WEBVTT

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Narrator: In the last section, we spoke about the series

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of steps that we're going to go through to

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get our first container up and running on Kubernetes.

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So the first thing we're going to do is double

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check docker hub and just make sure

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that our image is up there for the multi-client image.

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All right, so to get started, I'm gonna open

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up a new browser tab and I'll navigate to hub.docker.com.

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And once over here, I'll look

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at my list of repositories and just verify,

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yep, my image is up here.

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Stephen Grider \ multi-client.

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This is the repository that contains the image

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that we want to create a new container

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out of on our local Kubernetes cluster.

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Okay, that was easy enough.

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So I'm gonna close that tab

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and we're now gonna move on to our second task

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which is to make a 1config file to create our container.

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Now, to make this config file

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we're going to create a new project directory,

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we're going to open up our code editor

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inside that project directory,

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and then we're gonna start writing a little bit

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of configuration into it.

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All right, so I'm going to flip on over to my terminal.

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You'll notice that I'm back inside of a

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workspace directory of sorts.

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So, I'm no longer inside of that complex folder

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that we had been working in previously.

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Out here, I'm gonna make a new folder called

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Simple K8s.

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The term K8s is a little abbreviation

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for the word Kubernetes

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and you'll very frequently see the word K8s

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in place of Kubernetes in a lot, a lot of documentation.

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The 8 in there is meant to represent the 8 letters

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between K and S in the word Kubernetes.

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Okay, so I'm gonna make that directory.

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I'll then change into it

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eventually.

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There we go.

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And then I'm gonna start up my code editor

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inside that directory.

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All right, there we go.

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So, now inside of here

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we're going to make a configuration file.

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And remember, the ultimate goal

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of this file is to create our container

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inside of our local Kubernetes cluster.

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So inside my code editor

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I'm gonna make a new file called client-pod.yml.

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And then inside of here, we're going to list

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out a little bit of configuration to create our container.

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Now, I'll be completely honest with you,

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I wanna be like as transparent as I possibly can,

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these first dozen or half dozen videos

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on the topic of Kubernetes,

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this is the fifth time that I've gone through

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and recorded all this stuff.

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So I've recorded four times already

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and deleted everything cause I just wasn't happy with it.

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So in this try or this run through of recording this stuff

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we're gonna do things just a little bit differently.

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We're gonna write out all the configuration inside this file

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and we're going to write out all the configuration

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inside that second configuration file as well.

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And then once you see all this configuration

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in front of you

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we're then going to do a real big discussion and talk

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about exactly what every line of this configuration means.

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Now, like I said, kind of gone and recorded this stuff

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like four times and I'm convinced that

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writing stuff out is probably the best way

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to you expose to this.

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So, the good news is

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we're gonna learn exactly what's going on

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inside these two configuration files.

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The bad news is

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that you and I are gonna do

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a pretty good amount of typing right now.

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So as usual, I gotta ask you

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please, triple check your spacing.

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Triple check your spelling.

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Make sure you got everything dead accurate, the same as I.

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Otherwise you're gonna run into a a little bit of issues

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down the road.

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Okay, so let's get to it.

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Inside of here, I'm gonna first type out

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API version:v1

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I'll do kind pod,

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I'll do metadata,

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and then I'll do an indent

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and say name is client-pod.

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I'll say labels,

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and then I'll indent another line

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and do component:web.

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Then now I'm going to go all the way back out.

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So, no more indentation.

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I'll say spec containers.

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And then I'll do a - to indicate an entry inside

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env and array.

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I'll say name client

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image of your docker ID.

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So Stephen Grider for me, \ multi-client, like so.

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Now remember when we put in this image name right here

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that is assuming that our image is up on docker hub.

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If your image, for whatever reason,

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for multi-client is not on docker hub

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you can always make use of my image name, which is

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or excuse me, my docker ID, which is Stephen Grider.

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I'll then list off my ports that I want to open up

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for connecting to from the outside world, just

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as we did before over inside of our docker composed file.

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I'm gonna have a single entry here

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and I'll say, container port is 3000, like so.

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Okay, so that's our first configuration file.

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Now, again, I gotta ask you,

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please, just, I'm begging you,

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triple check your indentation.

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Triple check your spelling on what you have.

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And once you're happy,

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we're going to create one other configuration file.

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That's gonna do a little bit of networking setup for us

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and make sure that the container that we're creating

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with the first configuration file

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will be exposed or available to the outside world.

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So inside my code editor, I'm gonna make another file.

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I'm gonna call this one client-node-port.yml.

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Okay. And then inside of here, we're just gonna do

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a little bit more typing and then we'll talk

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about what all this stuff is doing in

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more detail than you could ever possibly imagine.

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It will be great.

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Okay, so inside the new file, we'll say API version is v1.

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I'll say kind is service.

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We'll do metadata.

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I'll give a name of client-node-port.

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Then I'm going to un-indent.

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So I'm all the way back out to the left hand side

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and I'll say spec with a type of node port.

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We'll do a port's array.

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So I'll do an entry in the array

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indicated by this little - right here.

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And I'll say Port is 30, 50.

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I'll do a target port of 3000

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and I'll say node port of 31, 515, like so.

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And then finally I'm going to un-indent.

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So I'm back online with type and ports.

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And then I'll say selector is component:web.

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And I'll save the file.

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Now again, I gotta ask you, please, please, please,

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triple check your spelling inside of here,

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triple check the indentation.

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Remember inside of a .yml file

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if your indentation is not perfect

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the file will be misinterpreted

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and nothing is gonna work the way you expect.

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Okay, so that's all the typing we gotta do.

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Now we're gonna take a quick pause right here.

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We're gonna come back the next section and we're

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gonna go over both these files in just

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tremendous detail.

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So, quick pause and I'll see you in just a minute.