yaml
--stack-name my-first-php-lambda-layer
--capabilities CAPABILITY_IAM

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What?

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PHP community never sleeps

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Bref.sh

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Bref Installation
Install using composer
Init a sample function
Install Bref
composer require bref/bref:0.4.1
Init a sample function
vendor/bin/bref init

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Bref Sample

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Bref Sample

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template.yaml
AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: ''
Resources:
TdcFunction:
Type: AWS::Serverless::Function
Properties:
FunctionName: 'tdc-function'
Description: ''
CodeUri: .
Handler: index.php
Timeout: 30 # in seconds (API Gateway has a timeout of 30 seconds)
MemorySize: 1024 # The memory size is related to the pricing and CPU power
Runtime: provided
Layers:
- 'arn:aws:lambda:us-east-1:209497400698:layer:php-73-fpm:7'

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template.yaml - events
...
Events:
# The function will match all HTTP URLs
HttpRoot:
Type: Api
Properties:
Path: /
Method: ANY
HttpSubPaths:
Type: Api
Properties:
Path: /{proxy+}
Method: ANY

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index.php
<?php
$date = date('d/m/Y H:i:s');
$title = <<<EOT
<h1>PHP as a Service</h1>
<p> TDC 2019 %s </p>
<img src="https://s3-sa-east-
1.amazonaws.com/thedevconf/2019/img/divulgacao/saopaulo/banner-
TDC2019-sao-paulo-180x150.png">
EOT;
echo sprintf($title, $date);

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Lambda run locally
sam local start-api

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Lambda run locally

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SAM uses docker to simulate Lambda
Before/After request
During request

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SAM uses docker to simulate Lambda

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Bref deployment - package artifacts
sam package
--template-file template.yaml
--output-template-file serverless-output.yaml
--s3-bucket phptdc

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Bref deployment - deploy package
sam deploy
--template-file serverless-output.yaml
--stack-name tdc-functions
--capabilities CAPABILITY_IAM

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Our lambda is deployed

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AWS cli - stack information
aws cloudformation
describe-stacks --stack-name tdc-functions

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AWS cli - stack information
{
"Stacks": [
{
"StackName": "tdc-functions",
…..
"Outputs": [
{ "OutputValue":"https://z6lppb8vl9.execute-api.us-east-
1.amazonaws.com/Prod/",
}
]}
]
}

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API Gateway URL / test me
https://z6lppb8vl9.execute-api.us-east-1.amazonaws.com/Prod/

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Bref with Symfony
https://bref.sh/docs/frameworks/symfony.html

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Create from scratch
Create path
mkdir symfony-serverless
Install symfony
composer create-project symfony/website-skeleton symfony-serverless
Start server
symfony-serverless/bin/console server:start

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Create from scratch

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First page - Lucky Number
Create Lucky controller (src/Controller/LuckyController.php)
<?php
namespace AppController;
use SymfonyComponentRoutingAnnotationRoute;
use SymfonyBundleFrameworkBundleControllerAbstractController;
class LuckyController extends AbstractController
{
/**
* @Route("/")
*/
public function number()
{
$number = random_int(0, 100);
return $this->render('lucky/number.html.twig', [
'number' => $number,
]);
}
}

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Again - Built in

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Setup Bref
Install bref into project
composer required bref/bref:0.4.1
Create lambda template
template.yaml
Content
https://gist.github.com/pvgomes/59632c00d3216fd78769492d6f82e130

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Change log path into src/Kernel.php
...
public function getLogDir()
{
if (getenv('LAMBDA_TASK_ROOT') !== false) {
return '/tmp/log/';
}
return $this->getProjectDir().'/var/log';
}
public function getCacheDir()
{
if (getenv('LAMBDA_TASK_ROOT') !== false) {
return '/tmp/cache/'.$this->environment;
}
return $this->getProjectDir().'/var/cache/'.$this->environment;
}

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Run it locally with SAM

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Bref deployment - package artifacts
sam package
--template-file template.yaml
--output-template-file serverless-output.yaml
--s3-bucket phptdc

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Bref deployment - deploy package
sam deploy
--template-file serverless-output.yaml
--stack-name symfony-serverless
--capabilities CAPABILITY_IAM

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Done / test me
https://j0znkm50u0.execute-api.us-east-1.amazonaws.com/Prod/

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Bref new features - 0.5.0
Bref now recommends Serverless instead of SAM
Changes: https://github.com/brefphp/bref/releases/tag/0.5.0

77. Thank you!
@_pvgomes
pvgomes.com/videos