Docker 2

Please follows the Part1, Part2, Part 3, Part 4  before reading this.

https://dotnetbyudayrajakonda.blogspot.com/2023/11/introduction-to-azure-dev-ops.html

https://dotnetbyudayrajakonda.blogspot.com/2023/11/ms-azure-part-2.html

https://dotnetbyudayrajakonda.blogspot.com/2023/11/ms-azure-part-3.html

https://dotnetbyudayrajakonda.blogspot.com/2023/11/ms-azure-part-4.html

Now, we need to switch the user. So that i want to install Docker with root user. So i am going to run the below command

ubuntu@ip-172-31-15-245:~$ sudo su-

1. $ apt-get update  

Now, I am going to run the next command

apt-get install docker.io -y

Command to clear the screen is clear

history is the command , which will tell you what all the command which have been run  today.

Example

To check if the docker is installed or not, below is the command

root@ip-172-31-15-245:~# docker --version

Docker version 24.0.5, build 24.0.5-0ubuntu1~20.04.1

root@ip-172-31-15-245:~#

To check the status of instance, which we have created in the aws cloud with the name docker. Below is the command to check the status

service docker status

Note:

dockerd is docker daemon

If, it is not started, then you say

service docker start

If you type the command as 

docker version

Then you will be able to see the client and the service

We can also use 

root@ip-172-31-15-245:~# docker -v

Docker version 24.0.5, build 24.0.5-0ubuntu1~20.04.1

root@ip-172-31-15-245:~#

Next, go to the site

https://hub.docker.com/signup

Now, you need to register yourself

After registering yourself, login into that  and the below screen gets displayed and search for hello world to test.

If every thing is working fine, then we will get the output as hello world.  To make sure that set up is done properly. let me run that command

In the above screen shot, you can see that it is not able to find the image 

so it is pulling from the library

once pulling from library is completed. it is going to download that image

Hello from Docker!

This message shows that your installation appears to be working correctly.

Set up is done successfully.

Displaying Docker Images

To see the list of Docker images on the system, you can issue the following command.

Return Value

The output will provide the list of images on the system.

docker image ls or docker images

You can also use the below command  

docker ps -all