Create Launch Template

Create a Launch Template

ℹ️ Objective

• A Launch Template acts as a detailed “blueprint” for launching an EC2 instance. It stores all necessary configuration parameters such as the AMI, instance type, key pair, and security group.
• Our goal is to create a Launch Template that uses the web server’s AMI (ors-ami) created in the previous step. The Auto Scaling Group will rely on this blueprint to automatically launch new instances consistently and accurately.

🔒 Steps to Follow

1. Access Launch Templates

• From the EC2 Dashboard, on the left menu, scroll down to the Instances section and select Launch Templates.
• Click on Create launch template.

2. Configure Basic Information

• Launch template name: ors-launch-template
• Template version description: Launch template for Online Restaurant System servers

3. Select AMI (Amazon Machine Image)

• In the Application and OS Images (Amazon Machine Image) section, select the My AMIs tab.
• Select Owned by me and you will see the ors-ami AMI created in the previous step. Select it.

4. Select Instance Type and Key Pair

• Instance type: Select t2.micro.
• Key pair (login): Select ors-keypair from the dropdown list.

5. Configure Network Settings

• In the Network settings section, we do not need to select a Subnet, as the Auto Scaling Group will decide this automatically.
• However, we do need to specify the Security Group.
• Security groups: Choose Select existing security group.
• From the Common security groups list, select ors-sg.

6. Finalize and Review the Launch Template

• Review all the configured information in the Summary panel on the right.
• Scroll down and click Create launch template.

• After successful creation, click View launch templates to review the “blueprint” you just created in the list.