Cloud Computing 101 - Session #5

Today, we will learn about EC2!

Elastic Compute Cloud - Infrastructure as Service

It consists of:

1. Renting virtual machines (EC2)

2. Storing data on virtual drives (EBS)

3. Distributing load across machines (ELB)

4. Scaling services using auto scaling group (ASG)

You can launch new instances to have websites using EC2

AWS has the following naming convention:

m5.2xlarge

m: instance class ; 5: generation (AWS improves them over time) ; 2xlarge: size within the instance class

Types of instances:

1. General purpose: Great for diversity of workloads such as web servers or code repo

2. Compute optimized: Great for compute intensive tasks that require high perf processor

3. Memory optimized: Fast performance for workloads that process large data sets

4. Accelerated Computing:

5. Storage Optimized: Great for storage-intensive tasks that require high, sequential read and write access to large data sets on local storage

6. Instance Features:

7. Measuring Instance Performance:

Security Groups:

1. Network security

2. Control traffic in and out of ec2 instances

3. only contain "allow" rules

4. Security group rules can reference by IP or by security group

5. Act as firewall on ec2 instances

Credits: Udemy course: https://www.udemy.com/course/aws-certified-cloud-practitioner-new/learn/lecture/20055658#overview

If you experience any kind of timeout while accessing any instance - there maybe an issue with security group rules.

That's all!