Using AWS Cloudformation to deploy VPC, subnet, Security group, Linux instance, and static Apache website.

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{
  "AWSTemplateFormatVersion" : "2010-09-09",
  "Description" : "AWS CloudFormation Sample Template VPC_with_PublicIPs_And_DNS: Sample template that creates a VPC with DNS and public IPs enabled. Note that you are billed for the AWS resources that you use when you create a stack from this template.",
  "Parameters": {
    "KeyPair": {
      "Description": "Name of the keypair to use for SSH access",
      "Type": "String"
      }
  },

  "Resources" : {
    "VPC" : {
      "Type" : "AWS::EC2::VPC",
      "Properties" : {
        "EnableDnsSupport" : "true",
        "EnableDnsHostnames" : "true",
        "CidrBlock" : "10.0.0.0/16"
      }
    },
    "PublicSubnet" : {
      "Type" : "AWS::EC2::Subnet",
      "Properties" : {
        "VpcId" : { "Ref" : "VPC" },
        "CidrBlock" : "10.0.0.0/24"
      }
    },
    "InternetGateway" : {
      "Type" : "AWS::EC2::InternetGateway"
    },
    "VPCGatewayAttachment" : {
       "Type" : "AWS::EC2::VPCGatewayAttachment",
       "Properties" : {
         "VpcId" : { "Ref" : "VPC" },
         "InternetGatewayId" : { "Ref" : "InternetGateway" }
       }
    },
    "PublicRouteTable" : {
      "Type" : "AWS::EC2::RouteTable",
      "Properties" : {
        "VpcId" : { "Ref" : "VPC" }
      }
    },
    "PublicRoute" : {
      "Type" : "AWS::EC2::Route",
      "DependsOn" : "VPCGatewayAttachment",
      "Properties" : {
        "RouteTableId" : { "Ref" : "PublicRouteTable" },
        "DestinationCidrBlock" : "0.0.0.0/0",
        "GatewayId" : { "Ref" : "InternetGateway" }
      }
    },
    "PublicSubnetRouteTableAssociation" : {
      "Type" : "AWS::EC2::SubnetRouteTableAssociation",
      "Properties" : {
        "SubnetId" : { "Ref" : "PublicSubnet" },
        "RouteTableId" : { "Ref" : "PublicRouteTable" }
      }
    },
    "PublicSubnetNetworkAclAssociation" : {
      "Type" : "AWS::EC2::SubnetNetworkAclAssociation",
      "Properties" : {
        "SubnetId" : { "Ref" : "PublicSubnet" },
        "NetworkAclId" : { "Fn::GetAtt" : ["VPC", "DefaultNetworkAcl"] }
      }
    },
    "WebServerSecurityGroup" : {
      "Type" : "AWS::EC2::SecurityGroup",
      "Properties" : {
        "GroupDescription" : "Enable HTTP ingress",
        "VpcId" : { "Ref" : "VPC" },
        "SecurityGroupIngress" : [
          {"IpProtocol" : "tcp","FromPort" : "80","ToPort" : "80","CidrIp" : "0.0.0.0/0"},
          {"IpProtocol" : "tcp", "FromPort" : "22", "ToPort" : "22", "CidrIp" : "0.0.0.0/0"}]
       }
    },
    "WebServerInstance": {
      "Type": "AWS::EC2::Instance",
      "Properties": {
        "InstanceType": "t2.micro",
        "ImageId": "ami-8c1be5f6",
        "NetworkInterfaces" : [{
          "GroupSet"                 : [{"Ref": "WebServerSecurityGroup"}],
          "AssociatePublicIpAddress" : "true",
          "DeviceIndex"              : "0",
          "DeleteOnTermination"      : "true",
          "SubnetId"                 : {"Ref": "PublicSubnet"}
        }],
        "KeyName": {
          "Ref": "KeyPair"
        },
        "UserData": {
          "Fn::Base64": {
            "Fn::Join": [
              "\n",
              [
                "#!/bin/bash -xe",
                "sudo yum update -y",
                "sudo yum install httpd -y",
                "sudo /etc/init.d/httpd start",
                "echo \"<html><body><h1>Welcome to Tung - CISA Cloud Project !!!</h1>\" > /var/www/html/index.html",
                "echo \"</body></html>\" >> /var/www/html/index.html"
              ]
            ]
          }
        }
      }
    }

  },
  "Outputs" : {
    "URL" : {
      "Description" : "URL of the sample website",
      "Value" :  { "Fn::Join" : [ "", [ "http://", { "Fn::GetAtt" : [ "WebServerInstance", "PublicDnsName" ]}]]}
    }
  }
}

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