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[Intro Music]

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Alright guys, let's now start from

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scratch, and let's download the

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first image from Docker Hub. Recap

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the Docker Hub is a Docker Registry

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that hosts Docker Repositories. And

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Docker Repository is a set of

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images with different versions. All

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right, we will use 'docker pull'

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command in order to download image

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from Docker Hub. Please note that

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there is alternative version for

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this command with Management

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Command, that is 'docker image pull'.

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And first let's open up Docker Hub

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page, and let's find here image

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called 'hello-world'. Type 'hello-world';

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and here is this image on the

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list, please click on it.

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[no audio]

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On this page, you'll see details about this

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image, and here is the command that

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you're able to use in order to pull

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this image from Docker Hub to your

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local cache. Notice that this is

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the most simple image available and

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basically it is useless and all

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what it does, it simply prints

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block of text to terminal, that's

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all. Alright, let's now use 'docker

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pull' command in order to pull this

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'hello-world' image. Let me go to

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terminal, verify that at the moment

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there are no images in my local

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cache, and now let's use 'docker

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pull' command, and type here name of

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the image, 'hello-world', like

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this. Using default tag: latest.

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Pulling from library/hello-world

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Pulling FS layer. Pull complete. Here

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is sha256 Digest for this

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particular image. And, Status:

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Downloaded newer image for hello-

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world:latest. And now if I

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check images in my local cache, I

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should see hello-world image on the

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list. In this output I see

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REPOSITORY name - hello-world, I see

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TAG - latest, IMAGE ID here is this

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ID. Notice that this ID is a short

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version of long ID of this image.

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Next I see when this image was

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created, date is 4 months ago; and

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the SIZE is only 13 kilobytes. It

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is the most smallest image

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available. Alright, let's now try

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to pull another image using same

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command 'docker pull, but probably

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let's use 'docker image pull' command

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in order to show you that this

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command is actually an alternative

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version for 'docker pull' command

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'docker image pull', and let's pull

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for example 'busybox' image, it is

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another popular small image. Let's

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press Enter. Again same output -

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Using default tag: latest.

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Pulling from library/busybox. Pull

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complete. Digest. Downloaded newer

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image for busybox:latest. And now

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if I will enter 'docker images'

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command, I will see two images in

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my local cache. And please notice

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that size of busybox image is a bit

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more than one megabyte. It is of

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course larger than the heloo-world

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image, but anyway it is really,

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really small. This how we were able

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to download images from Docker Hub.

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And please notice that we were not

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prompted to enter any user name or

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password., and that's because Docker

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Hub is free for use to anybody, and

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you are able to download the

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official images like busybox, hello-

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world without any credentials.

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Alright, that's all for this short

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lecture where I have shown you how

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you're able to get images to pull

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images from Docker Hub. Next, let

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me explain you structure of the

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image and explain you why here we

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have seen messages like Pooling FS

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layer, and afterwards you have seen

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message, Pull complete. Let's talk

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about it in the next lecture. I'll

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see you there. Bye-Bye.

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[no audio]