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Hello, everyone, and this listen, I'm going to explain and talk about containers and the structure

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of containers and why nowadays containers become so popular and preferred by many companies.

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OK, let's start with the question, what is a container image?

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Container images are like a static files that come with a system, library's dependency and other platform

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settings that are needed by the applications to run in isolated environments.

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So the main objective of content and images is that the isolated application run quickly from one computing

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environment or execution environment to another.

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However, these isolated applications share the underlying operating system.

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As we can see here in this diagram on the left side, this is the hierarchy structure of the one machine.

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We have the infrastructure, as we can see over here.

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Then what we have, we have the host operating system.

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Then we have the hypervisor, also known as a virtual machine manager.

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It's it's a software that creates a runs virtual machine.

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Then as we can see over here, we have the guest operating system.

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Then what we have we have the system, libraries, dependency on other platforms.

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Then we have the applications system like here we have this is one fish, one machine, and this is

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the second one machine and this is the third SR1 machine.

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Let's move on right now on the right side, this is the hierarchy structure of the container and we

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have infrastructure.

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Then we have the host operating system.

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Then we have the container changing and the container, the famous two container engine, our Putman

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and Dukkha, we will talk about them later.

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Then what we have, we have the system, libraries, dependancy and other platform settings.

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Then we have this is like the name of Damisch.

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So we have the first image here, the container image Ubuntu.

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Then we have the second one, dormice kill.

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This is the second image and the third one we have fedora.

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So as we can see here that we don't have a hypervisor in the hierarchy structure of the container.

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So these container images.

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So here are the container images that we have them here share the underlying operating system.

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Kurla, this is the operating system.

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Kerno with the main machine, so they share the same operating system, Covena, you can see here in

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one machine.

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So we have an operating system for the future, for the main system here.

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Then every or each virtual machine has an operating system.

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As we can see, this is the biggest operating system.

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So let's move out right now.

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So as I said here, we don't have a hypervisor here on the on the container.

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We only have a container images.

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And those container images, images shared the underlying operating system kernel with the main machine.

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These container images, as we can see over here, run at the top of the container engine.

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And this is the container injunct and the famous two.

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So what I I'm not going to say the famous two, but this is the two popular containing and Jinkx put

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man and Dukkha.

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We can't run either Butman or Dukkha to pull, run and manage container images so we can use either

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one of them in order to manage each container here.

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Container images.

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So he is the good man, good man here.

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This is about my command, so it's a red hat containing changing in the previous versions of Red Hat,

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real red hats used to support an offer also darker.

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However, in the new version, Real ID, Ducker is not flexible, a real ID and SINTA is it?

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So I don't suggest using Dukkha a real ID or Centa is it?

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You can run Dukkha.

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Command on other operating system, for example, Ubuntu or another Linux operating system, since we

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are using real ID and SINTA, is it we will to run and manage container imaging images using padman

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commands.

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So we're going to focus only on the Portman comment here.

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So the good thing about about padman that comes with many advanced features and is fully integrated

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with the system.

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Also, we can run container containers images without the need for a root user.

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So basically we can run content or images, those container images either with the root user or a rootless

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mute.

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So we don't need to use the like to be a root user in order to run these container images.

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That's conclude decision.

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Thank you.

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See you in the next lesson.