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Merge pull request #2 from devops-deepaktogloor/feature
Merging with main branch
2 parents 674c096 + 899eccc commit a361909

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‎.github/workflows/deploy.yaml

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name : Terraform CI CD Pipeline for deploying AWS Resources
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run-name: ${{ github.actor }} is creating a new deployment
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on:
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push:
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branches:
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- 'main'
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env:
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AWS_ACCESS_KEY: ${{ secrets.AWS_ACCESS_KEY }}
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AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
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jobs:
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build-infra:
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name: terraform-ci-cd
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runs-on: ubuntu-latest
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steps:
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- name: Checkout
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uses: actions/checkout@v2
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- name: Setup Terraform
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uses: hashicorp/setup-terraform@v2
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with:
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terraform_version: 1.0.0
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- name: Terraform Init
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id: init
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run: terraform init
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working-directory: ./Terraform-VPC
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- name: Terraform Validate
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id: validate
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run: terraform validate
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working-directory: ./Terraform-VPC
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- name: Terraform Plan
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id: plan
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run: terraform plan
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working-directory: ./Terraform-VPC
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- name: Terraform Apply
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id: apply
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run: terraform apply --auto-approve
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working-directory: ./Terraform-VPC
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‎Terraform-VPC/.gitignore

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.terraform/
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.terraform.lock.hcl

‎Terraform-VPC/main.tf

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module "vpc" {
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source = "./modules/vpc"
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vpc_cidr = var.vpc_cidr
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subnet_cidr = var.subnet_cidr
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}
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module "sg" {
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source = "./modules/sg"
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vpc_id = module.vpc.vpc_id
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}
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module "ec2" {
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source = "./modules/ec2"
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sg_id = module.sg.sg_id
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subnets = module.vpc.subnet_ids
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}
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module "alb" {
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source = "./modules/alb"
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sg_id = module.sg.sg_id
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subnets = module.vpc.subnet_ids
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vpc_id = module.vpc.vpc_id
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instances = module.ec2.instances
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}

‎Terraform-VPC/modules/alb/data.tf

Whitespace-only changes.

‎Terraform-VPC/modules/alb/main.tf

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#ALB
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resource "aws_lb" "alb" {
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name = "application-loadbalancer"
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internal = false
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load_balancer_type = "application"
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security_groups = [var.sg_id]
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subnets = var.subnets
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}
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# Listener
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resource "aws_lb_listener" "listener" {
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load_balancer_arn = aws_lb.alb.arn
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port = "80"
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protocol = "HTTP"
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default_action {
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type = "forward"
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target_group_arn = aws_lb_target_group.tg.arn
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}
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}
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# Target Group
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resource "aws_lb_target_group" "tg" {
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name = "tg"
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port = 80
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protocol = "HTTP"
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vpc_id = var.vpc_id
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}
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# Target Group Attachment
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resource "aws_lb_target_group_attachment" "tga" {
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count = length(var.instances)
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target_group_arn = aws_lb_target_group.tg.arn
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target_id = var.instances[count.index]
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port = 80
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}

‎Terraform-VPC/modules/alb/outputs.tf

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‎Terraform-VPC/modules/alb/variables.tf

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variable "sg_id" {
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description = "sg id for application load balancer"
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type = string
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}
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variable "subnets" {
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description = "sg subnets for application load balancer"
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type = list(string)
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}
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variable "vpc_id" {
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description = "VPC id for Target Group"
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type = string
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}
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variable "instances" {
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description = "Instance ID for Target Group Attachment"
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type = list(string)
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}

‎Terraform-VPC/modules/ec2/data.tf

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data "aws_ami" "amazon-2" {
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most_recent = true
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filter {
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name = "name"
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values = ["amzn2-ami-hvm-*-x86_64-ebs"]
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}
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filter {
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name = "virtualization-type"
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values = ["hvm"]
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}
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owners = ["amazon"]
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}
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data "aws_availability_zones" "available" {
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state = "available"
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}

