The Docker team have also committed that their github master branch will be stable, making it the point of reference for those wanting the latest version. This follows a $15m investment round led by former VMware VP Jerry Chen of Greylock Partners that was slated for getting Docker production ready, building out the community platform, and finding routes to commercialisation. The Docker.io team have also announced that they will now make one release per month, with releases not tied to any specific features. Work is also in progress on a ZFS driver. The use of an underlying copy on write filesystem is essential to the working of Docker where images, and containers spawned from images, are made up of layers with each layer mapping to a filesystem branch. The BTRFS driver is described as experimental, and requires an existing BTRFS partition to be set up. Unfortunately Boot2Docker doesn’t yet integrate with Docker’s own port mapping mechanism, so it’s presently necessary to map ports in both VirtualBox and Docker in order to connect from the host Mac to services running inside containers. The DOCKER_HOST environment variable is used so that the client can connect to a Docker daemon on TCP rather than the default native Unix socket. Boot2Docker provides lifecycle management, and also takes care of port mappings for SSH and the Docker daemon running in the VM. Boot2Docker provides a minimal linux environment, and a set of command line scripts to work with VirtualBox. The Docker team have a stated desire to port Linux containers ( LXC) and other dependencies to OS X, but for now their daemon must run in a VM. Prior to this release Mac users would have to run both the Docker client and daemon in a Linux virtual machine. Mac support consists of a native Docker OS X client, and a lightweight Boot2Docker virtual machine (VM) that must run in VirtualBox (as OS X doesn’t have the underlying support for Linux containers required by Docker).
#Docker on mac os x mac os x#
As part of the 0.8 release the Docker.io team have announced support for installation on Mac OS X and the use of the BTRFS as an alternative to AUFS.
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