fuel-build/docker/mkimage/debootstrap

   1 #!/usr/bin/env bash
   2 #
   3 set -e
   4
   5 rootfsDir="$1"
   6 shift
   7
   8 # we have to do a little fancy footwork to make sure "rootfsDir" becomes the second non-option argument to debootstrap
   9
  10 before=()
  11 while [ $# -gt 0 ] && [[ "$1" == -* ]]; do
  12         before+=( "$1" )
  13         shift
  14 done
  15
  16 suite="$1"
  17 shift
  18
  19 (
  20         set -x
  21         debootstrap "${before[@]}" "$suite" "$rootfsDir" "$@"
  22 )
  23
  24 # now for some Docker-specific tweaks
  25
  26 # prevent init scripts from running during install/update
  27 echo >&2 "+ cat > '$rootfsDir/usr/sbin/policy-rc.d'"
  28 cat > "$rootfsDir/usr/sbin/policy-rc.d" <<'EOF'
  29 #!/bin/sh
  30 exit 101
  31 EOF
  32 chmod +x "$rootfsDir/usr/sbin/policy-rc.d"
  33
  34 # prevent upstart scripts from running during install/update
  35 (
  36         set -x
  37         chroot "$rootfsDir" dpkg-divert --local --rename --add /sbin/initctl
  38         ln -sf /bin/true "$rootfsDir/sbin/initctl"
  39 )
  40
  41 # shrink the image, since apt makes us fat (wheezy: ~157.5MB vs ~120MB)
  42 ( set -x; chroot "$rootfsDir" apt-get clean )
  43
  44 # Ubuntu 10.04 sucks... :)
  45 if strings "$rootfsDir/usr/bin/dpkg" | grep -q unsafe-io; then
  46         # force dpkg not to call sync() after package extraction (speeding up installs)
  47         echo >&2 "+ echo force-unsafe-io > '$rootfsDir/etc/dpkg/dpkg.cfg.d/docker-apt-speedup'"
  48         echo 'force-unsafe-io' > "$rootfsDir/etc/dpkg/dpkg.cfg.d/docker-apt-speedup"
  49 fi
  50
  51 if [ -d "$rootfsDir/etc/apt/apt.conf.d" ]; then
  52         # _keep_ us lean by effectively running "apt-get clean" after every install
  53         aptGetClean='"rm -f /var/cache/apt/archives/*.deb /var/cache/apt/archives/partial/*.deb /var/cache/apt/*.bin || true";'
  54         echo >&2 "+ cat > '$rootfsDir/etc/apt/apt.conf.d/docker-clean'"
  55         cat > "$rootfsDir/etc/apt/apt.conf.d/docker-clean" <<-EOF
  56                 DPkg::Post-Invoke { ${aptGetClean} };
  57                 APT::Update::Post-Invoke { ${aptGetClean} };
  58
  59                 Dir::Cache::pkgcache "";
  60                 Dir::Cache::srcpkgcache "";
  61         EOF
  62
  63         # remove apt-cache translations for fast "apt-get update"
  64         echo >&2 "+ cat > '$rootfsDir/etc/apt/apt.conf.d/docker-no-languages'"
  65         echo 'Acquire::Languages "none";' > "$rootfsDir/etc/apt/apt.conf.d/docker-no-languages"
  66 fi
  67
  68 if [ -z "$DONT_TOUCH_SOURCES_LIST" ]; then
  69         # tweak sources.list, where appropriate
  70         lsbDist=
  71         if [ -z "$lsbDist" -a -r "$rootfsDir/etc/os-release" ]; then
  72                 lsbDist="$(. "$rootfsDir/etc/os-release" && echo "$ID")"
  73         fi
  74         if [ -z "$lsbDist" -a -r "$rootfsDir/etc/lsb-release" ]; then
  75                 lsbDist="$(. "$rootfsDir/etc/lsb-release" && echo "$DISTRIB_ID")"
  76         fi
  77         if [ -z "$lsbDist" -a -r "$rootfsDir/etc/debian_version" ]; then
  78                 lsbDist='Debian'
  79         fi
  80         case "$lsbDist" in
  81                 debian|Debian)
  82                         # updates and security!
  83                         if [ "$suite" != 'sid' -a "$suite" != 'unstable' ]; then
  84                                 (
  85                                         set -x
  86                                         sed -i "p; s/ $suite main$/ ${suite}-updates main/" "$rootfsDir/etc/apt/sources.list"
  87                                         echo "deb http://security.debian.org $suite/updates main" >> "$rootfsDir/etc/apt/sources.list"
  88                                 )
  89                         fi
  90                         ;;
  91                 ubuntu|Ubuntu)
  92                         # add the universe, updates, and security repositories
  93                         (
  94                                 set -x
  95                                 sed -i "
  96                                         s/ $suite main$/ $suite main universe/; p;
  97                                         s/ $suite main/ ${suite}-updates main/; p;
  98                                         s/ $suite-updates main/ ${suite}-security main/
  99                                 " "$rootfsDir/etc/apt/sources.list"
 100                         )
 101                         ;;
 102                 tanglu|Tanglu)
 103                         # add the updates repository
 104                         if [ "$suite" != 'devel' ]; then
 105                                 (
 106                                         set -x
 107                                         sed -i "p; s/ $suite main$/ ${suite}-updates main/" "$rootfsDir/etc/apt/sources.list"
 108                                 )
 109                         fi
 110                         ;;
 111                 steamos|SteamOS)
 112                         # add contrib and non-free
 113                         (
 114                                 set -x
 115                                 sed -i "s/ $suite main$/ $suite main contrib non-free/" "$rootfsDir/etc/apt/sources.list"
 116                         )
 117                         ;;
 118         esac
 119 fi
 120
 121 # make sure we're fully up-to-date, too
 122 (
 123         set -x
 124         chroot "$rootfsDir" apt-get update
 125         chroot "$rootfsDir" apt-get dist-upgrade -y
 126 )