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  • TONY VOELLM: I head up the Google Cloud Security

  • Performance and Test Team.

  • I've been working on Cloud for over two

  • years now up in Seattle.

  • And don't let my title fool you.

  • It says "Engineering Manager," but managers

  • at Google are different.

  • I really do get my hands down in the code.

  • In fact, I checked something in last week, and about five

  • minutes later, somebody on my team fixed it and checked it

  • in again, so.

  • [LAUGHTER]

  • TONY VOELLM: I've done a bunch for Cloud.

  • Some of the things that are externally visible for Cloud

  • is I created the Google Compute Engine Units--

  • GCEUs.

  • And we'll talk more about what Google

  • Compute Engine is later.

  • Being the engineer I am, I thought, wow, GCEU, it's

  • really cool.

  • We should call that GQs, because who doesn't want GQs--

  • or, which engineer doesn't want to be GQ.

  • And now you know why I'm an engineer.

  • OK, great.

  • So here's what we're going to do.

  • We're going to talk about cloud computing.

  • So I'm going to take a quick step back, talk a little bit

  • about what cloud computing is.

  • I'll take you through some history about how we got to

  • where we are today in 2013.

  • This is a history of cloud computing.

  • Then I will definitely take you through the Google Cloud.

  • I'll give you pivots of what the Google Cloud looks like,

  • how we think about it, how the industry thinks about it.

  • I'll run through a series of demos.

  • And then, to prove I'm an engineer, I'm going to take

  • you through the pitfalls.

  • And this is how you know I'm not a marketing person,

  • because a, my slides are not pretty; and b, I'm going to

  • tell you why things may not work for you

  • from time to time.

  • And in the end, I'll just wrap it up with

  • the Team and questions.

  • So with that, let's dive in.

  • So what is cloud computing?

  • It's a good question.

  • I had this question two years ago.

  • And in fact, I probably still have this question today.

  • But one of things that I did to try to figure out what this

  • industry is, is I started looking different places.

  • I go do web research, Google search.

  • I looked up at How Stuff Works, and they had a really

  • interesting definition.

  • They talk about remote machines owned by another

  • company, and like maybe your email and word processing

  • would be out there.

  • And this seems like a really dated definition, but it's

  • actually still fairly accurate.

  • I did things like go out to conferences, because there are

  • several conferences that happen throughout the year

  • around cloud computing.

  • And in there, you'll see interesting terms, like Hadoop

  • elastic environments, grid software--

  • there's all these terms that start to pop up.

  • I even went out and started to survey my peers at Google,

  • like, what do you think cloud computing is?

  • And you can see down here, they start talking about, oh,

  • it's this computation that you can do in the cloud.

  • You don't have to worry about stuff.

  • So what I did is I said, OK, well, with any definition,

  • let's pull together the properties of cloud computing,

  • because there's certain things we're hearing often in these

  • definitions.

  • You know, one was nothing--

  • nobody cares where it is.

  • Everything's accessed over a network.

  • So cloud computing is something that

  • happens in the network.

  • That's sort of like the beginning of what cloud

  • computing is.

  • The second part is a really important

  • part, which is utility.

  • You can turn it on or off.

  • You pay for what you use.

  • And when it's not on, you turn it off.

  • It's like a light switch.

  • So if I want a database now, I have a database.

  • And if I don't want a database in five minutes from now, I

  • turn it off, and I'm not paying for it.

  • There's an elastic component where resources grow and

  • shrink on demand.

  • And you've seen this many times across like YouTube

  • scalability.

  • We broadcast the Olympics.

  • And whether one user is watching, or 8 million users

  • are watching, it all seems to work.

  • And so there's this elastic component on the cloud that.

  • grows and shrinks on demand.

  • For sure, it's programmable.

  • Programability is an important aspect of Cloud.

  • And then access control models.

  • So here's where there's some pieces we'll talk about later,

  • where like software as a service, versus you developing

  • your own code.

  • And platform and infrastructure as a service

  • layers, where access models are different.

  • There's some models where the end user owns the control, and

  • there's some where the person providing the

  • service owns the control.

  • But there's some method of controlling

  • access to data and resources.

  • And while not required, there's this thing that often

  • comes up, which is multi-tenant.

  • Your workloads run side-by-side

  • with somebody else's.

  • Some companies, this can be concerning--

  • why is Company A and Company B running on the same server?

  • We're competitors.

  • We don't want our data anywhere near each other.

  • And it's really the cloud providers that create this

  • partition or this barrier between those workloads.

  • So there's no flow of data from one to the other.

  • And this is called multi-tenancy.

  • So I tried to be really smart.

  • I'm like, OK, that sounds really good.

  • So let me give a definition of cloud computing that tries to

  • roll in all these sources of information.

  • And my definition is it's a set of programmable resources

  • that's pay-per-use.

  • It happens over a network.

  • It's elastic.

  • And it removes the developer from having to worry about the

  • hardware resources, the operating system, or all these

  • minutias that she doesn't want to worry about.

  • And she can just focus on delivering the application

  • that she wants.

  • And it's there, and it grows and shrinks on demand.

  • So that's my definition.

  • So that's cloud computing in a nutshell.

  • So here's a little mini-quiz.

  • So I'll just take a quick show hands.

  • I'm only going to go through a couple of questions to see if

  • things are already resonating with everybody here.

  • So is Gmail cloud computing?

  • Yes.

  • It could depend on perspective.

  • One perspective is Gmail is a hosted software service that

  • companies can buy.

  • You can buy Gmail.

  • And for some nominal fee per month, you can host your

  • mailbox there.

  • So on the upper end of software as a service--

  • this is where Google started--

  • yes, Gmail, I would say, is cloud computing.

  • Now what about hosting Python applications.

  • Is that--

  • show of hands-- is that cloud computing?

  • Yes.

  • Yeah, it has the programmable aspect we talked about.

  • It's elastic.

  • This is where Google App Engine enters the picture.

  • Here, let's try one more.

  • Are physical servers hosted by a hoster--

  • is that cloud computing?

  • Yeah, it depends.

  • Yeah, this is the one that gets sort of tricky is--

  • if you can on demand request these servers, and have them

  • go away on demand, then you sort of enter into the cloud

  • computing, versus just pure hosting.

  • We tried this whole thing in the '90s called application

  • hosting and server hosting.

  • And so, what's different today is this

  • whole elastic component.

  • And you might be thinking already, like,

  • why is all this important?

  • Why is this definition of cloud computing important?

  • And so I asked that question, too, actually.