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giuseppe-trisciuoglio/developer-kit

Comprehensive developer toolkit providing reusable skills for Java/Spring Boot, TypeScript/NestJS/React/Next.js, Python, PHP, AWS CloudFormation, AI/RAG, DevOps, and more.

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bref-lambda.mdplugins/developer-kit-php/skills/aws-lambda-php-integration/references/

Bref Lambda Reference

Complete guide for deploying PHP applications on AWS Lambda using the Bref framework.

Table of Contents

  1. Project Setup
  2. Handler Implementation
  3. Symfony Integration
  4. Cold Start Optimization
  5. Configuration
  6. Deployment

Project Setup

Composer Configuration

{
    "name": "my/symfony-lambda",
    "description": "Symfony on AWS Lambda",
    "require": {
        "php": "^8.2",
        "bref/bref": "^2.0",
        "bref/symfony-bridge": "^1.0",
        "symfony/framework-bundle": "^6.0",
        "symfony/yaml": "^6.0",
        "symfony/dotenv": "^6.0"
    },
    "require-dev": {
        "phpunit/phpunit": "^10.0"
    },
    "autoload": {
        "psr-4": {
            "App\\": "src/"
        }
    },
    "config": {
        "optimize-autoloader": true,
        "preferred-install": "dist",
        "allow-plugins": {
            "php-http/discovery": true
        }
    }
}

Serverless Configuration

# serverless.yml
service: symfony-lambda

provider:
  name: aws
  runtime: php-82
  memorySize: 512
  timeout: 20
  region: us-east-1

plugins:
  - ./vendor/bref/bref

functions:
  api:
    handler: public/index.php
    description: Symfony Lambda
    events:
      - httpApi: '*'

package:
  exclude:
    - node_modules/**
    - .git/**
    - tests/**

Handler Implementation

Basic Lambda Handler

// public/index.php
use Bref\Bref;
use Bref\Context\Context;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;

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

Bref::initialize();

$app = require __DIR__.'/../config/bootstrap.php';

$handler = function ($event, Context $context) use ($app) {
    $request = Request::createFromGlobals();

    $response = $app->handle($request);

    return [
        'statusCode' => $response->getStatusCode(),
        'headers' => $response->headers->all(),
        'body' => $response->getContent()
    ];
};

return $handler;

Symfony 6.x Integration

// public/index.php
use Bref\Symfony\Bref;
use App\Kernel;
use Symfony\Component\HttpFoundation\Request;

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

$kernel = new Kernel($_SERVER['APP_ENV'] ?? 'dev', $_SERVER['APP_DEBUG'] ?? true);
$ Bref = new Bref($kernel);

// Run the application
return $bref->getAwsHandler();

Console Commands

// bin/console
#!/usr/bin/env php
<?php

use App\Kernel;
use Symfony\Bundle\FrameworkBundle\Console\Application;

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

$kernel = new Kernel($_SERVER['APP_ENV'] ?? 'dev', true);
$application = new Application($kernel);
$application->run();
# serverless.yml - console function
functions:
  console:
    handler: bin/console
    timeout: 120
    events:
      - schedule: rate(1 hour)

Symfony Integration

Kernel Configuration

// src/Kernel.php
<?php

namespace App;

use Symfony\Bundle\FrameworkBundle\Kernel\MicroKernelTrait;
use Symfony\Component\Config\Loader\LoaderInterface;
use Symfony\Component\Config\Resource\FileResource;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\HttpKernel\Kernel as BaseKernel;
use Symfony\Component\Yaml\Yaml;

class Kernel extends BaseKernel
{
    use MicroKernelTrait;

    private const CONFIG_EXTS = '.{php,yaml,yml}';

    public function registerBundles(): iterable
    {
        $contents = require $this->getProjectDir().'/config/bundles.php';
        foreach ($contents as $class => $envs) {
            if ($envs[$this->environment] ?? $envs['all'] ?? false) {
                yield new $class();
            }
        }
    }

    public function getProjectDir(): string
    {
        return dirname(__DIR__);
    }

    protected function configureContainer(ContainerBuilder $container, LoaderInterface $loader): void
    {
        $container->addResource(new FileResource($this->getProjectDir().'/config/bundles.php'));
        $container->setParameter('container.dumper.inline_class_loader', true);

