AWS_CloudFormation

A simple CloudFormation repository to show how to create and deploy s3 and lambda templates in stack.

Deploying Templates To CloudFormation Stacks

A CloudFormation template is a declaration of AWS resources that make up a stack. The template is stored as either a JSON or YAML file, since they are just text files they can be edited using any text editor and managed in source control system with the rest of your code.

Template1: S3 Bucket

This template is for a simple s3 bucket. The template will be uploaded to a s3 bucket befor deploying to stack. The code to upload the template to s3 bucket is:

aws s3 cp templates/template1-s3-bucket.yaml s3://<bucket-name>/templates/template1-s3-bucket.yaml

Once the template has been uploaded to S3, the CloudFormation stack can be created with this code:

aws cloudformation create-stack \
--stack-name <cf-stack-name> \
--template-url https://<bucket-name>.s3.eu-west-2.amazonaws.com/templates/template1-s3-bucket.yaml \
--region eu-west-2

The template can be extended by adding another S3 bucket, uploading the revision to S3 and run then using the aws cloudformation update-stack command to update the stack.

Template2: Lambda Function

Template3: Lambda Function with S3 Trigger

Template4: Lambda Deployment Packages