- Now let's take a look how infrastructure
as a service works.
And for this we'll be using Amazon web services
known as AWS to launch a virtual as machine.
This is a common task and something that you might do
whenever you need to create a web server.
What you're seeing here is the AWS dashboard.
From here we simply select launch instance
under the label marked create instance.
What we're doing is actually reserving resources
on AWS's infrastructure as a service cloud.
In this case, a compute instance
which is a virtual server launched
within Amazon web services.
Keep in mind that this is not a physical machine instance,
but a logical one.
For a quick demonstration of an infrastructure
as a service system,
we're going to launch an Amazon EC2 instance
which is a virtual server running on the AWS cloud.
Next, we're going to configure that EC2 instance
for our use.
Then finally, we're going to connect to that instance.
Next, we need to select the type of machine image
to leverage.
Note that AWS provides a few pre-built image types
that are really operating system platforms
running on particular types of processors, such as 64 bit.
This is very much like going to a computer store
and buying a physical server and having the server
configured for you for a specific need.
In the list here,
you'll see several popular platform configurations.
Including, Linux and Windows.
AWS provides a wide range of instance types
to fit your specific needs.
Note that you can select the number of CPU's
and their memory size.
Each type comes at a different price point.
So make sure you don't overbuy, you'll spend too much money.
Or under buy meaning your applications
won't have enough resources to perform well.
Now that we've selected the machine image type
and instance type, we can review our instance here.
If everything looks good,
we can move to the launch screen using the button
at the bottom right side.
Now, what we've all been waiting for.
Let's launch our instance.
Note that there is a public IP address that allows
those on the outside to connect to the EC2 instance.
There are other descriptors there as well that you can note.
In the terminal screen,
we can connect to the instance we just created.
This is not unlike connecting to a traditional server
over the internet or over your local network.
And, that is really the idea of public infrastructure
as a service cloud to provide you with an alternative
to leveraging your own servers.
Once connected,
you're ready to leverage that machine instance
for whatever purpose that will serve your needs.