145 lines
6.3 KiB
Markdown
145 lines
6.3 KiB
Markdown
## [Ubuntu](https://hub.docker.com/_/ubuntu/)
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### 基本信息
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[Ubuntu](https://en.wikipedia.org/wiki/Ubuntu) 是流行的 Linux 发行版，其自带软件版本往往较新一些。
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该仓库位于 https://hub.docker.com/_/ubuntu/ ，提供了 Ubuntu 从 12.04 ~ 16.10 各个版本的镜像。
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### 使用方法
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默认会启动一个最小化的 Ubuntu 环境。
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```
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$ docker run --name some-ubuntu -i -t ubuntu
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root@523c70904d54:/#
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```
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### Dockerfile
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#### 12.04 版本
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```
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FROM scratch
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ADD precise-core-amd64.tar.gz /
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# a few minor docker-specific tweaks
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# see https://github.com/dotcloud/docker/blob/master/contrib/mkimage/debootstrap
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RUN echo '#!/bin/sh' > /usr/sbin/policy-rc.d \
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&& echo 'exit 101' >> /usr/sbin/policy-rc.d \
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&& chmod +x /usr/sbin/policy-rc.d \
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\
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&& dpkg-divert --local --rename --add /sbin/initctl \
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&& cp -a /usr/sbin/policy-rc.d /sbin/initctl \
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&& sed -i 's/^exit.*/exit 0/' /sbin/initctl \
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\
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&& echo 'force-unsafe-io' > /etc/dpkg/dpkg.cfg.d/docker-apt-speedup \
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\
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&& echo 'DPkg::Post-Invoke { "rm -f /var/cache/apt/archives/*.deb /var/cache/apt/archives/partial/*.deb /var/cache/apt/*.bin || true"; };' > /etc/apt/apt.conf.d/docker-clean \
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&& echo 'APT::Update::Post-Invoke { "rm -f /var/cache/apt/archives/*.deb /var/cache/apt/archives/partial/*.deb /var/cache/apt/*.bin || true"; };' >> /etc/apt/apt.conf.d/docker-clean \
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&& echo 'Dir::Cache::pkgcache ""; Dir::Cache::srcpkgcache "";' >> /etc/apt/apt.conf.d/docker-clean \
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\
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&& echo 'Acquire::Languages "none";' > /etc/apt/apt.conf.d/docker-no-languages \
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\
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&& echo 'Acquire::GzipIndexes "true"; Acquire::CompressionTypes::Order:: "gz";' > /etc/apt/apt.conf.d/docker-gzip-indexes
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# delete all the apt list files since they're big and get stale quickly
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RUN rm -rf /var/lib/apt/lists/*
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# this forces "apt-get update" in dependent images, which is also good
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# enable the universe
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RUN sed -i 's/^#\s*\(deb.*universe\)$/\1/g' /etc/apt/sources.list
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# upgrade packages for now, since the tarballs aren't updated frequently enough
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RUN apt-get update && apt-get dist-upgrade -y && rm -rf /var/lib/apt/lists/*
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# overwrite this with 'CMD []' in a dependent Dockerfile
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CMD ["/bin/bash"]
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```
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#### 14.04 版本
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```
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FROM scratch
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ADD trusty-core-amd64.tar.gz /
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# a few minor docker-specific tweaks
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# see https://github.com/dotcloud/docker/blob/master/contrib/mkimage/debootstrap
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RUN echo '#!/bin/sh' > /usr/sbin/policy-rc.d \
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&& echo 'exit 101' >> /usr/sbin/policy-rc.d \
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&& chmod +x /usr/sbin/policy-rc.d \
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\
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&& dpkg-divert --local --rename --add /sbin/initctl \
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&& cp -a /usr/sbin/policy-rc.d /sbin/initctl \
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&& sed -i 's/^exit.*/exit 0/' /sbin/initctl \
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\
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&& echo 'force-unsafe-io' > /etc/dpkg/dpkg.cfg.d/docker-apt-speedup \
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\
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&& echo 'DPkg::Post-Invoke { "rm -f /var/cache/apt/archives/*.deb /var/cache/apt/archives/partial/*.deb /var/cache/apt/*.bin || true"; };' > /etc/apt/apt.conf.d/docker-clean \
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&& echo 'APT::Update::Post-Invoke { "rm -f /var/cache/apt/archives/*.deb /var/cache/apt/archives/partial/*.deb /var/cache/apt/*.bin || true"; };' >> /etc/apt/apt.conf.d/docker-clean \
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&& echo 'Dir::Cache::pkgcache ""; Dir::Cache::srcpkgcache "";' >> /etc/apt/apt.conf.d/docker-clean \
