Been playing a little with Docker this afternoon, while its something I have been aware for a while its not something I have really looked into.
As I prefer working with CentOS rather than Ubuntu its taken me a while to get the motivation to do any more than some reading, however as the latest version now runs on RHE compatible
Docker 1/4
yum install http://www.mirrorservice.org/sites/dl.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm
yum -y install docker-io
service docker start
chkconfig docker on
Once the services are installed pull down some images to test with;
Docker 2/4
docker pull ubuntu
docker pull centos
docker run centos /bin/echo hello world
the last command launches a CentOS container, runs the echo and then exits. To do something more interesting;
Docker 3/4
CONTAINER_ID=$(sudo docker run -d ubuntu /bin/sh -c āwhile true; do echo hello world; sleep 1; doneā)
docker ps
docker attach -sig-proxy=false $CONTAINER_ID
docker logs $CONTAINER_ID
docker stop $CONTAINER_ID
Once you have some containers running the following commands are useful;
Docker 4/4
docker info # Get some information on the installation
docker images # List the available images
docker ps # Whats running?
docker search [TERM] # Search for images
This is probably one of the better introductions to Docker I have seen;
and some further reading;