This document provides an overview of public cloud computing and Amazon Web Services (AWS), covering key concepts such as service models (IaaS, PaaS, SaaS), virtualization, and AWS ecosystem components. It emphasizes AWS's competitive edge, including its extensive compute capacity and global reach, along with practical information on launching and managing AWS instances, security features, and the AWS marketplace. Additionally, it discusses the benefits of using cloud services, such as on-demand access, pay-as-you-go pricing, and scalability.

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Getting Started with Public
Cloud and AWS
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@RyanKoop
CohesiveFT

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• Level Set: Cloud &Virtualization Basics
• Working together: AWS ecosystems
• AWS Core: Terminology & references
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Public cloud computing
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The NIST definition of cloud is....
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Layer 0
Layer 4
Layer 3
Layer 2
Layer 1
Layer 5
Layer 7
Layer 6
“_______ as a Service”
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Software
Commercial software access
SaaS
Platform
Information, messaging,
connectivity, integration
services access
PaaS
Infrastructure
Servers, network devices and
storage disks
IaaS

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IaaS Public Cloud
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Virtualization | On-Demand | Elastic | Internet

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Virtualization
Cloud Provider OS/Hypervisor
Server Hardware
AMI bins/
libs
bins/
libs
bins/
libs
Guest
OS
Guest
OS
Guest
OS
App
Stack
App
Stack
App
Stack
VM

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On-Demand
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source: imsa.edusource: theweightofdebt.com
NOThourly pricing capital expense

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Elastic
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source: http://aws.amazon.com/blogs/aws/animoto---scali/

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Internet
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Cloud DB Cloud Server
Hypervisor
Workstations
Clients OR Users
Internet
provider user

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Public Cloud: the Zipcar of Computing
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Cloud Computing and Zipcar are:
• On-demand
• Self-service
• Flexible & easy to use
• Shared resources
• Pay-as-you-go pricing
• Creating new ways to use and connect resources
SaaSSaaS
Images: Wikipedia

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Why AWS?
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Cloud Logo Cloud
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AWS & Cloud Provides Global Reach
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Region
Availability Zone

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Cloud Providers
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AWS offers 5x the compute
capacity of next 14 cloud providers
in the Gartner Magic Quadrant,
combined.
!
Analysts estimate AWS’ sales
around $1.2 billion for Qi 2014, up
from $750 million in Q1 2013 2
1. Gartner -Toolkit: Comparison Matrix for Cloud Infrastructure as a Service Providers,
2013 https://www.gartner.com/doc/2575815

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AWS ecosystem
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AWS Cloud
AWS Marketplace
CohesiveFTVNS3
networking product

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AWS Marketplace
In AWS, you can
launch an instance
from community or
marketplace AMIs
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This is an AWS UG
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Crack the AWS code
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AWS Service Catalog
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Amazon Web Services Offerings (Console)
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More information at aws.amazon.com/console

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AWS Regions & Availability Zones
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Each region is a separate geographic area. Each region has multiple,
isolated locations known as Availability Zones. Choose specific regions to:
• Optimize latency
• Address regulatory requirements
• Create a point-of-presence (POP)
Internet Availability
Zone
Servers
Region: US East
Servers
Availability
Zone
Availability
Zone
Servers
Region: US West
Servers
Availability
Zone

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AMIs
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Applications
Operating
system
Application
Server
Amazon
Instance
AMI
Amazon Machine Image (AMI) - template to
launch an Amazon EC2 instance with your
software
!
• Main component is a read-only filesystem containing
an operating system & additional software
!
• Compressed, encrypted, & uploaded into AWS S3 for
storage or as a volume in AWS EBS
!
• Run multiple instances from the same AMI

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Image & Instance
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Image - template to launch an Amazon EC2 instance with your software
!
Instance - the AWS name for a server / virtual machine
Image
Detailed information can be found at: http://docs.amazonwebservices.com/AWSEC2/latest/UserGuide/instance-types.html
Instance

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EBS-BackedInstance Store-Backed
Two Kinds of AMI Storage
• Boot in <5mins
• Limited to 10GB*
• Data on instance only
persists during the life of
the instance
• Instance attributes are fixed
for the life of the instance
• Cheaper only charged
runtime
• Boot in <1min
• Limited to 1TB
• Data persists after instance
termination
• Stop to change instance
settings
• Pay for runtime & storage
• All AWS Marketplace AMIs
are EBS-backed
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Using an Instance
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• Launching an instance: creating a virtual machine with
the specifications you provide.
!
• Terminating = destroying it, forever.
!
• Stopping = pausing. No data is lost and while stopped
you aren’t being charged.
!
• Starting = un-pausing.Your data should still be there.

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Security Groups
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Security Groups
• Acts as a firewall that controls the
traffic allowed into a group of
instances
!
• Add rules that govern inbound traffic;
can add or modify rules at any time
!
• Cannot map security groups across
regions
Rules
• Specify a certain protocol (TCP, UDP or ICMP)
• Specify destination port or ports (if the protocol isTCP or UDP)
• Specify source (IP address or addresses using CIDR notation*)
*combination of IP addresses represented by xxx.xxx.xxx.xxx/n where n is the number of 1 bits in the mask.
Example 192.168.12.0/23 represents address range 192.168.12.0- 192.168.13.255

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IP Addresses
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Elastic IP Address (Static IP address):
• Associated with account, rather than a particular instance
• If your instance fails, can map its replacement to the same IP address
• Each account is limited to 5 elastic IP addresses
•You are charged $.01/hr when these IP addresses are not mapped to an instance
Amazon
Instance
Amazon
Instance
204.236.202.134 63.250.226.146
Amazon
Instance
Amazon
Instance
204.236.202.134 204.236.202.134
Amazon randomly assigns public IP addresses Assign instances with your Elastic IP Address

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VPC
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Logically isolated section of the
AWS Cloud -VLANs
•Control ofVirtual Network
!
•More Layers of Security (SG and
Network ACLs)
!
•Public and/or Private Subnets

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Getting Started
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AWS FreeTier
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http://aws.amazon.com/free/

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AWS Marketplace
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https://aws.amazon.com/marketplace

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Public Images
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https://console.aws.amazon.com/

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Google Search
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AWS UG Buddies
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start with the organizers...