Since the repository contains many modules, you must run them in the correct sequence.
Some of the modules may not be suited for production use since this is a demonstration of how to utilize CloudFront, S3, and API Gateway. For example, public access to the S3 bucket will be granted.
Please populate execution/nonprod/variables/variables.tfvars with your values.
After that, go to execution/nonprod/00-infra and run terraform init
In the same directory, run terraform plan: terraform plan -var-file=../variables/variables.tfvars --out=tfplan
This command will generate a plan file in the same directory.
You may want to apply the plan: terraform apply tfplan
After implementing the plan, move on to the other modules and follow the same steps in the other modules. Please follow the module numbers in execution/nonprod folder.
The repository contains 5 different modules:
- Module for Infrastructure
The Infra module will create VPC, subnets, elastic IP and security group.
An IPv4 address and an IPv6 address will be exported.
- Module for Lambda
The Lambda module will upload the Lambda function in the code directory to AWS. Besides, it will create an IAM Role for the lambda function.
- Module for API Gateway
The API Gateway module will construct an API Gateway and link it to the Lambda function that was generated in the previous phase.
The URL of the generated API Gateway will be exported.
- Module for S3 Bucket
The S3 Bucket will construct an S3 Bucket with Public access.
- Module for CloudFront
The CloudFront module will construct an CloudFront distribution. Together with the behavior patterns, two origins (one for S3, one for API Gateway) will be created in the distribution.
The URL of the generated CloudFront distribution will be exported.
In the S3 bucket, create a folder called images and upload a file called car.jpg to that folder.
Send a request to: https://CLOUDFRONT_URL/ENVIRONMENT and https://CLOUDFRONT_URL/images/car.jpg
In the variables.tfvars file, you can set the environment name for the CloudFront URL.
P.S.: You can find the data blocks in the main.tf file of the relevant module. Thus, you can see the external dependencies of a module.