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In this video, we'll learn about Microsoft's Azure cloud computing platform, the difference between IaaS (Infrastructure as a Service) and PaaS (Platform as a Service), and Azure's App Service.
Try Azure App Service
Azure App Service is a cloud offering that integrates everything you need to quickly and easily build web and mobile apps for any platform or device. Enjoy a time-limited Azure App Service experience without a subscription, free of charge and commitment.
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[MUSIC]
0:00
Hi friends, I'm Scott Hanselman,
I work at Microsoft on ASP.NET Core and
0:04
open source .NET Core.
0:08
And I'm gonna show you Azure App Service,
and we're gonna talk about deploying or
0:10
publishing an ASP.NET Core
application to Azure.
0:15
Now there's a lot of stuff going on in
Azure and it can be kind of confusing.
0:18
So I'm gonna try to explain
the difference between when you hear PaaS,
0:22
Platform as a Service or IaaS,
Infrastructure as a Service.
0:26
You know, what is App Service?
0:31
How do you get a website
up into the cloud?
0:32
And, how is that different from just
setting up a virtual machine somewhere and
0:34
then publishing to that?
0:38
I also wanna point people
to try.azurewewbsites.net.
0:39
If you don't have an Azure account and
you're not really interested in doing
0:45
a trial but you still are interested
in following along or
0:48
trying out Azure App Service, you can do
it up there without a credit card and
0:52
it gives you a time-limited App Service.
0:55
Basically, it gives you a couple
of hours of App Service.
0:58
You can go in here, you can pick your Web
App, you can say I want ASP.NET Core 1.0,
1:01
pick Node, pick Java,
whatever makes you happy.
1:06
And then go and create that and
it will just let you sign in,
1:09
you can use your GitHub, use your Google+,
and will make you a little tiny free
1:12
website that you can then play with and
it'll expire in a couple of hours.
1:17
So it's a nice no money, no effort,
1:21
no commitment way to try
out Azure App Service.
1:23
All right, so let's do this.
1:26
I'm gonna just pop over
here to PowerPoint.
1:28
Cuz I know that we all love to see
PowerPoint when we're learning about code
1:30
but trust me, it'll be short and
it'll be worth it.
1:33
These are some of the things that
you get when you come to Azure.
1:36
This is the standard boxes and
lines dialog, boxes and
1:40
lines slides that people see.
1:44
Azure Storage, that's that global storage,
it's like a disk for everybody that's up
1:46
there in the Internet, is the base of
Azure, that where everything happens.
1:50
So when you make a virtual machine
in Azure, when you go into Azure and
1:55
you do File > New Virtual Machine, that
virtual machine gets stored somewhere,
1:58
it gets put in Azure Storage.
2:03
Now there are other boxes that
we're not gonna talk about,
2:05
we're gonna talk about web sites, right?
2:08
Azure App Service,
where you're gonna put your web site.
2:10
That of course sits on a virtual machine,
right?
2:13
A virtual machine has to be there always,
right?
2:17
And a virtual machine, of course, lives on
a physical machine that is, in this case
2:19
though, hidden from you by Azure, and your
disk is hidden from you by Azure Storage.
2:24
So there’s a series of kind of what
we call lies or layers of abstraction
2:30
between you and the real metal,
but that’s the magic of the cloud.
2:34
And that is really the difference between
a cloud-based host like Azure and
2:39
your more cheaper commodity hosting.
2:44
One way to look at it is,
2:48
if I use a host in my local city
I can visit my computer, right?
2:49
You could go and buy a cheap host and
then go downtown, find that computer,
2:55
and find the disk that
your site is running on.
3:00
You could say, show me my computer, and
they would take you into a data center and
3:03
point to it, and they'd say there it is.
3:08
That's nice because you can feel good
about your disk and you can see it, but
3:10
it's also bad because if that disk dies,
then your website goes down.
3:14
One of the great things about the cloud
is that Azure Storage is hiding all of
3:17
the complexities of the disk from you and
also doing what's called georeplication.
3:22
It's putting all of the bytes that you
put on a disk, in fact, on three disks.
3:27
Your site exists in three
places at all times, so
3:32
you're guaranteed not to lose your stuff.
3:35
That's a really important
aspect of publishing to Azure.
3:38
And it's one of the many ways that
it differs from commodity hosting.
3:40
So let's look at it a simpler way,
all right?
3:44
If I made a virtual machine on Azure,
I can really do anything I want to.
3:47
I could put .NET on it,
.NET Core like we're gonna do today.
3:51
But I could put anything,
cuz I own it, right?
3:54
It's like buying your own home.
3:57
You can do whatever crazy stuff
you want to inside your home and
3:59
that is your right, okay?
4:02
But you manage your home,
you own it, you manage it.
4:04
And if you do something stupid
that breaks the house, well,
4:08
you're gonna have to fix the house and
it's your fault.
4:10
It's not Azure's fault.
4:13
But some people, they want a more
of an Uber or a Airbnb style where,
4:15
you know I don't really wanna
think about my house or my car.
4:21
I just want a website.
4:23
It does limit you a little bit.
4:25
You can't do anything you want but you
can still do .NET and Node and Java and
4:27
PHP and Python and on and on.
4:31
But then Azure will manage the operating
system for you, manage all of the updates.
4:33
So if something comes out like a new
bad bug with a creative name, you don't
4:38
have to wake up in the middle of the night
and go and patch your virtual machine.
4:43
Just as if your roof starts leaking,
you don't have to get on the roof, right?
4:47
You're gonna go and
4:51
you're gonna call the landlord and
let them deal with that for you.
4:52
So that's another way that this
differs from commodity hosting,
4:54
is that Azure handles stuff for you.
4:58
You're a web developer,
not a homeowner, and
5:01
you'd really like just to think about
your web application and run it up there.
5:04
So let's do that and
see some of the secrets of how that works.
5:08
But also, let's remind ourselves that no
matter what we do up here in the web site
5:13
world, there is always a virtual
machine underneath us.
5:17
Just as when you rent a house,
5:21
there is a landlord out there that
has to think about that house.
5:22
So you'll be a better developer and
you'll be a smarter developer,
5:25
if you can live in both worlds and
understand that both worlds exist.
5:28
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