Docker
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
yum install http://www.mirrorservice.org/sites/dl.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpmyum -y install docker-ioservice docker startchkconfig docker on
Once the services are installed pull down some images to test with;
docker pull ubuntudocker pull centosdocker run centos /bin/echo hello world
the last command launches a CentOS container, runs the echo and then exits. To do something more interesting;
CONTAINER_ID=$(sudo docker run -d ubuntu /bin/sh -c “while true; do echo hello world; sleep 1; done”)docker psdocker attach -sig-proxy=false $CONTAINER_IDdocker logs $CONTAINER_IDdocker stop $CONTAINER_ID
Once you have some containers running the following commands are useful;
docker info # Get some information on the installationdocker images # List the available imagesdocker 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;
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