        $loader->load($this->getProjectDir().'/config/services.yaml');
    }

    protected function configureRoutes(RoutingConfigurator $routes): void
    {
        $routes->import('../config/routes.yaml');
    }
}

Services Configuration

# config/services.yaml
parameters:
    env(DATABASE_URL): ''
    env(AWS_REGION): 'us-east-1'

services:
    _defaults:
        autowire: true
        autoconfigure: true
        bind:
            $region: '%env(AWS_REGION)%'

    App\:
        resource: '../src/'
        exclude: '../src/{Entity,Repository}'

    App\Service\AwsService:
        arguments:
            $region: '%env(AWS_REGION)%'

Routes Configuration

# config/routes.yaml
app_home:
    path: /
    controller: App\Controller\HomeController::index

app_api_users:
    resource: '../src/Controller/UserController.php'
    type: annotation

Cold Start Optimization

Disable Unused Features

# config/packages/prod/framework.yaml
framework:
    validation: false
    annotations: false
    serializer: false
    profiler: false

services:
    App\Service\HeavyService: '@App\Service\LazyHeavyService'

Lazy Services

# config/services.yaml
services:
    App\Service\LazyReportService:
        class: App\Service\ReportService
        lazy: true

Optimize Composer Autoload

{
    "autoload": {
        "classmap": ["src/"],
        "psr-4": {
            "App\\": "src/"
        }
    },
    "config": {
        "optimize-autoloader": true
    }
}

Minimal Bundles

// config/bundles.php
return [
    // Keep only essential bundles
    Symfony\Bundle\FrameworkBundle\FrameworkBundle::class => ['all' => true],
    Symfony\Bundle\MonologBundle\MonologBundle::class => ['all' => true],
];

Configuration

Environment Variables

# serverless.yml
provider:
  environment:
    APP_ENV: ${self:custom.stage}
    DATABASE_URL: ${ssm:/my-app/database-url}
    AWS_REGION: ${self:provider.region}

IAM Permissions

provider:
  iam:
    role:
      statements:
        - Effect: Allow
          Action:
            - dynamodb:GetItem
            - dynamodb:PutItem
            - dynamodb:Query
            - dynamodb:Scan
          Resource: 'arn:aws:dynamodb:${self:provider.region}:*:table/users'

        - Effect: Allow
          Action:
            - s3:GetObject
            - s3:PutObject
          Resource: 'arn:aws:s3:::my-bucket/*'

VPC Configuration

functions:
  api:
    vpc:
      securityGroupIds:
        - !GetAtt LambdaSecurityGroup.GroupId
      subnetIds:
        - !Ref PrivateSubnet1
        - !Ref PrivateSubnet2

Deployment

Deploy Commands

# Install dependencies
composer install --no-dev --optimize-autoloader

# Deploy to dev
vendor/bin/bref deploy --stage dev

# Deploy to production
vendor/bin/bref deploy --stage prod

Stages Configuration

# serverless.yml
custom:
  stage: ${opt:stage, 'dev'}

  dev:
    domain: dev-api.example.com
    provisioned: 0

  prod:
    domain: api.example.com
    provisioned: 5

functions:
  api:
    handler: public/index.php
    environment:
      STAGE: ${self:custom.stage}

Provisioned Concurrency

functions:
  api:
    handler: public/index.php
    provisionedConcurrency: ${self:custom.${self:custom.stage}.provisioned}
    reservedConcurrency: 10

Performance Tuning

Memory Allocation

provider:
  memorySize: 1024  # More memory = more CPU

functions:
  api:
    memorySize: 1024
    timeout: 30

PHP Configuration

provider:
  environment:
    PHP_INI_SCAN_DIR: /var/task/conf.d
; conf.d/lambda.ini
memory_limit = 512M
max_execution_time = 30

Testing

See testing-lambda.md for comprehensive testing patterns.

Local Development

# Start local server
composer require bref/local-server --dev

php -S localhost:8000 -t public/

Troubleshooting

Common Issues

  1. Cold start too slow: Disable unused Symfony features
  2. Memory limit exceeded: Increase memory or optimize dependencies
  3. Timeout errors: Increase timeout or optimize database queries
  4. Class not found: Run composer dump-autoload --optimize

plugins

developer-kit-php

skills

aws-lambda-php-integration

references

bref-lambda.md

raw-php-lambda.md

serverless-deployment.md

testing-lambda.md

SKILL.md

README.md

tile.json