SystemMen - This article will show you how to search for a container image. Thereby you will get the image you need to launch the container.
First, I have to talk about Docker Hub. This is a huge Docker library, it contains image containers here and allows you to download.
Docker Hub is a place for you to manage your image containers (or the team). It allows you to create images, upload and download images.
Temporarily, we’re not going to talk about how to create and upload images to Docker Hub, but we just stop figuring out how to find an image we need to use.
Search directly on the Docker Hub website
Okey, now you know the Docker Hub library. We will have the first way to go directly to the website and search for the image we need.
For example, I need a CentOS image, I will type
centos in the search box on the website.
As a result, notice that the images are labeled
OFFICIAL IMAGE. These are genuine images for all users. You should use it because it ensures clean images, does not contain underground viruses.
Here, I click on the first result, centos official image. Next I need to select the tag. You can understand the tag here is the different versions of the image that the provider creates. For example: centos 6, centos 7, … if you don’t know the version, you can choose latest.
For example, here I will choose CentOS with the tag of 7.6.1810. And now, look to the right of the screen, you will see the following command:
docker pull centos
This is the command to download the image to your computer. Now type that command and include the selected tag.
docker pull centos:7.6.1810
Search through the docker command
There is another way you can find the images you need, no need to visit the website. That is to use the docker command.
Docker has a
search command that allows you to search for images directly from Docker Hub.
Type the search image centos command as follows.
docker search centos
And the result will show up as follows.
Now, you can also use the pull command to download the image you need to your computer.
docker pull centos:7.6.1810
Look like this.
root@linux:~# docker pull centos:7.6.1810 7.6.1810: Pulling from library/centos ac9208207ada: Pull complete Digest: sha256:6ae4cddb2b37f889afd576a17a5286b311dcbf10a904409670827f6f9b50065e Status: Downloaded newer image for centos:7.6.1810
Check the downloaded image
Now you can check the images that you downloaded to the computer using the command below.
root@linux:~# docker image list REPOSITORY TAG IMAGE ID CREATED SIZE centos 7.6.1810 f1cb7c7d58b7 6 weeks ago 202MB centos 7 9f38484d220f 6 weeks ago 202MB ubuntu 16.04 7e87e2b3bf7a 3 months ago 117MB
So you have successfully downloaded image centos 7.6.1810 on your device.
In this article, there is no difficult technique. It is simply a tutorial that shows you how to find the image container you need. This is the first step you need to learn, you can’t create the necessary containers if you don’t know how to find the image.If you liked this article, then please subscribe to our YouTube Channel for more video tutorials. You can also find us on Twitter and Facebook.
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