The EC2 instance type, which must be compatible with the AMI ID.You need the following parameters to launch an EC2 instance: Establish minimum parameters for the EC2 instance You can also specify a region by setting the AWS_REGION environment variable or passing the parameter –region in the AWS CLI. The AWS Region is an essential parameter to configure in the CLI. Attach the AmazonEC2FullAccess IAM policy to the user to ensure they can complete the steps required. For example, the user must be able to create AWS security groups and Elastic Block Storage (EBS) volumes. To follow this tutorial, the IAM user configured in the credentials file needs sufficient permissions to start EC2 instances and write permissions related to EC2. If running commands from an EC2 instance, configure an AWS Identity and Access Management (IAM) instance profile so you do not need to configure credentials internally. Instead, configure those credentials in a local file. You can include AWS credentials in environment variables or in the command itself, but that creates security vulnerabilities. For the AWS CLI, AWS credentials are stored in the $HOME/.aws/credentials file. Next, ensure that the right permissions are configured in the environment where you will execute CLI commands. Refer to AWS' documentation for the latest commands, locations of packages and dependencies you need to install the AWS CLI in Linux, Apple MacOS and Windows operating systems. It covers the initial setup for the AWS CLI environment, the minimum parameters required to launch an instance and additional important parameters commonly used in AWS deployments. In this step-by-step tutorial, learn how to use the AWS CLI to launch EC2 instances.

Users, however, might experience a learning curve going from the GUI-based AWS Console to commands.

The AWS CLI also involves far less manual work than the Console to create and initiate an EC2 instance. Users might choose the AWS CLI over the AWS Console because it is a scalable way to launch cloud resources.

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