AWS provides multiple ways to launch an EC2 instance including the AWS Management Console, AWS CLI, AWS SDKs, CloudFormation, Terraform, and the EC2 Launch Wizard. Each method suits different use cases from manual setup to fully automated infrastructure provisioning.
Launching an EC2 instance means provisioning a virtual server in the AWS cloud. AWS offers several methods to do this depending on whether you want a manual, scripted, or fully automated approach. Each method ultimately calls the same underlying AWS EC2 API but at different levels of abstraction.
AWS Management Console — The web-based GUI at console.aws.amazon.com. Best for beginners and one-off manual launches. Provides a step-by-step wizard to select AMI, instance type, networking, storage, and security groups.
AWS CLI (Command Line Interface) — Launch instances programmatically from your terminal using the aws ec2 run-instances command. Ideal for scripting and automation.
AWS SDKs — Use official SDKs (Boto3 for Python, AWS SDK for JavaScript, Java, Go, etc.) to launch instances from application code.
AWS CloudFormation — Define EC2 instances as Infrastructure as Code (IaC) in YAML or JSON templates. Best for repeatable, version-controlled infrastructure.
Terraform — Third-party IaC tool by HashiCorp. Uses HCL (HashiCorp Configuration Language) to provision EC2 instances across multiple cloud providers.
AWS Auto Scaling — Automatically launches and terminates EC2 instances based on scaling policies and CloudWatch alarms.
AWS Elastic Beanstalk — Launches EC2 instances automatically as part of a managed application environment.
EC2 Launch Templates — Reusable configuration templates that store AMI ID, instance type, key pair, security groups, etc., for consistent and repeated launches.
AWS Systems Manager (SSM) — Can be used to automate instance launches and configuration via Run Command and Automation documents.
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