How To Install Docker on CentOS 6
II. How To List and Attach to Docker Containers
III. How to Commit Changes and Create Docker Images
IV. How to View Logs for a Docker Container
Docker is a container-based software framework for automating deployment of applications. “Containers” are encapsulated, lightweight, and portable application modules.
- As of June 2014 Docker has officially released v1.0.0.
- These instructions are intended for installing Docker.
- I’ll be working from a Liquid Web Core Managed CentOS 6.5 server, and I’ll be logged in as root.
Docker is part of Extra Packages for Enterprise Linux (EPEL), which is a community repository of non-standard packages for the RHEL distribution. First, we’ll install the EPEL repository:
rpm -iUvh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
Then, as a matter of best practice, we’ll update our packages:
yum update -y
Now let’s install Docker by installing the docker-io package:
yum -y install docker-io
Once the installation completes, we’ll need to start the Docker daemon:
service docker start
And finally, and optionally, let’s configure Docker to start when the server boots:
chkconfig docker on
Let’s begin using Docker! Download the centos Docker image:
docker pull centos
Now, to setup a basic
docker run -i -t centos /bin/bash
That’s it! You’re now using a bash shell inside of a centos docker container.
To disconnect, or detach, from the shell without exiting use the escape sequence Ctrl-p + Ctrl-q.
There are many community containers already available, which can be found through a search. In the command below I am searching for the keyword
docker search centos
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About the Author: J. Mays
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