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How to Install Docker in Linux?

How to Install Docker in Linux?
Note - You should install Docker using root or with sudo access.
Install Docker on Ubantu 
# apt-get update
# apt-get install -y docker.io
# service docker.io start
Install Docker on Redhar / Centos
# yum update
# yum install -y docker.io
# systemctl start docker.service
How to verify the version of docker?
# docker -v
# docker version
How to know docker running?
# service docker.io status (Ubantu)
# systemctl status docker.service (Redhat)
How to check details of Docker clients, deamon, containers, images, drivers, etc
# docker info
How to update Docker version?
# wget -q0- https://get.docker.com/gpg | apt-key add -
# echo deb http://get.docker.com/ubantu docker main > /etc/apt/sources.list.d/docker.list
# apt-get update
# apt-get install lxc-docker
# docker version
Configuration post docker installation:
Adding Users to the Docker Group for non-root user
# docker run -it ubuntu /bin/bash (as a non-root)
[ permission denied]
# cat /etc/group
# sudo gpasswd -a username docker
# cat /etc/group
# docker run -it ubuntu /bin/bash (as a non-root)
# logout
# login username
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Rajesh Kumar


Total, Over 12 years of extensive experience in the Software Configuration Management domain having depth knowledge of DevOps, Continuous Integration and Delivery, Configuration Management, Build and Installer, Release Management and Application Management.

What corporate management say about us?

Rajesh is very knowledgeable instructor he has a good exposure on real time issue and case studies he is experienced in large environment issue and challenges. I really liked how Rajesh used a lot of examples so that concepts were more easily understood, I like the examples that Rajesh give to help us remember things…they are usually real scenario, real life problems that we encounter frequently. <br /> He is well organised in terms of study materiel that you can refer anytime after you complete your course. His blogs are crisp and has to the point key content that he discussed during session to remember if you refer them remotely.

Gaurav Vishnoi
I am having 11+ years of experience in java, due to increasing complexity of system and environment I opted for this tanning and find it very useful., Noida
Sep 02, 2016