ℹ️ Information: In this section, we’ll create a Launch Template using an Amazon Machine Image (AMI) from our existing EC2 instance. This approach ensures consistent deployment of our application across multiple instances.
ℹ️ Information: Amazon Machine Images (AMIs) capture the complete state of an EC2 instance, including the operating system, applications, and configurations. Launch Templates define the complete instance configuration, including AMI, instance type, networking, and security settings, enabling consistent and repeatable deployments.
To create an AMI from your existing EC2 instance:
Configure the AMI with the following settings:
FCJ-Management-AMI
AMI for FCJ-Management
Verify the AMI creation:
⚠️ Warning: The AMI creation process takes approximately 3 minutes to complete. Wait until the Status changes to Available before proceeding.
Once your AMI is available, create a Launch Template:
Configure the basic template information:
FCJ-Management-template
Template for FCJ Management
Configure the AMI and instance specifications:
t2.micro
fcj-key
AutoScaling-Lab-public-ap-southeast-1a
After creation, verify your Launch Template:
💡 Pro Tip: Launch Templates support versioning, allowing you to iterate on your configuration while maintaining the ability to roll back to previous versions if needed.
🔒 Security Note: When creating Launch Templates, always follow the principle of least privilege by assigning only the necessary permissions to your instances through security groups and IAM roles.