Docker 0.7.3 发布，Linux 容器引擎

其实随本次更新的，还有一个被称为OS X 下的 docker 二进制版本（虽然是官方提供，但目前仅供测试用）。而且如果此方法（即是在虚拟机内运行一个被称为boot2docker的超迷你linux发型版，内置docker）可行的话，预感Windows平台下的 docker二进制版本也会很快到来。

对OSX 下docker 二进制版本 即http://test.docker.io/builds/Darwin/x86_64/docker-0.7.3.tgz 有兴趣的，可以请参见 HW上的讨论。

docker osx build 的 github issue 链接： https://github.com/dotcloud/docker/issues/1616

详细的修正日志来自 GitHub：

0.7.3 (2013-01-02)

Builder

• Update ADD to use the image cache, based on a hash of the added content

• Add error message for empty Dockerfile

Documentation

• Fix outdated link to the "Introduction" on www.docker.io

• Update the docs to get wider when the screen does

• Add information about needing to install LXC when using raw binaries

• Update Fedora documentation to disentangle the docker and docker.io conflict

• Add a note about using the new -mtu flag in several GCE zones

• Add FrugalWare installation instructions

• Add a more complete example of docker run

• Fix API documentation for creating and starting Privileged containers

• Add missing "name" parameter documentation on "/containers/create"

• Add a mention of lxc-checkconfig as a way to check for some of the necessary kernel configuration

• Update the 1.8 API documentation with some additions that were added to the docs for 1.7

Hack

• Add missing libdevmapper dependency to the packagers documentation

• Update minimum Go requirement to a hard line at Go 1.2+

• Many minor improvements to the Vagrantfile

• Add ability to customize dockerinit search locations when compiling (to be used very sparingly only by packagers of platforms who require a nonstandard location)

• Add coverprofile generation reporting

• Add -a to our Go build flags, removing the need for recompiling the stdlib manually

• Update Dockerfile to be more canonical and have less spurious warnings during build

• Fix some miscellaneous docker pull progress bar display issues

• Migrate more miscellaneous packages under the "pkg" folder

• Update TextMate highlighting to automatically be enabled for files named "Dockerfile"

• Reorganize syntax highlighting files under a common "contrib/syntax" directory

• Update install.sh script (https://get.docker.io/) to not fail if busybox fails to download or run at the end of the Ubuntu/Debian installation

• Add support for container names in bash completion

Packaging

• Add an official Docker client binary for Darwin (Mac OS X)

• Remove empty "Vendor" string and added "License" on deb package

• Add a stubbed version of "/etc/default/docker" in the deb package

Runtime

• Update layer application to extract tars in place, avoiding file churn while handling whiteouts

• Fix permissiveness of mtime comparisons in tar handling (since GNU tar and Go tar do not yet support sub-second mtime precision)

• Reimplement docker top in pure Go to work more consistently, and even inside Docker-in-Docker (thus removing the shell injection vulnerability present in some versions of lxc-ps)

• Update -H unix:// to work similarly to -H tcp:// by inserting the default values for missing portions

• Fix more edge cases regarding dockerinit and deleted or replaced docker or dockerinit files

• Update container name validation to include '.'

• Fix use of a symlink or non-absolute path as the argument to -g to work as expected

• Update to handle external mounts outside of LXC, fixing many small mounting quirks and making future execution backends and other features simpler

• Update to use proper box-drawing characters everywhere in docker images -tree

• Move MTU setting from LXC configuration to directly use netlink

• Add -S option to external tar invocation for more efficient spare file handling

• Add arch/os info to User-Agent string, especially for registry requests

• Add -mtu option to Docker daemon for configuring MTU

• Fix docker build to exit with a non-zero exit code on error

• Add DOCKER_HOST environment variable to configure the client -H flag without specifying it manually for every invocation

更多内容请查阅：https://github.com/dotcloud/docker/blob/v0.7.3/CHANGELOG.md