发布于 2015-02-05 00:50:20 | 178 次阅读 | 评论: 0 | 来源: 网友投递
这里有新鲜出炉的Docker从入门到实践，程序狗速度看过来！
Docker 开源应用容器引擎
Docker 是一个开源的应用容器引擎，让开发者可以打包他们的应用以及依赖包到一个可移植的容器中，然后发布到任何流行的 Linux 机器上，也可以实现虚拟化。
Docker 1.5.0-rc4 发布，刚发布 Docker 1.5.0 RC3 一天，就又继续发布了 RC4 版本。
Docker 是一个开源的应用容器引擎，让开发者可以打包他们的应用以及依赖包到一个可移植的容器中，然后发布到任何流行的 Linux 机器上，也可以实现虚拟化。
二进制包下载：
Ubuntu/Debian: https://test.docker.com/ubuntu or curl -sSL https://test.docker.com/ | sh
Linux 64bit binary: https://test.docker.com/builds/Linux/x86_64/docker-1.5.0-rc4
Darwin/OSX 64bit client binary: https://test.docker.com/builds/Darwin/x86_64/docker-1.5.0-rc4
Darwin/OSX 32bit client binary: https://test.docker.com/builds/Darwin/i386/docker-1.5.0-rc4
Linux 64bit tgz: https://test.docker.com/builds/Linux/x86_64/docker-1.5.0-rc4.tgz
Builder
+ Dockerfile to use for a given `docker build` can be specified with the `-f` flag
* Dockerfile and .dockerignore files can be themselves excluded as part of the .dockerignore file, thus preventing modifications to these files invalidating ADD or COPY instructions cache
* ADD and COPY instructions accept relative paths
* Dockerfile `FROM scratch` instruction is now interpreted as a no-base specifier
* Improve performance when exposing a large number of ports
Hack
+ Allow client-side only integration tests for Windows
* Include docker-py integration tests against Docker daemon as part of our test suites
Packaging
+ Support for the new version of the registry HTTP API
* Speed up `docker push` for images with a majority of already existing layers
- Fixed contacting a private registry through a proxy
Remote API
+ A new endpoint will stream live container resource metrics and can be accessed with the `docker stats` command
+ Containers can be renamed using the new `rename` endpoint and the associated `docker rename` command
* Container `inspect` endpoint show the ID of `exec` commands running in this container
* Container `inspect` endpoint show the number of times Docker auto-restarted the container
* New types of event can be streamed by the `events` endpoint: ‘OOM’ (container died with out of memory), ‘exec_create’, and ‘exec_start'
- Fixed returned string fields which hold numeric characters incorrectly omitting surrounding double quotes
Runtime
+ Docker daemon has full IPv6 support
+ The `docker run` command can take the `--pid=host` flag to use the host PID namespace, which makes it possible for example to debug host processes using containerized debugging tools
+ The `docker run` command can take the `--read-only` flag to make the container’s root filesystem mounted as readonly, which can be used in combination with volumes to force a container’s processes to only write to locations that will be persisted
+ Container total memory usage can be limited for `docker run` using the `—memory-swap` flag
* Major stability improvements for devicemapper storage driver
* Better integration with host system: containers will reflect changes to the host's `/etc/resolv.conf` file when restarted
* Better integration with host system: per-container iptable rules are moved to the DOCKER chain
- Fixed container exiting on out of memory to return an invalid exit code
Other
* The HTTP_PROXY, HTTPS_PROXY, and NO_PROXY environment variables are properly taken into account by the client when connecting to the Docker daemon