Simple Terraform AWS lambda, API GATEWAY

tech: lambda, API Gateway, SG, VPC, CI/CD(workflow), Python, DynamoDB, ElastiCache(Redis) This Repo has been tested automatically with GitHub workflow.

What it's doing?

It demonstrates the connection between two lambda, lambda to API Gateway, lambda to DynamoDB, Lambda to redis, Lambda to VPC and Internet.

The main lambda gets a cat fact from another lambda by every endpoint call. The other one also retrieves data from DynamoDB or ElasticCache (randomly) that it got all data from an external API endpoint.

Prerequisites

• Ubuntu (preferably a linux base machine)
• AWS access_key_id
• AWS access_key_secret
• AWS CLI
• Terraform Workspace
• Terraform Token
• Terraform CLI

Setup

For deploying you need to install AWS CLI as well as access_key_id and access_key_secret after creating a user with the correct permissions and at least programmatic access to AWS along with initializing the AWS CLI, then you need terraform cli,also, a workspace on terraform (and the token), (per sure you need an account) after that go to the target folder (e.g., cd terraform_simple_task):

Tests in Workflow

• terraform format
• terraform validation
• terraform apply
• API endpoint tests
• terraform destroy

Running

terraform init

terraform apply --auto-approve

then it returns the AWS_API_GATEWAY endpoint (named base_url) which you can send GET request to that like : curl "$(terraform output -raw base_url)" then it returns a JSON response.

NOTICE

It's not safe to deploy, only for test purposes.