Kubernetes Kubernetes Gathering (Feb, 2015), 20 Mar 2015

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From YouTube: k8s on OpenStack - Craig Peters

Description

Recorded on Feburary 25th, 2015 at the Kubernetes Gathering in San Francisco, CA, USA

A

Hey thank you kit. I know I know that we're between all of us and some more drinks- and that includes me so my name is craig peters, I'm a product manager with mirantis and we are pureplay openstack vendor and with me here I have gosha and gosha is an architect and today what we're going to do is we're going to show you the work that we're doing to make sure that developers are as productive as possible and very quickly and we're doing this right now on openstack.

A

So for those of you who aren't familiar with openstack, I want to invite our colleague mark collier, who is with the openstack foundation, just to say a couple of words.

B

Thank you. uh This is mark collier from openstack foundation, and uh you know we have a lot of users if you're not familiar with openstack, who use the open source platform to build public and private clouds. And you know companies like walmart use it to run cyber monday, and you know comcast and best buy, and a lot of big companies are starting to adopt openstack and what we have found when we talk to them is that they actually integrate a lot of other open source projects in their clouds.

B

It's not just about openstack, and so you know, kubernetes is very interesting and I just want to say thank you to google for open sourcing it and love the apache 2 license. I think it makes it really easy for all these communities to to work together closely. So thank you for uh for doing that, and I want to turn it over to these guys to show you the demo what they built.

A

Great thanks, thank you mark, so for those of you who aren't familiar to openstack, I'm just going to do the 20 second version.

A

Essentially, it is a set of open source control, plane, apis, well-defined apis that are used, as mark indicated in production, to do all of that nasty dark stuff that, if you remember so long ago, craig mccluskey was talking about how developers don't want to worry about all that stuff and kubernetes takes care of everything above it essentially, openstack is the infrastructure that makes that stuff production on your premises with your own hardware, and it provides a set of apis that allow applications to run very robustly in distributed infrastructure.

A

So what we're going to show you today is work. We've done to enable running applications with kubernetes right now on openstack leveraging, an abstraction, that's a part of the openstack family of projects called murano. It's an application catalog that provides an abstraction so that very quickly and easily. You can expose new capabilities on openstack and run whatever application, whether you know it's, these monitoring applications and so forth, so we're going to get right to the demo. So, let's see if the demo guys are with us.

C

I crossed my fingers, so it should work.

C

Yep, so let me do this in a full screen. So right now you see actually the standard horizon dashboard and this is dashboard for openstack and as you see, I don't have a have any instances. So it's a clean, openstack cloud, so I'm going to murano application catalog and what I'm going to do, I'm going to actually create a kubernetes cluster from scratch. So I say this is my environment: I'm not very good with typing with this small phone net.

C

Yes, okay and you can think about environments as your multi-entire application and we have this catalog bar. So what I'm doing right now, I'm just adding a new cluster of kubernetes and saying that maximum number of nodes will be five. So it's five vms, but initially only two of them will be provisioned, and I specify that I would like to have medium size of my vms and just in case I would like to ssh to them.

C

I will specify my ssh key pair and actually at this stage we already can deploy this environment and we will have our cluster up and running. But, instead of doing that, I will show you two additional use cases which we have so, first of all, if I'm an application developer, who has only container so what I can do with that, so I can actually can use building blocks which we have in murano. So we have a kubernetes pod application.

C

So I will say that this my hp port, I would like to expose a container port to the host and instead of having a single port, I would like to replicate them. I can announce this port as a service. I will not do this and the next step will be just adding my docker http, which is just a docker image, so I'm adding it to the kubernetes pod, which exposes actually container service, and we also have an option to wrap actually kubernetes application and represent it as a application in application catalog.

C

So, for example, I will add my c advisor and as you see, there is no pods services. All this is actually hidden from the end user and once I click deploy, we should see status updates and you will see the actual deployment process.

