Last active
February 6, 2019 10:00
-
-
Save aputs/6247216 to your computer and use it in GitHub Desktop.
shell script for creating ubuntu base image for running inside docker containers
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #!/bin/sh | |
| set -x | |
| control_c() | |
| # run if user hits control-c | |
| { | |
| echo -en "\n*** Ouch! Exiting ***\n" | |
| exit $? | |
| } | |
| trap control_c SIGINT | |
| ## warning!!! | |
| ## sudo access | |
| [ ! -e $(which debootstrap 2> /dev/null) ] && echo "error: debootstrap not found" && exit 1 | |
| arch=amd64 | |
| release=${1:-raring} | |
| repo=${2:-aputs} | |
| dest_path=$(readlink -f -- "$(dirname $0)") | |
| target_path=$(mktemp --directory) | |
| hostname="$release-$arch" | |
| extra_packages="iproute,net-tools,ca-certificates,dialog" | |
| [ ! -e "$target_path" ] && echo "error: error generating temporary directory" && exit 1 | |
| sudo rm -fr $target_path | |
| sudo mkdir -p $target_path | |
| sudo mkdir -p $target_path/etc/apt/apt.conf.d $target_path/etc/dpkg/dpkg.cfg.d | |
| # minimize installation configs | |
| cat << EOF | sudo tee $target_path/etc/apt/apt.conf.d/02compress-indexes | |
| Acquire::GzipIndexes "true"; | |
| Acquire::CompressionTypes::Order:: "gz"; | |
| EOF | |
| cat << EOF | sudo tee $target_path/etc/apt/apt.conf.d/02nocache | |
| Dir::Cache { | |
| srcpkgcache ""; | |
| pkgcache ""; | |
| } | |
| EOF | |
| cat << EOF | sudo tee $target_path/etc/apt/apt.conf.d/97norecommends | |
| APT | |
| { | |
| Install-Recommends "false"; | |
| }; | |
| EOF | |
| cat << EOF | sudo tee $target_path/etc/dpkg/dpkg.cfg.d/01_nodoc | |
| path-exclude /usr/share/doc/* | |
| # we need to keep copyright files for legal reasons | |
| path-include /usr/share/doc/*/copyright | |
| path-exclude /usr/share/man/* | |
| path-exclude /usr/share/groff/* | |
| path-exclude /usr/share/info/* | |
| # lintian stuff is small, but really unnecessary | |
| path-exclude /usr/share/lintian/* | |
| path-exclude /usr/share/linda/* | |
| # lang | |
| path-exclude /usr/share/locale/* | |
| path-include /usr/share/locale/en* | |
| # landscape | |
| path-exclude /usr/share/pyshared/twisted/test* | |
| path-exclude /usr/lib/python*/dist-packages/twisted/test* | |
| path-exclude /usr/share/pyshared/twisted/*/test* | |
| path-exclude /usr/lib/python*/dist-packages/twisted/*/test* | |
| EOF | |
| sudo debootstrap --verbose --arch=$arch --variant=minbase --include=$extra_packages $release $target_path | |
| sudo rm -rf $target_path/dev | |
| sudo mkdir -p $target_path/dev | |
| sudo mknod -m 0666 $target_path/dev/null c 1 3 | |
| sudo mknod -m 0666 $target_path/dev/zero c 1 5 | |
| sudo mknod -m 0666 $target_path/dev/random c 1 8 | |
| sudo mknod -m 0666 $target_path/dev/urandom c 1 9 | |
| sudo mkdir -m 0755 $target_path/dev/pts | |
| sudo mkdir -m 1777 $target_path/dev/shm | |
| sudo mknod -m 0666 $target_path/dev/tty c 5 0 | |
| sudo mknod -m 0666 $target_path/dev/tty0 c 4 0 | |
| sudo mknod -m 0666 $target_path/dev/tty1 c 4 1 | |
| sudo mknod -m 0600 $target_path/dev/console c 5 1 | |
| sudo mknod -m 0666 $target_path/dev/full c 1 7 | |
| sudo mknod -m 0600 $target_path/dev/initctl p | |
| sudo mknod -m 0666 $target_path/dev/ptmx c 5 2 | |
| cat << EOF | sudo tee $target_path/etc/fstab | |
| devpts /dev/pts devpts defaults 0 0 | |
| proc /proc proc defaults 0 0 | |
| sysfs /sys sysfs defaults 0 0 | |
| tmpfs /dev/shm tmpfs defaults 0 0 | |
| EOF | |
| cat << EOF | sudo tee $target_path/etc/hosts | |
| 127.0.0.1 localhost | |
| EOF | |
| cat << EOF | sudo tee $target_path/etc/apt/sources.list | |
