Code with Terraform

POC on AWS Services like IAM, S3, Lambda, API Gateway & CloudFront using Terraform (IaC)

Reference is been taken from: https://github.com/KanchanSoni16/terraform-s3-lambda-apigatway

Document: https://docs.google.com/

Terraform Architecture

S3 (Simple Storage Service)

• Brief: 

• An object storage service that offers industry-leading scalability, data availability, security, and performance code 

• Files used: 

• aws_s3.tf 

resource "aws_s3_bucket" "api_bucket" {

  bucket = "${var.myregion}-${var.bucket_name}"

  tags = {

    Name        = "${var.myregion}-${var.bucket_name}"

    Environment = "${var.environment}"

  }

}

resource "aws_s3_bucket_acl" "api_acl" {

  bucket = aws_s3_bucket.api_bucket.id

  acl    = var.acl

  depends_on = [

    aws_s3_bucket.api_bucket

  ]

}

• variable.tf

variable "bucket_name" {

  default = ""

}

variable "environment" {

  default = ""

}

variable "myregion" {

  default = ""

}

variable "acl" {

  default = ""

}

• terraform.tfvars

bucket_name = "lambdabucketapi"

myregion = "us-east-1"

environment = "Dev"

acl                     = "public-read-write"

NOTE: Change values according to your Variables and service names.

• File used: Object Upload
• aws_s3.tf 

resource "aws_s3_object" "object" {

  bucket = "${var.myregion}-${var.bucket_name}"

  key    = var.object_key

  source = var.object_source

  acl = var.object_acl

  etag = filemd5(var.object_source)

  depends_on = [

    aws_s3_bucket.api_bucket

  ]

}

• variable.tf

variable "object_key" {

  default = ""

}

variable "object_source" {

  default = ""

}

variable "object_acl" {

  default = ""

}

• terraform.tfvars

object_key              = "sample.txt"

object_source        = "Object/sample.txt"

object_acl              = "public-read-write"

•  Implementation Steps:

Step:1 terraform init

Step:2 terraform plan:

Step:3 terraform apply:

Lambda

• Brief:

• Lambda is a serverless computing service that lets you build applications that respond quickly to new information and events

• Reference: https://faun.pub/building-s3-event-triggers-for-aws-lambda-using-terraform-1d61a05b4c97

• Services used as mentioned below:

• aws_iam_role
• aws_iam_role_policy
• aws_lambda_function
• aws_s3_bucket_notification
• aws_lambda_permission

• File used:

• lambda-function.tf
• lambda-role.tf
• variable.tf
• terraform.tfvars
• iam_files (json-files)

• GitHub: https://github.com/KanchanSoni16/terraform-s3-lambda-apigatway.git

• Implementation Steps:

Step:1 terraform init:

Step:2 terraform plan:

Step:3 terraform apply:

API Gateway

• Brief: 

• An API gateway is an API management tool that sits between a client and a collection of backend services. An API gateway acts as a reverse proxy to accept all application programming interface (API) calls, aggregate the various services required to fulfil them and return the appropriate result.

• Services used as mentioned below:

• aws_iam_role
• aws_iam_role_policy
• aws_api_gateway_rest_api
• aws_api_gateway_resource
• aws_api_gateway_method
• aws_api_gateway_integration
• aws_api_gateway_method_response
• aws_api_gateway_integration_response
• aws_lambda_permission
• aws_api_gateway_deployment

• File used:

• api_gateway.tf
• apigatway-integration-role.tf
• variable.tf
• terraform.tfvars
• iam_files (json-files)

• GitHub: https://github.com/KanchanSoni16/terraform-s3-lambda-apigatway.git

• Implementation Steps:

Step:1 terraform init:

Step:2 terraform plan:

Step:3 terraform apply:

CloudFront

• Brief: 

• CloudFront is a fast content delivery network (CDN) service that securely delivers data, videos, applications, and APIs to customers globally with low latency, and high transfer speeds, all within a developer-friendly environment.

• File used:

• cloudfront.tf
• variable.tf
• terraform.tfvars

• GitHub: https://github.com/KanchanSoni16/terraform-s3-lambda-apigatway.git

• Implementation Steps:

Step:1 terraform init:

Step:2 terraform plan:

Step:3 terraform apply:

Terraform Backend & Terraform Output

• Brief: 

• A backend defines where terraform stores its state data files. Terraform Back can be anything like AWS S3, Terraform Cloud, Google cloud etc.
• Output values return information about our infrastructure on the command line and can give information for other Terraform configurations to use. Output values are like return values in programming languages.

• File used:

• output.tf
• backend-resources.tf
• terraform.tf
• variable.tf
• terraform.tfvars

• GitHub: https://github.com/KanchanSoni16/terraform-s3-lambda-apigatway.git

• Implementation Steps:

Step:1 terraform init:

Step:2 terraform plan:

Step:3 terraform apply:

Git Push automation

• Brief: 

• A Git Push defines to push the complete code automatically in git repo “awesome_project”.

• File used:

• git.sh
• local_provisioner.tf
• terraform.tf
• variable.tf
• terraform.tfvars

• GitHub:  https://github.com/KanchanSoni16/terraform-s3-lambda-apigatway.git

• Implementation Steps:

Step:1 terraform init:

Step:2 terraform plan:

Step:3 terraform apply:

Full YouTube Video with Step by Step implementation:

Thanks & Regards,

Kanchan Soni(https://linktr.ee/kanchansoni) 

(A girl who saw the dream with an open eye to compete with self-capability in the area of IT and its Next-Gen Technology, with the ability to complete the task with perfection.)

Tapan Patni (https://linktr.ee/tapanpatni)

Email: tapanpatni58@gmail.com

Youtube: https://www.youtube.com/c/TapanPatni

Linkedin: https://www.linkedin.com/in/tapan-patni