An experiment in using terraform and serverless in a single project. Based on AWS Labs Serverless Workshop
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WildRydes Terraform/Serverless Framework

This project uses terraform and serverless to create AWSLabs' WildRydes tutorial project:

To follow along you will need AWS CLI, Terraform and Serverless Framework installed and configured.

npm install -g serverless
brew update && brew install awscli terraform

aws configure



from the terraform directory:

terraform init
terraform plan
# confirm all is well, correct aws account etc.
terraform apply

Terraform will use Amazon as your provider to setup resources on your behalf. Wild Ride will setup two resources on our behalf, Amazon Cognito and Amazon Simple Storage Service (S3).

Terraform uses the cognito-user-pool module to manage our user membership and identities through AWS Cognito.

Terraform uses the s3-static-host module to create an S3 bucket for static site hosting and populates it with files for the project application.

Use terraform plan to test and preview what kind of actions terraform will take as dry-run. If all the described changes are correct and AWS is configured correctly run terraform apply. The output from a successful terraform apply will include some important identifiers for the resources created and the URL to visit our new web application.

You might notice a new file in the serverless/ directory now. A part of the terraform provisioning will automate the creation and population of an serverless/.env.json file necessary for passing the created AWS cognito pool ARN over to serverless/serverless.yml, where it's used as an authorizer for our API method.

Serverless Framework

from the serverless directory:

sls deploy

Serverless Framework will have now deployed our DynamoDB table, API, and Lambda function.

Updating Application config.js

Create a new file anywhere (locally) called config.js and paste this js snippet in.

window._config = {
  api: {
    invokeUrl: '' // e.g.',
  cognito: {
    userPoolId: '', // e.g. us-east-2_uXboG5pAb
    userPoolClientId: '', // e.g. 25ddkmj4v6hfsfvruhpfi7n4hv
    region: '' // e.g. us-east-2

Fill in the values from output seen post-deploy. invokeUrl will come from sls deploy output as the base url for the "requestUnicorn" endpoint.

example: endpoints: POST - would make my invokeUrl

Using the command terraform output in the terraform directory, you will be able to get the appropriate cognito credentials to fill out the cognito object.

Upload config to S3

The bucket's name will have been in the terraform output

aws s3 cp config.js s3://BUCKET_NAME/js/config.js


# within serverless/ dir
sls remove

# within terraform/ dir
terraform destroy