AWS EC2

 Amazon EC2:

• EC2 is one of the most popular of AWS offering
• EC2 = Elastic Compute Cloud = Infrastructure as a Services
• It mainly consists in the capability of 
• Renting virtual machines (EC2)
• Storing data on virtual drivers (EBS)
• Distributing load across machines (ELB)
• Scaling the services using an auto-scaling group (ASG)

EC2 sizing & configuration options

• Operating system(OS)
• Linux
• Windows
• Mac OS
• How much compute power & cores (CPU)
• How much random-access memory (RAM)
• How much storage space
• Network-attached (EBS & EFS)
• Hardware
• Network Card
• Speed of the card, Public IP address
• Firewall rules
• Security groups
• Bootstrap script (configure at first launch)
• EC2 User Data 

Ec2 Instance Type -Overview

• You can use different types of EC2 instances that are optimized for different use cases (https://aws.amazon.com/ec2/instance-types/)
• Aws has the following naming convention

m5.2xlarge

• m
• instance class
• 5
• Generation (AWS improve over time)
•  2xlarge
• Size within the instance class

EC2 Instance type 

 General purpose

• Great for the delivery of workloads such as web servers and code repositories.
• Balance between
• Compute
• Memory 
• networking 
• T2.micro is a general-purpose instance of EC2
• https://aws.amazon.com/ec2/instance-types/

Compute Optimized

• Great for compute-intensive tasks that require high-performance task
• Use Case
• Batch processing workload 
• Media transcoding
• high-performance web servers 
• high-performance computing (HPC)
• Scientific modeling & machine learning 
• Dedicated gaming server 

Memory Optimized

• Fast performance for workloads that process large data sets in memory
• Use Case
• High-performance, relation/non-relation databases
• Distributed web-scale cache stores 
• In-memory performances optimized for BI (Business intelligence)
• An application performing real-time processing of big unstructured data 

Storage Optimized

• Grate for storage-intensive tasks that required high, sequential read and write access to large data sets on large data sets on local storage.
• Use Case
• High-frequency online transaction processing (OLTP) system
• Relational & Non-Relational Database 
• Cache for in-memory database 
• Data warehousing applications
• Distributed file systems

for instance price comparison, please visit the website