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2 changes: 1 addition & 1 deletion .github/workflows/makefile.yml
Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,7 @@ jobs:
- name: Setup Nodejs
uses: actions/setup-node@v3
with:
node-version: 12
node-version: 14

# see https://github.com/localstack/localstack/pull/6831
# remove once no longer needed
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4 changes: 2 additions & 2 deletions README.md
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Expand Up @@ -54,8 +54,8 @@ Some of the samples require LocalStack Pro features. Please make sure to properl
| [Glue for ETL jobs](glue-etl-jobs) | Using Glue API to run local ETL jobs |
| [Message Queue broker](mq-broker) | Using MQ API to run local message queue brokers |
| [ELB Load Balancing](elb-load-balancing) | Using ELBv2 Application Load Balancers locally, deployed via the Serverless framework |
| [Reproducible ML](reproducible-ml) | Train, save and evaluate a scikit-learn machine learning model using AWS Lambda and S3 |

| [Reproducible ML](reproducible-ml) | Train, save and evaluate a scikit-learn machine learning model using AWS Lambda and S3 |
| [Lambda PHP/Bref CDK App](lambda-php-bref-cdk-app) | Running PHP/Bref Lambda handler locally, deployed via AWS CDK |

## Checking out a single sample

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12 changes: 12 additions & 0 deletions lambda-php-bref-cdk-app/.gitignore
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*.js
!jest.config.js
*.d.ts
node_modules

# CDK asset staging directory
.cdk.staging
cdk.out
cdk-outputs.json

# PHP vendor
backend/vendor
6 changes: 6 additions & 0 deletions lambda-php-bref-cdk-app/.npmignore
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*.ts
!*.d.ts

# CDK asset staging directory
.cdk.staging
cdk.out
57 changes: 57 additions & 0 deletions lambda-php-bref-cdk-app/Makefile
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export AWS_ACCESS_KEY_ID ?= test
export AWS_SECRET_ACCESS_KEY ?= test
export AWS_DEFAULT_REGION ?= us-east-1

# Using composer Docker image to avoid local PHP dependency:
# https://hub.docker.com/_/composer
DOCKER_COMPOSER_IMAGE ?= composer:2.5

usage: ## Show this help
@fgrep -h "##" $(MAKEFILE_LIST) | fgrep -v fgrep | sed -e 's/\\$$//' | sed -e 's/##//'

install: ## Install dependencies
@npm install
@which cdklocal || npm install -g aws-cdk-local aws-cdk
@which localstack || pip install localstack
echo "Install Bref PHP dependencies via composer"
make install-bref-docker

install-bref:
cd backend && \
composer install

install-bref-docker: ## Install Bref dependencies via composer into backend/vendor
cd backend && \
docker run --rm --volume $$PWD:/app --user $$(id -u):$$(id -g) $(DOCKER_COMPOSER_IMAGE) composer install

run: ## Deploy the app locally and invoke Lambda through API gateway
echo "Bootstrapping CDK"; \
cdklocal bootstrap && \
echo "Deploying CDK app to local environment"; \
cdklocal deploy --outputs-file cdk-outputs.json --require-approval never && \
echo "CDK app successfully deployed. Now trying to invoke the Lambda through API gateway." && \
make invoke

invoke:
endpoint=$$(jq .CdkBrefStack.Url cdk-outputs.json --raw-output) && \
echo endpoint=$${endpoint} && \
curl $${endpoint}?name=LocalStack!

start:
PROVIDER_OVERRIDE_lambda=v2 localstack start -d

stop:
@echo
localstack stop
ready:
@echo Waiting on the LocalStack container...
@localstack wait -t 30 && echo Localstack is ready to use! || (echo Gave up waiting on LocalStack, exiting. && exit 1)

logs:
@localstack logs > logs.txt

test-ci:
make start install ready run; return_code=`echo $$?`;\
make logs; make stop; exit $$return_code;

.PHONY: usage install install-bref install-bref-docker start run invoke stop ready logs test-ci
103 changes: 103 additions & 0 deletions lambda-php-bref-cdk-app/README.md
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# LocalStack Demo: Deploying PHP/Bref Lambda via CDK

Simple [PHP/Bref](https://bref.sh/) serverless application using a shared Lambda layer deployable with AWS CDK to LocalStack.

