Understanding AWS EC2

AWS EC2 (Elastic Compute Cloud) is a web service provided by Amazon Web Services that offers resizable compute capacity in the cloud. It is designed to make web-scale cloud computing in an easy and efficient manner for developers. EC2 reduces the time required to obtain and boot new server instances, allowing you to quickly scale capacity, both up and down, as your computing requirements change.

Key Features of AWS EC2

AWS EC2 offers a multitude of features designed to enhance flexibility and scalability:

• Scalability and Elasticity: Automatically adjust capacity to meet demand using AWS Auto Scaling.
• Variety of Instance Types: Choose from a broad range of instance types optimized for different use cases.
• Multiple Purchasing Options: Select from On-Demand, Reserved, Spot, and Savings Plans pricing models to optimize costs.
• Secure and Reliable: Secure login information, firewalls, and dedicated instances offer increased security. Effectively leverage AWS infrastructure for high reliability.
• Mobile and API Access: Utilize the AWS Management Console, command line tools, and SDKs to configure instances and automate interaction with AWS services.

Instance Types

EC2 provides a variety of instance types to accommodate diverse use cases. Each instance type offers different compute, memory, and storage capacities. These are categorized into several families based on needs:

1. General Purpose: Balanced resource configuration, suitable for a wide range of workloads. Examples: t4g.micro , m6g.medium
2. Compute Optimized: High performance for compute-bound applications. Examples: c6g.large , c5n.2xlarge
3. Memory Optimized: Ideal for memory-intensive apps, offering high memory capabilities. Examples: r5b.2xlarge , x2g.xlarge
4. Storage Optimized: Designed for workloads requiring high sequential I/O access. Examples: i3en.large , d2.8xlarge
5. Accelerated Computing: Provides hardware accelerators, or co-processors, to boost performance. Examples: p4d.24xlarge , inf1.2xlarge
6. High Memory: Offers instances with up to 24 TB of memory, aimed at large in-memory databases. Examples: u-6tb1.metal

Displaying EC2 Instance Types Using the Command Line

AWS provides a command-line interface (CLI) for interacting with EC2 instances efficiently. You can list available instance types by running commands in a shell environment after setting up AWS CLI.

Step-by-Step Command Line Setup

Ensure that you have AWS CLI installed and configured with credentials.

1. Install AWS CLI: