---
title: Course Introduction
---

Compute on AWS
===
Compute services on AWS

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[toc]
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### AWS Compute Portfolio
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- Virtual Machines
- EC2
- Containers
- ECS
- EKS
- Serverless
- Lambda
- Fargate
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#### [EC2 Features and components](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EC2_GetStarted.html)

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- Image / Amazon Machine Images (AMIs)
- Instance type
- A key pair
- Security group(s)
- Amazon EBS volume(s)
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#### EC2 Nomenclature
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m5.xlarge --> m6.xlarge
m --> Instance family
5 --> Generation
xlarge --> Size (vCPU / Memory / network bandwidth)
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#### Recommendation Engines
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- AWS Compute Optimizer
- AWS Trusted Advisor
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#### Techniques to customise and install packages on instances
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- User Data
- AMI
- Infra-as-Code
- Config Management
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#### Class Activity 1:
**Please go to US-east-1 region before you perform the activities below:**
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- EC2 instance
- AMI (Amazon Machine Image) | amazon linux
- Instance Type | t3.micro
- Key Pair [Authentication using Public/private key pair] | create a new one
- Security Groups | create a new one with SSH, HTTPS and HTTP enabled
- EBS Volumes | leave the default values

- Connect to the instance using "EC2 instance Connect"
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#### Class activity 2:
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- Create a new security group which allows incoming SSH, HTTP and HTTPS
- Create a new instance with the security group (you just created) and providing the User data for web server installation and configuration
- User Data --> https://dontpad.com/userdata
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#### Class activity 3:
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**1. Make a few changes on your instance**
- create a file in any directory [~/ami-test.txt]
- install a few packages:
- sudo yum install git
- create a test user
- sudo useradd <username>

**2. Create an AMI from the instance**
- sudo yum install git
- sudo useradd <username>

**3. Create a new instance from the Custom AMI**

**4. Connect to the newly created instance and verify changes**

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#### EC2 Pricing Options
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- On demand
- Spot Instances
- unused capacity at AWS DCs avaialbel to customers at a discount of upto 90%
- 120 seconds
- Commitment based | 74% discount over on-demand | 1 or 3 year contract
- Reserved Instances
- Savings Plan
- hardware isolation
- Dedicated Instances
- Dedicated host
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#### Assignments:

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1. Complete both linux and windows EC2 modules in the following workshop:
- [Compute - Amazon EC2](https://catalog.workshops.aws/general-immersionday/en-US/basic-modules/10-ec2)
2. Lesson 03 - Demo 03 [Using IAM Roles to Access S3 Bucket] (modify the assignment)

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### References and Links
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- https://docs.aws.amazon.com/pdfs/whitepapers/latest/tagging-best-practices/tagging-best-practices.pdf
- https://catalog.workshops.aws/general-immersionday/en-US/basic-modules/10-ec2
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