| deb http://archive.ubuntu.com/ubuntu $release main universe | |
| deb http://archive.ubuntu.com/ubuntu $release-updates main restricted universe | |
| EOF | |
| # link to /tmp | |
| sudo rm -rf $target_path/run | |
| sudo ln -fs tmp $target_path/run | |
| # fixup & cleanup | |
| sudo mount -t proc none $target_path/proc | |
| sudo mount -t sysfs none $target_path/sys | |
| sudo mount -t tmpfs none $target_path/tmp | |
| sudo chroot $target_path /bin/bash -x <<'EOF' | |
| # LC_LANG errors | |
| locale-gen en_US en_US.utf8 | |
| touch /etc/resolv.conf | |
| cp -pf /etc/skel/.* /root | |
| apt-get -y update | |
| # fix for install using chroot | |
| dpkg-divert --local --rename --add /sbin/initctl | |
| dpkg-divert --local --rename --add /sbin/start-stop-daemon | |
| ln -s /bin/true /sbin/initctl | |
| ln -s /bin/true /sbin/start-stop-daemon | |
| apt-get -y upgrade | |
| apt-get -y install cron | |
| # cleanup | |
| apt-get -y clean all | |
| apt-get -y autoremove | |
| rm -rf /var/lib/apt/lists/* | |
| # restore diversion for install fix | |
| rm -rf /sbin/initctl /sbin/start-stop-daemon | |
| dpkg-divert --local --rename --remove /sbin/start-stop-daemon | |
| dpkg-divert --local --rename --remove /sbin/initctl | |
| find /usr/share/doc -depth -type f ! -name copyright | xargs rm || true | |
| find /usr/share/doc -empty | xargs rmdir || true | |
| rm -rf /usr/share/man /usr/share/groff /usr/share/info /usr/share/lintian /usr/share/linda /var/cache/man | |
| find /usr/share/locale -mindepth 1 -maxdepth 1 ! -name 'en' | xargs rm -r | |
| rm -rf /var/cache/apt/*.bin | |
| # mtab | |
| ln -fs /proc/mounts /etc/mtab | |
| # upstart fixes (disable all jobs) | |
| for a in $(ls /etc/init/*.conf) | |
| do | |
| b=$(basename -s.conf $a) | |
| echo "manual" > /etc/init/$b.override | |
| done | |
| dpkg-divert --local --rename --add /etc/init.d/ondemand | |
| rm -rf /etc/init/upstart-file-bridge.override | |
| rm -rf /etc/init/upstart-socket-bridge.override | |
| rm -rf /etc/init/rc-sysinit.override | |
| rm -rf /etc/init/rc.override | |
| rm -rf /etc/init/cron.override | |
| rm -rf /etc/init/passwd.override | |
| # apt-get install fixes | |
| mkdir -p /usr/share/man/man{1,2,3,4,5,6,7,8,9} | |
| EOF | |
| cat << EOF | sudo tee $target_path/etc/init/fix-upstart.conf | |
| env DEFAULT_RUNLEVEL=3 | |
| start on startup | |
| script | |
| : > "/run/utmp" | |
| chmod 664 "/run/utmp" | |
| chgrp utmp "/run/utmp" | |
| mkdir -p /run/sendsigs.omit.d | |
| telinit \$DEFAULT_RUNLEVEL | |
| initctl emit --no-wait net-device-up IFACE=lo | |
| initctl emit --no-wait static-network-up | |
| initctl emit --no-wait mounted | |
| initctl emit --no-wait filesystem | |
| initctl emit --no-wait virtual-filesystems | |
| end script | |
| EOF | |
| cat << EOF | sudo tee $target_path/etc/init/fix-upstart-reboot.conf | |
| start on runlevel [06] | |
| script | |
| initctl emit --no-wait startup | |
| end script | |
| EOF | |
| sudo umount $target_path/proc | |
| sudo umount $target_path/sys | |
| sudo umount $target_path/tmp | |
| tag=$(grep DISTRIB_RELEASE $target_path/etc/lsb-release | cut -d'=' -f2) | |
| img=$(sudo tar --numeric-owner -C $target_path -c . | docker import - $repo/$release) | |
| sudo rm -fr $target_path |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Just so you know, the resulting docker image at https://index.docker.io/u/aputs/raring/ has a strange behavior (at least on my machine) with apt tasks. Running "apt-cache show mail-server^" hangs there with 100% CPU usage. No idea why unfortunately.