‎Terraform-VPC/modules/ec2/main.tf

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resource "aws_instance" "web" {
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count = length(var.ec2_names)
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ami = data.aws_ami.amazon-2.id
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instance_type = "t2.micro"
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associate_public_ip_address = true
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vpc_security_group_ids = [var.sg_id]
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subnet_id = var.subnets[count.index]
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availability_zone = data.aws_availability_zones.available.names[count.index]
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user_data = <<EOF
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#!/bin/bash
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sudo yum update -y
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sudo yum install -y httpd
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sudo yum install -y git
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export META_INST_ID=`curl http://169.254.169.254/latest/meta-data/instance-id`
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export META_INST_TYPE=`curl http://169.254.169.254/latest/meta-data/instance-type`
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export META_INST_AZ=`curl http://169.254.169.254/latest/meta-data/placement/availability-zone`
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cd /var/www/html
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echo "<!DOCTYPE html>" >> index.html
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echo "<html lang="en">" >> index.html
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echo "<head>" >> index.html
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echo " <meta charset="UTF-8">" >> index.html
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echo " <meta name="viewport" content="width=device-width, initial-scale=1.0">" >> index.html
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echo " <style>" >> index.html
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echo " @import url('https://fonts.googleapis.com/css?family=Open+Sans&display=swap');" >> index.html
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echo " html {" >> index.html
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echo " position: relative;" >> index.html
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echo " overflow-x: hidden !important;" >> index.html
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echo " }" >> index.html
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echo " * {" >> index.html
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echo " box-sizing: border-box;" >> index.html
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echo " }" >> index.html
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echo " body {" >> index.html
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echo " font-family: 'Open Sans', sans-serif;" >> index.html
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echo " color: #324e63;" >> index.html
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echo " }" >> index.html
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echo " .wrapper {" >> index.html
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echo " width: 100%;" >> index.html
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echo " width: 100%;" >> index.html
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echo " height: auto;" >> index.html
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echo " min-height: 90vh;" >> index.html
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echo " padding: 50px 20px;" >> index.html
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echo " padding-top: 100px;" >> index.html
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echo " display: flex;" >> index.html
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echo " }" >> index.html
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echo " .instance-card {" >> index.html
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echo " width: 100%;" >> index.html
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echo " min-height: 380px;" >> index.html
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echo " margin: auto;" >> index.html
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echo " box-shadow: 12px 12px 2px 1px rgba(13, 28, 39, 0.4);" >> index.html
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echo " background: #fff;" >> index.html
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echo " border-radius: 15px;" >> index.html
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echo " border-width: 1px;" >> index.html
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echo " max-width: 500px;" >> index.html
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echo " position: relative;" >> index.html
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echo " border: thin groove #9c83ff;" >> index.html
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echo " }" >> index.html
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echo " .instance-card__cnt {" >> index.html
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echo " margin-top: 35px;" >> index.html
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echo " text-align: center;" >> index.html
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echo " padding: 0 20px;" >> index.html
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echo " padding-bottom: 40px;" >> index.html
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echo " transition: all .3s;" >> index.html
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echo " }" >> index.html
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echo " .instance-card__name {" >> index.html
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echo " font-weight: 700;" >> index.html
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echo " font-size: 24px;" >> index.html
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echo " color: #6944ff;" >> index.html
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echo " margin-bottom: 15px;" >> index.html
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echo " }" >> index.html
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echo " .instance-card-inf__item {" >> index.html
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echo " padding: 10px 35px;" >> index.html
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echo " min-width: 150px;" >> index.html
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echo " }" >> index.html
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echo " .instance-card-inf__title {" >> index.html
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echo " font-weight: 700;" >> index.html
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echo " font-size: 27px;" >> index.html
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echo " color: #324e63;" >> index.html
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echo " }" >> index.html
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echo " .instance-card-inf__txt {" >> index.html
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echo " font-weight: 500;" >> index.html
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echo " margin-top: 7px;" >> index.html
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echo " }" >> index.html
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echo " </style>" >> index.html
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echo " <title>Amazon EC2 Status</title>" >> index.html
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echo "</head>" >> index.html
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echo "<body>" >> index.html
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echo " <div class="wrapper">" >> index.html
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echo " <div class="instance-card">" >> index.html
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echo " <div class="instance-card__cnt">" >> index.html
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echo " <div class="instance-card__name">Your EC2 Instance is running!</div>" >> index.html
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echo " <div class="instance-card-inf">" >> index.html
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echo " <div class="instance-card-inf__item">" >> index.html
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echo " <div class="instance-card-inf__txt">Instance Id</div>" >> index.html
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echo " <div class="instance-card-inf__title">" $META_INST_ID "</div>" >> index.html
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echo " </div>" >> index.html
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echo " <div class="instance-card-inf__item">" >> index.html
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echo " <div class="instance-card-inf__txt">Instance Type</div>" >> index.html
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echo " <div class="instance-card-inf__title">" $META_INST_TYPE "</div>" >> index.html
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echo " </div>" >> index.html
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echo " <div class="instance-card-inf__item">" >> index.html
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echo " <div class="instance-card-inf__txt">Availability zone</div>" >> index.html
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echo " <div class="instance-card-inf__title">" $META_INST_AZ "</div>" >> index.html
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echo " </div>" >> index.html
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echo " </div>" >> index.html
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echo " </div>" >> index.html
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echo " </div>" >> index.html
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echo "</body>" >> index.html
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echo "</html>" >> index.html
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sudo service httpd start
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EOF
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tags = {
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Name = var.ec2_names[count.index]
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}
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}

