ajays1991 / aws-lambda-serverless-framework

AWS Lambda with serverless framework

This code in this repository is explained in this Medium Article and this blog post.

• This repository contains examples of AWS lambda function attached to S3, API Gateway, SNS topic.
• The code uses Serverless Framework to deploy the lambda functions and managing the infrastructure.
• The code use serverless-secrets-plugin to manage code configuration and secrets.

Installation

• Install docker on your machine. You can follow the steps mentioned in this official docker installation link.

• Next we need to install serverless framework. It requires nodejs already installed on your machine as serverless framework is written in nodejs. To install nodejs on your machine follow this nodejs installation guide by digital ocean.

• Once both nodejs and NPM are installed, we can install serverless framework by running the following command.

  npm install -g serverless

• Then setup your AWS credentials for serverless framework to access your AWS, follow this official setup by serverless.

Deploying the code

• The repository contains three folder with each for S3, API Gateway and SNS topic.

• Change your working directory to any one of them and install the following plugins required by serverless. (Note: you must have a secret.live.yml which contains all the secrets and configurations used in the code.)

  sls plugin install -n serverless-python-requirements

  npm install serverless-secrets-plugin

• Since the examples are written in python you will need virtual environment for python and i preferably use venv. Link to setup venv on your machine.

• create your virtual environment using the following command and activate it using next command.

  python3 -m venv env

  source env/bin/activate

• To deploy your lambda function run the following command

  sls deploy