Streamlining VPC and EC2 Deployment with CloudFormation in AWS

Module 8: CloudFormation Assignment - 2

Problem Statement: You work for XYZ Corporation. Your team is asked to deploy similar architecture multiple times for testing, development, and production purposes. Implement CloudFormation for the tasks assigned to you below.

Tasks To Be Performed:

1. Create a template with 1 VPC and 1 public subnet.
2. Launch an Amazon Linux EC2 instance in the public subnet and tag the instance as “CFinstance”

We followed the methodology from Assignment 1 – CloudFormation S3 Template to establish our CloudFormation stack.

Stack Name: EC2VPC

The applied template performs the following tasks:

1. Creates a VPC.
2. Creates a public subnet within the VPC.
3. Launches an Amazon Linux EC2 instance within the public subnet and tags it as “CFinstance”.

AWSTemplateFormatVersion: '2010-09-09'
Description: 'CloudFormation Assignment: VPC, Public Subnet, and EC2 Instance'
 
Resources:
  MyVPC:
    Type: 'AWS::EC2::VPC'
    Properties:
      CidrBlock: '10.0.0.0/16'
      EnableDnsSupport: 'true'
      EnableDnsHostnames: 'true'
      Tags:
        - Key: 'Name'
          Value: 'AssignmentVPC'
 
  PublicSubnet:
    Type: 'AWS::EC2::Subnet'
    Properties:
      VpcId: !Ref MyVPC
      CidrBlock: '10.0.1.0/24'
      MapPublicIpOnLaunch: 'true'
      Tags:
        - Key: 'Name'
          Value: 'AssignmentPublicSubnet'
 
  InstanceSecurityGroup:
    Type: 'AWS::EC2::SecurityGroup'
    Properties:
      GroupDescription: 'Allow SSH and HTTP'
      VpcId: !Ref MyVPC
      SecurityGroupIngress:
        - IpProtocol: 'tcp'
          FromPort: '22'
          ToPort: '22'
          CidrIp: '0.0.0.0/0'
 
  EC2Instance:
    Type: 'AWS::EC2::Instance'
    Properties:
      InstanceType: 't2.micro'
      ImageId: 'ami-0c55b159cbfafe1f0'  # Amazon Linux 2 LTS AMI
      SubnetId: !Ref PublicSubnet
      SecurityGroupIds:
        - !Ref InstanceSecurityGroup
      Tags:
        - Key: 'Name'
          Value: 'CFinstance'
 
Outputs:
  VPCID:
    Description: 'VPC ID'
    Value: !Ref MyVPC
 
  PublicSubnetID:
    Description: 'Public Subnet ID'
    Value: !Ref PublicSubnet
 
  EC2InstanceID:
    Description: 'EC2 Instance ID'
    Value: !Ref EC2Instance
 

Events Leading to the Stack Creation:
The stack EC2VPC was successfully created as indicated by the CREATE_COMPLETE status.

The VPC defined in the template (AssignmentVPC) appears to be available.

Instances CFintnanace is up and running
This instance is associated with the AssignmentVPC and AssignmentPublicSubnet that were recently created.