Transforming images using S3 Events and Lambda

This project will use S3 events that will trigger a lambda. Every time an image is uploaded, it will trigger the Lambda and transform and make the image pixelized.

This lab was a follow along with Adrian Cantrill’s course: https://github.com/acantril/learn-cantrill-io-labs/tree/master/00-aws-simple-demos/aws-lambda-s3-events

Create the S3 Buckets

In the S3 portal, click on ‘Create bucket’ we will need to create 2 buckets:

Give it a unique name, I named one ‘imagepixelationsource’ and ‘imagepixelationprocessed’:

Create the Lambda role

Navigate to IAM and select ‘Roles’, click on ‘Create role’:

Select ‘AWS service’ and choose Lambda:

Give it a name and select ‘Create role’, we will not be adding any policies yet:

Select the role and select ‘Add permissions’ and ‘Create inline policy’:

Select JSON and paste the JSON copied from https://raw.githubusercontent.com/acantril/learn-cantrill-io-labs/master/00-aws-simple-demos/aws-lambda-s3-events/01_LABSETUP/policy/s3pixelator.json to here. Edit in the bucket names and account ID:

Give the policy a name and click ‘Create policy’:

Create the Lambda Function

Navigate to the Lambda page and click on ‘Create a function’:

Author from scratch and fill out the required information: Function name Python 3.9 x86_64 Use an existing role (Select the role created in the step above)