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We just got a quick tour of some aspects of Cuban eddies and now as I mentioned at the end of last video

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I just want to highlight some really important pieces of terminology.

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We're going to be using some of these turns quite a bit throughout the rest of this course.

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So just what makes sure that's really clear what these mean.

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First off what does a Cuban 80s cluster.

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It's a collection of nodes plus a master to manage all those different nodes effectively.

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It's the entire set of infrastructure that's going to run our code within mind.

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What's a node a node is a virtual machine that's going to run all the different containers that we throw

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at our communities cluster a single cluster might have many many nodes assigned to it.

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It might only have one node.

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So right now on our local computer we are running a Cuban 80s cluster and by default it has just one

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node.

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But as we start to deploy our application we might want to start to run multiple many maybe three ten

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a thousand different nodes next step was a pod remember a pod for you and I.

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In the context of this course we were going to kind of use the term pod and container interchangeably.

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Technically they are absolutely not the same thing technically a pod is something that kind of wraps

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up a container and a pod can wrap up multiple different containers together but we're not going to do

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that inside this course.

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So for you and I there's really a one to one mapping between pods and containers.

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So we're probably just going to up using these terms rather interchangeably.

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Next up was a deployment deployments are going to monitor a set of identical pods or pods that are meant

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to run the same container inside them.

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If anything ever happens to those pods.

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So for example if the pod crashes or just stops running for any reason the deployment is going to see

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that in automatically restart that pod for us.

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And then finally a service and this is probably gonna be one of the most confusing terms that we're

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going to run into because we are in a course about micro services.

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We are creating services that are programs but then we're also creating services in communities that

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are something totally different.

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So remember a Cuba Nettie service is something that provides a very easy to remember your l so that

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other running pods or containers inside of our cluster can very easily access another pod.

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There are several different types of services and we're going to highlight and explore these different

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types in due time.

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I'm going to apologize right now because there's probably gonna be a lot of confusion as you move forward

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when I can use the word service and you're gonna say wait like our application service or the community

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service or what service you're talking about.

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So just remember when you hear me say service it's always in the context of either Cuban natives or

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some actual program that you and I are trying to run create and develop.

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All right.

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So again just quick reminder on these piece of terminology.

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So all that mind you can take a quick pause right now and then as I've said two or three times now we're

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gonna start to implement the flow that we just discussed in the next video.