A

So so go shows the essentially what you did. Is you configured a kubernetes cluster in an application to run in that cluster, just dragging and dropping.

C

A

Dealing here with the horizon user interfaces, which is really just a consumer of openstack apis right. Yes, so one of the things you can do is you can essentially consume these in any management, infrastructure and deployment infrastructure. You want and drive uh all kinds of processes you could do. uh The whole idea is it's self-service and uh it's very agile. It enables developers to leverage uh infrastructure inside our customers, environments on their own and without having specific knowledge of this infrastructure.

A

They're getting a a cluster that leverages all of the goodness of kubernetes and takes advantage of the beautiful things in openstack that automatically provision uh and deploy infrastructure without the developer having to be concerned about that.

C

Right so mourano is just an application catalog. So technically it does not provision any openstack resources. Instead, it actually generates a heat template and then heats, which is an orchestration engine for the openstack, uh make sure that all those uh resources which are required for for the application will be uh provisioned by the openstack.

A

Right so as it's doing that so heat is out there, you know creating virtual machines, making sure that kubernetes gets upset up, but it doesn't have any intelligence about networking right. Yes,.

C

Exactly so, network topology is actually associated with the application itself, because all applications are different and they have different requirements. So we have a workflow associated with kubernetes application, and this workflow actually defines what specific network uh resources should be allocated and what will be the topology and.

A

The beautiful thing is as a developer, you don't have to care about that at all. Right. You just say you. You can send a restful call to openstack, and you can request this, this kubernetes cluster and it will pass back the endpoint url and you can be off and running so right. Now we're also doing additional work. It's doing the docker pull and docker run on those images right.

C

Exactly so, we use standard docker hub, so we do not store any docker in images. So everything you see here is live and uses actual docker hub resources, and it's almost done so. It looks like that. The demo goes with us.

A

Yeah you'll notice that it's doing beautiful things for us like, for example, it's updating the security groups for c advisor. So it's putting network protection for us around this application, making sure that only authorized routes are available to it and you can use essentially the administrator for the cloud can take care of uh who's allowed to use which resources in which tenant.

C

Exactly so right now we're done and actually everybody likes to play with nice graphics. So we also have this. Oh my so we have to wait for the like. Wi-Fi is not that good, so we like downloading all images from our data center. It's real time, but- and this is like these three applications, so you can play with it while it's being deployed so.

B

A

C

Your time and right.

A

So it's a nice graphical representation of the thing that as a developer, I didn't have to know what was going on in the scenes. I just picked and choose the components I wanted and openstack went and created all of this.

C

Structure and really quickly, let me show you what is under the hood. So this is a list of heat resources which were generated and, as you see there are some complex networking, stuff floats and ipe routes. So that's, I'm sure, is not interesting for the developers, but for ic guys is pretty important and here's the network topology- and this is like horizon ui default graphical interface. So it's not miranda's work. It's open source open stack so.

A

What does it say? Is it's created the route here? Yes,.

C

So we have private network, so it's network isolation. In this network we have took two vms, which are our kubernetes cluster, and this network is attached to the router. So we have an access to the internet and our time is expired. So let me show the final nice graphics if it works. I hope so.

C

If you remember, I asked to deploy cc advisor, it's keep downloading this stuff, almost done so at least we see the title. So it's c c advisor yeah wi-fi is not.

A

Wow, the wi-fi is challenging here, so what we've seen here is that very quickly developers can provision their own infrastructure. They don't have to get it involved. They very quickly can connect to their infrastructure. It can make that available for developers to do their own thing on and it really speeds up development. So what the final thing I'd like to do here is to uh first I'd like to say I look forward to some discussion.

A

I hope we have a chance for a little bit of a panel discussion, but I want to invite you to take a look. We've published uh this code and a repo, so you can take a look at it where it's still in development, it'll be available for production use later this spring and and we invite you to sign up for more information on our site. Thank you.