Docker series for beginners: Running your first container on docker.

Today we are going to learn how to run your first docker container. 

I am assuming that you have already downloaded and installed docker desktop on your machine. If you haven't downloaded the docker then you use below link to download. 

https://www.docker.com/products/docker-desktop

Now follow below instructions:

Open docker desktop on your machine. Make sure docker is running.
To insure that docker is installed correctly run below command to check the version:

  docker -v                                                                  

Above command will give you docker version.

Now go to https://hub.docker.com/  and search for any image that you want to run. In my case I am going to pull alpine image.Alpine Linux is Linux distribution.

  docker pull alpine                                                       

Above command will download the Alpine image from dockerhub to your system. 

Now run the below command to see available images on your system:

  docker image ls                                                          

docker image ls

REPOSITORY                       TAG           IMAGE ID       CREATED       SIZE

alpine                           latest        bb3de5531c18   2 weeks ago   5.34MB

You can check image name along with image id and size it's taking on system.

Now lets run our first container by this command: 

  docker run -it alpine /bin/sh                  

-it is interactive mode, alpine is image name, /bin/sh is shell.

docker run -it alpine /bin/sh

/ # 

Now type any linux command to see if you are inside linux.

/ # pwd

/

/ # whoami

root

/ # ls

bin    dev    etc    home   lib    media  mnt    opt    proc   root   run    sbin   srv    sys    tmp    usr    var

/ # 

Wow! we have successfully started our container.

Note: If you think this helped you and you want to learn more stuff on devops, then I would recommend joining the Kodecloud devops course and go for the complete certification path by clicking this link