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\
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&& echo 'Acquire::Languages "none";' > /etc/apt/apt.conf.d/docker-no-languages \
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\
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&& echo 'Acquire::GzipIndexes "true"; Acquire::CompressionTypes::Order:: "gz";' > /etc/apt/apt.conf.d/docker-gzip-indexes
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# delete all the apt list files since they're big and get stale quickly
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RUN rm -rf /var/lib/apt/lists/*
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# this forces "apt-get update" in dependent images, which is also good
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# enable the universe
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RUN sed -i 's/^#\s*\(deb.*universe\)$/\1/g' /etc/apt/sources.list
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# upgrade packages for now, since the tarballs aren't updated frequently enough
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RUN apt-get update && apt-get dist-upgrade -y && rm -rf /var/lib/apt/lists/*
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# overwrite this with 'CMD []' in a dependent Dockerfile
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CMD ["/bin/bash"]
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```
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#### 16.04 版本
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```
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FROM scratch
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ADD ubuntu-xenial-core-cloudimg-amd64-root.tar.gz /
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# a few minor docker-specific tweaks
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# see https://github.com/docker/docker/blob/9a9fc01af8fb5d98b8eec0740716226fadb3735c/contrib/mkimage/debootstrap
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RUN set -xe \
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\
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# https://github.com/docker/docker/blob/9a9fc01af8fb5d98b8eec0740716226fadb3735c/contrib/mkimage/debootstrap#L40-L48
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&& echo '#!/bin/sh' > /usr/sbin/policy-rc.d \
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&& echo 'exit 101' >> /usr/sbin/policy-rc.d \
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&& chmod +x /usr/sbin/policy-rc.d \
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\
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# https://github.com/docker/docker/blob/9a9fc01af8fb5d98b8eec0740716226fadb3735c/contrib/mkimage/debootstrap#L54-L56
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&& dpkg-divert --local --rename --add /sbin/initctl \
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&& cp -a /usr/sbin/policy-rc.d /sbin/initctl \
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&& sed -i 's/^exit.*/exit 0/' /sbin/initctl \
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\
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# https://github.com/docker/docker/blob/9a9fc01af8fb5d98b8eec0740716226fadb3735c/contrib/mkimage/debootstrap#L71-L78
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&& echo 'force-unsafe-io' > /etc/dpkg/dpkg.cfg.d/docker-apt-speedup \
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\
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# https://github.com/docker/docker/blob/9a9fc01af8fb5d98b8eec0740716226fadb3735c/contrib/mkimage/debootstrap#L85-L105
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&& echo 'DPkg::Post-Invoke { "rm -f /var/cache/apt/archives/*.deb /var/cache/apt/archives/partial/*.deb /var/cache/apt/*.bin || true"; };' > /etc/apt/apt.conf.d/docker-clean \
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&& echo 'APT::Update::Post-Invoke { "rm -f /var/cache/apt/archives/*.deb /var/cache/apt/archives/partial/*.deb /var/cache/apt/*.bin || true"; };' >> /etc/apt/apt.conf.d/docker-clean \
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&& echo 'Dir::Cache::pkgcache ""; Dir::Cache::srcpkgcache "";' >> /etc/apt/apt.conf.d/docker-clean \
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\
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# https://github.com/docker/docker/blob/9a9fc01af8fb5d98b8eec0740716226fadb3735c/contrib/mkimage/debootstrap#L109-L115
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&& echo 'Acquire::Languages "none";' > /etc/apt/apt.conf.d/docker-no-languages \
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\
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# https://github.com/docker/docker/blob/9a9fc01af8fb5d98b8eec0740716226fadb3735c/contrib/mkimage/debootstrap#L118-L130
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&& echo 'Acquire::GzipIndexes "true"; Acquire::CompressionTypes::Order:: "gz";' > /etc/apt/apt.conf.d/docker-gzip-indexes \
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\
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# https://github.com/docker/docker/blob/9a9fc01af8fb5d98b8eec0740716226fadb3735c/contrib/mkimage/debootstrap#L134-L151
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&& echo 'Apt::AutoRemove::SuggestsImportant "false";' > /etc/apt/apt.conf.d/docker-autoremove-suggests
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# delete all the apt list files since they're big and get stale quickly
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RUN rm -rf /var/lib/apt/lists/*
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# this forces "apt-get update" in dependent images, which is also good
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# enable the universe
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RUN sed -i 's/^#\s*\(deb.*universe\)$/\1/g' /etc/apt/sources.list
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# overwrite this with 'CMD []' in a dependent Dockerfile
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CMD ["/bin/bash"]
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```
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