This PHP/Bref application **without fpm** implements a [typed PHP Lambda handler](https://bref.sh/docs/function/handlers.html) as an *HTTP handler class* for serving [API Gateway HTTP events](https://bref.sh/docs/function/handlers.html#api-gateway-http-events).
Bref turns an API Gateway event into a [PSR-7](https://www.php-fig.org/psr/psr-7/)request and one Lambda per route implements a handler class and returns a PSR-7 response.

## PHP/Bref with fpm and Serverless

Bref typically runs [Web applications on AWS Lambda](https://bref.sh/docs/runtimes/http.html) to support traditional PHP frameworks such as Laravel and Symphony.
In this `php-fpm` approach, Bref turns an API Gateway event into a FastCGI (PHP-FPM) request and one Lambda receives all URLs and responds using `echo`, `header()` function, etc.
Checkout the different kinds of applications at [php-runtime/bref](https://github.com/php-runtime/bref) and select the correct layer with or without `fpm` accordingly.

To deploy the `php-fpm` Laravel [base](https://github.com/brefphp/examples/tree/master/Laravel/base) project from [brefphp/examples](https://github.com/brefphp/examples) to LocalStack:

1. Install the [serverless-localstack](https://github.com/LocalStack/serverless-localstack) plugin

```bash
npm install --save-dev serverless-localstack
```

2. Add serverless-localstack to `plugins` in the [serverless.yml](https://github.com/brefphp/examples/blob/master/Laravel/base/serverless.yml)

```yml
plugins:
- ./vendor/bref/bref
- serverless-localstack
```

3. Add `custom` properties in the `serverless.yml`

```yml
custom:
localstack:
# list of stages for which the plugin should be enabled
stages:
- local
```

4. Deploy to LocalStack

```bash
serverless deploy --stage local
```

Start localstack with:

* `LAMBDA_DOCKER_FLAGS=--user nobody` until [this user permission issue](https://github.com/localstack/localstack/issues/7722) is resolved for running `fpm`.
* `PROVIDER_OVERRIDE_LAMBDA=v2` until the [new Lambda provider implementation](https://github.com/localstack/localstack/pull/6724) becomes the default in LocalStack Version 2.

## Prerequisites

* LocalStack
* Docker
* `make`
* `curl`
* `jq`
* Node.js / `npm`
* [`cdklocal`](https://github.com/localstack/aws-cdk-local)

## Installing

To install the dependencies:
```
make install
```

## Starting LocalStack

Make sure that LocalStack is started:
```
LOCALSTACK_API_KEY=... PROVIDER_OVERRIDE_LAMBDA=v2 LAMBDA_DOCKER_FLAGS="--user nobody" DEBUG=1 localstack start
```

## Running

Deploy the app locally and run an HTTP test invocation:
```bash
make run
```

The script first bootstraps and deploys the CDK app locally and subsequently invokes the HTTP endpoint via curl (`make invoke`).

```
Outputs:
CdkBrefStack.Url = https://bd0f6b19.execute-api.localhost.localstack.cloud:4566/
Stack ARN:
arn:aws:cloudformation:us-east-1:000000000000:stack/CdkBrefStack/dec480c5

✨ Total time: 7.9s


CDK app successfully deployed. Now trying to invoke the Lambda through API gateway.
endpoint=$(jq .CdkBrefStack.Url cdk-outputs.json --raw-output) && \
echo endpoint=${endpoint} && \
curl ${endpoint}?name=LocalStack!
endpoint=https://bd0f6b19.execute-api.localhost.localstack.cloud:4566/
Hello LocalStack!%
```

## License

This code is available under the Apache 2.0 license.
7 changes: 7 additions & 0 deletions lambda-php-bref-cdk-app/backend/composer.json
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{
"name": "localstack/bref-hello-world",
"type": "project",
"require": {
"bref/bref": "^1.7.16"
}
}
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