Set Up Public VPC and EC2 for Internet Access

Tasks

• Create a public VPC named devops-pub-vpc.

• Create a subnet named devops-pub-subnet under the VPC.

• Ensure public IPs are automatically assigned to resources in this subnet.

• Create an EC2 instance named devops-pub-ec2 under this VPC.

• Ensure SSH port 22 is open for this instance and accessible over the internet.

  Steps

  1. Create a VPC now.

     
  2. VPC → Your VPCs → Create VPC

     Enter the following details:

     • Name tag: devops-pub-vpc

     • IPv4 CIDR block: 10.0.0.0/16

     • IPv6 CIDR block: No IPv6 CIDR block.

     • Tenancy: Default

       Click Create VPC*.*

1. You successfully created vpc-0fe2735e948ae693d / devops-pub-vpc.

   
2. Enable Public DNS for the VPC

   • Select the newly created VPC (devops-pub-vpc) in the VPC dashboard.

   • Go to the Actions dropdown and choose Edit DNS hostnames.

   • Enable both DNS resolution and DNS hostnames.

   • Save changes.

     VPC → Your VPCs → vpc-0fe2735e948ae693d → Edit VPC settings

     
3. Create the Subnet

   a) In the VPC Dashboard, click Create Subnet.

   

   b) Enter the following details:

   • VPC: Select devops-pub-vpc.

   • Subnet name: devops-pub-subnet.

   • Availability Zone: Select any (e.g., us-east-1a).

   • IPv4 CIDR block: 10.0.1.0/24.

VPC → Subnets → Create subnet

1. Enable Auto-assign public IPv4 address.

   
2. Create an Internet Gateway

   
3. Go to Actions, and choose Attach to VPC.

   
4. Select devops-pub-vpc and click Attach internet gateway.

   
5. Create and Configure a Route Table

   • In the VPC Dashboard, go to Route Tables.

   • Click Create route table.

   • Enter the following details:

     • Name tag: devops-pub-rt

     • VPC: Select devops-pub-vpc.

   • Click Create route table.

     VPC → Route tables → Create route table

     
6. Click Edit routes.

   
7. Add the following route:

   • Destination: 0.0.0.0/0

   • Target: Internet Gateway (select devops-igw from the dropdown).

   • Save changes.

1. Edit subnet associations

   VPC → Route tables → rtb-005a434e2701bf060 → Edit subnet associations

   
2. Create a Security Group

   Enter the following details:

   • Security group name: devops-pub-sg

   • Description: Allow SSH access.

   • VPC: Select devops-pub-vpc.

3. Add an Inbound Rule:

   • Type: SSH

   • Protocol: TCP

   • Port Range: 22

   • Source: 0.0.0.0/0

1. Launch the EC2 Instance

   • Go to the EC2 Dashboard and click Launch Instances.

   • Enter the following details:

     • Name: devops-pub-ec2.

     • AMI: Any of ami ( I am choosing ubuntu right now)

     • Instance type: t2.micro.

     • Key pair: Select an existing key pair or create a new one.

     • Network settings:

       • VPC: Select devops-pub-vpc.

       • Subnet: Select devops-pub-subnet.

       • Auto-assign public IP: Enabled (should be automatic due to subnet settings).

       • Security group: Select devops-pub-sg.

   • Click Launch Instance.

     

     Congrats! You have successfully completed the task.