‎Terraform-VPC/modules/ec2/outputs.tf

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output "instances" {
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value = aws_instance.web.*.id
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}

‎Terraform-VPC/modules/ec2/variables.tf

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variable "sg_id" {
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description = "sg_id"
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type = string
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}
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variable "subnets" {
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description = "subnets for ec2"
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type = list(string)
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}
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variable "ec2_names" {
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description = "name for ec2 instance"
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type = list(string)
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default = [ "webserver1","webserver2" ]
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}

‎Terraform-VPC/modules/sg/main.tf

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resource "aws_security_group" "sg" {
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description = "Allow SSH, HTTP inbound traffic"
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vpc_id = var.vpc_id
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ingress {
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description = "HTTP"
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from_port = 80
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to_port = 80
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protocol = "tcp"
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cidr_blocks = ["0.0.0.0/0"]
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}
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ingress {
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description = "SSH"
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from_port = 22
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to_port = 22
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protocol = "tcp"
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cidr_blocks = ["0.0.0.0/0"]
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}
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egress {
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from_port = 0
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to_port = 0
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protocol = "-1"
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cidr_blocks = ["0.0.0.0/0"]
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}
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tags = {
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Name = "My_Security_Group"
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}
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}

‎Terraform-VPC/modules/sg/outputs.tf

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output "sg_id" {
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value = aws_security_group.sg.id
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}

‎Terraform-VPC/modules/sg/variables.tf

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variable "vpc_id" {
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description = "VPC ID for security group"
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type = string
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}

‎Terraform-VPC/modules/vpc/data.tf

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data "aws_availability_zones" "available" {
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state = "available"
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}

‎Terraform-VPC/modules/vpc/main.tf

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# VPC
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resource "aws_vpc" "my_vpc" {
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cidr_block = var.vpc_cidr
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instance_tenancy = "default"
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tags = {
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"Name" = "my_vpc"
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}
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}
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# 2 Subnets
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resource "aws_subnet" "subnets" {
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count = length(var.subnet_cidr)
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vpc_id = aws_vpc.my_vpc.id
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cidr_block = var.subnet_cidr[count.index]
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availability_zone = data.aws_availability_zones.available.names[count.index]
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map_public_ip_on_launch = true
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tags = {
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Name = var.subnet_names[count.index]
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}
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}
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# Internet Gateway
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resource "aws_internet_gateway" "igw" {
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vpc_id = aws_vpc.my_vpc.id
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tags = {
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Name = "MyInternetGateway"
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}
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}
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# Route Table
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resource "aws_route_table" "rt" {
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vpc_id = aws_vpc.my_vpc.id
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route {
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cidr_block = "0.0.0.0/0" # public
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gateway_id = aws_internet_gateway.igw.id
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}
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tags = {
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"Name" = "MyRouteTable"
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}
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}
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# Route Table Association
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resource "aws_route_table_association" "rta" {
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count = length(var.subnet_cidr)
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subnet_id = aws_subnet.subnets[count.index].id
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route_table_id = aws_route_table.rt.id
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}

‎Terraform-VPC/modules/vpc/outputs.tf

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output "vpc_id" {
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value = aws_vpc.my_vpc.id
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}
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output "subnet_ids" {
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value = aws_subnet.subnets.*.id
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}

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