The centos dockerfile has a default command bash. That means, when run in background (-d), the shell exits immediately. Update 2017 More recent versions of docker authorize to run a container both in detached mode and in foreground mode (-t, -i or -it) In that case, you don’t need any additional command and this is … Read more
The contents of the /var/lib/docker directory vary depending on the driver Docker is using for storage. By default this will be aufs but can fall back to overlay, overlay2, btrfs, devicemapper or zfs depending on your kernel support. In most places this will be aufs but the RedHats went with devicemapper. You can manually set the storage driver with the -s or –storage-driver= option to the Docker daemon. /var/lib/docker/{driver-name} will contain the driver specific storage for contents … Read more
Use this command And access root in container This should work!
An instance of an image is called a container. You have an image, which is a set of layers as you describe. If you start this image, you have a running container of this image. You can have many running containers of the same image. You can see all your images with docker images whereas you can … Read more