In this MOOC, we will learn Cloud Computing basics using AWS as an example, We will guide you to create AWS account, planning AWS resources for your cloud systems, create AWS EC2 instances, access them and configure the popular LAMP web services with MySQL database. We will guide you to create user accounts for your programmer or operators using AWS Identify and Access management GUI, Register your domain name and setup DNS entry for your servers using AWS Route 53 in 22 mintues! and show you how to use AWS Command Line interface to create and managing instances and services programmatically. We then introduce AWS Load balancing feature, create load balancing cluster for scalability and reliability. We also demonstrate how to diagnose the problem introduced by the health check and firewall restriction conflicts. By the end of this course, you should be able to create your own web cluster with mysql databases, setup your users with credentials to manage your AWS resources/virtual machines either through their management control interface or using AWS CLI API using scripts. You will also learn the best practice in cloud security and debugging service interaction issues may arise in the cloud systems.
AWS Cloud EC2 Service
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From the course by University of Colorado System
Cloud Computing Security
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From the lesson
Cloud Computing Basics
In this module, we learn about the basics of cloud computing using AWS EC2 as an example, including the resources provided by the public cloud, the pricing structures related to the resource usages in computing, storage, and networking services, and their trade-offs, the basic operations of setting up account.
Meet the Instructors
Edward ChowProfessor
Computer Science
In this lesson, we introduce AWS Global Infrastructure with
worldwide 18 region and 54 availability zones,
present the AWS Elastic Cloud Computing Services
and the so-called EC2 services for cloning,
configuring, and securing virtual machine instance.
We will discuss the elastic concepts for adaptive processing capability and phase ball,
storage backup, and dynamically allocate IP address for these virtual machines.
We will describe the security services provided by
AWS EC2 including firewall and try with VPC,
Virtual Private Cloud for protecting and isolating virtual instance.
At the end, we'll discuss the cost performance trade off for different pricing scheme.
AWS, as cloud operates 42 available zones within 16 geographic region around the world,
with announced plan to provide eight more,
our very zone and three more region.
Agreement with Beijing and Ningxia were actually signed December 2013 which
is more than three years ago and so
it actually takes some time to build these data center and make it operational.
The Ningxia location in China is colder in the winter,
cooler in the summer.
So, you use less air condition and has a lowest utility heat ray within the region.
The worst choice of region in AWS,
allow an organization to choose hosting server close to their customer.
Even though the content area near Nijar watcher as Akamai has more than 30,000 in
cash server location but AWS data center
allows a customer to customize their virtual machines,
running the one package, and hosting there.
For Amazon EC2, you select a pre-configured,
templated image to get up and running immediately,
or you can create an Amazon Machine Images with
your own customized package including customized application,
customized library, data for cloning.
Configure security, you can configure
security and network access on your Amazon EC2 instance,
very easy with some gooey in the face.
Choosing which instance type, big, small,
and operating system Windows, Linux, you want,
you can also bring your own license and then start, terminate,
monitor as many instances on your Amazon Image as needed,
and you can using web service API,
using Java or postscript to probably control the star and star up some services of
this instance and maybe shut them down in a 24/7 kind
of rotating basis so that you can managing your instance in a program manner.
Determine whether you want to run in multiple locations and utilize
static IP address endpoint and attach
persistent block storage they call elastic storage for your instance.
So that they are backed up regularly.
Pay only the resources that you actually consumes,
like instance-per hour or data transfer.
They can also provide you with a scalability,
a scale you're processing.
Elastic computing.
Actually, EC2 stands for Elastic Computing Cloud,
E-C-2, two C there.
Enable you to increase or decrease the capacity within minutes,
not hours or day.
You can commission one,
or hundreds or even thousands of server instance simultaneously.
You control the web service API,
this instance an occasion can automate
scale themselves up and down depending on the incoming traffic.
Elastic Block Storage allows you to back up
automatically on local disk and allow you to have some free space for computing.
Local disk is not a backup.
Elastic IP address, which is a very interesting concept,
they can give you an IP address or sign or tie into an instance dynamically.
So, is not giving you a static IP address all the time.
The interesting thing here is the charging scheme of elastic IP address,
you are charged when not using it.
So, let's say you start your watcher instance for an hour then you shut it down,
the remaining 16 hour for the day you will be charged with elastic IP address using that.
But at the same time you are not charging for the computer utilization of your instance.
Programmatically we can remap those public IP address to any instance in your account.
So, maybe for maintenance reason you shut down one instance,
bring up another one,
and then you remap the IP address.
It has to be aggregated through the new instance while you maintain the other.
EC2 security.
Amazon EC2 including web service interface
to allow you gooey interface will allow you to configure the firewall setting.
You can specify for a port to open what IP address now to access that from the Internet.
That control will enable access to and between the group of instance.
When launching the Amazon EC2 resources within Amazon Virtual Private Cloud,
they call Amazon VPC,
you can actually isolate your computer instance by
specifying the IP address range which is
typically using the private IP range address you want to use,
and then connect your existing IT infrastructure using
the industry-standard encrypted IPsec VPN.
So that you can connect inside but nobody can contact them from outside.
You can also choose to launching a Dedicated Instance into your VPC.
The dedicated instance are Amazon EC2 instance that run on
hardware dedicated to a single customer for additional isolation.
Cost saving consideration for AWS.
There are quite a different type of cost pricing structure.
On-Demand instance.
On-demand instance means that you pay for
compute capacity by the hour with no long-term commitment.
This frees you from the costs and complexity of planning, purchasing,
and maintaining hardware and transforms what are
the commonly large fixed costs into much more smaller variable costs.
The other type of pricing is reserved instance.
Reserved instance give you the option of making low,
one-time payment for each instance you want to reserve and in return you will charge with
much smaller price per hour or
give you a significant discount on the hourly charge for that instance.
The third pricing scheme is spot instance.
You basic like a beating kind of war,
you say let it be for some instance and end if
nobody using that instance in computing resources,
you'll keep it very cheap,
some cents an hour.Spot instance allow customers to bid on
the unused Amazon EC2 capacity and run on
those instances for as long as their bid exceeds the current Spot Price.
Signing a long-term lease with reserve instance is typically cheaper.
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