Synnefo » snf-ganeti

#!/bin/bash

#Configuration

: ${ARCH:=amd64}

: ${DIST_RELEASE:=squeeze}

: ${CONF_DIR:=/etc/schroot/chroot.d}

: ${CHROOT_DIR:=/srv/chroot}

: ${ALTERNATIVE_EDITOR:=/usr/bin/vim.basic}

: ${CHROOT_FINAL_HOOK:=/bin/true}

# Additional Variables taken from the environmen

# DATA_DIR

# CHROOT_EXTRA_DEBIAN_PACKAGES

#Automatically generated variables

CHROOTNAME=$DIST_RELEASE-$ARCH

CHNAME=building_$CHROOTNAME

TEMP_CHROOT_CONF=$CONF_DIR/$CHNAME.conf

FINAL_CHROOT_CONF=$CHROOTNAME.conf

ROOT=`pwd`

CHDIR=$ROOT/$CHNAME

USER=`whoami`

COMP_FILENAME=$CHROOTNAME.tar.gz

COMP_FILEPATH=$ROOT/$COMP_FILENAME

TEMP_DATA_DIR=`mktemp -d`

ACTUAL_DATA_DIR=$DATA_DIR

ACTUAL_DATA_DIR=${ACTUAL_DATA_DIR:-$TEMP_DATA_DIR}

#Runnability checks

if [ $USER != 'root' ]

then

  echo "This script requires root permissions to run"

  exit

fi

if [ -f $TEMP_CHROOT_CONF ]

then

  echo "The configuration file name for the temporary chroot"

  echo "  $TEMP_CHROOT_CONF"

  echo "already exists."

  echo "Remove it or change the CHNAME value in the script."

  exit

fi

#Create configuration dir and files if they do not exist

if [ ! -d $ACTUAL_DATA_DIR ]

then

  mkdir $ACTUAL_DATA_DIR

  echo "The data directory"

  echo "  $ACTUAL_DATA_DIR"

  echo "has been created."

fi

if [ ! -f $ACTUAL_DATA_DIR/final.schroot.conf.in ]

then

  cat <<END >$ACTUAL_DATA_DIR/final.schroot.conf.in

[${CHROOTNAME}]

description=Debian ${DIST_RELEASE} ${ARCH}

groups=src

source-root-groups=root

type=file

file=${CHROOT_DIR}/${COMP_FILENAME}

END

  echo "The file"

  echo " $ACTUAL_DATA_DIR/final.schroot.conf.in"

  echo "has been created with default configurations."

fi

if [ ! -f $ACTUAL_DATA_DIR/temp.schroot.conf.in ]

then

  cat <<END >$ACTUAL_DATA_DIR/temp.schroot.conf.in

[${CHNAME}]

description=Debian ${DIST_RELEASE} ${ARCH}

directory=${CHDIR}

groups=src

users=root

type=directory

END

  echo "The file"

  echo " $ACTUAL_DATA_DIR/temp.schroot.conf.in"

  echo "has been created with default configurations."

fi

#Stop on errors

set -e

#Cleanup

rm -rf $CHDIR

mkdir $CHDIR

#Install tools for building chroots

apt-get install -y schroot debootstrap

shopt -s expand_aliases

alias in_chroot='schroot -c $CHNAME -d / '

function subst_variables {

  sed \

    -e "s/\${ARCH}/$ARCH/" \

    -e "s*\${CHDIR}*$CHDIR*" \

    -e "s/\${CHNAME}/$CHNAME/" \

    -e "s/\${CHROOTNAME}/$CHROOTNAME/" \

    -e "s*\${CHROOT_DIR}*$CHROOT_DIR*" \

    -e "s/\${COMP_FILENAME}/$COMP_FILENAME/" \

    -e "s/\${DIST_RELEASE}/$DIST_RELEASE/" $@

}

#Generate chroot configurations

cat $ACTUAL_DATA_DIR/temp.schroot.conf.in | subst_variables > $TEMP_CHROOT_CONF

cat $ACTUAL_DATA_DIR/final.schroot.conf.in | subst_variables > $FINAL_CHROOT_CONF

#Install the base system

debootstrap --arch $ARCH $DIST_RELEASE $CHDIR

APT_INSTALL="apt-get install -y --no-install-recommends"

echo "deb http://backports.debian.org/debian-backports" \

     "$DIST_RELEASE-backports main contrib non-free" \

     > $CHDIR/etc/apt/sources.list.d/backports.list

#Install all the packages

in_chroot -- \

  apt-get update

# do not install libghc6-network-dev, since it's too old, and just

# confuses the dependencies

in_chroot -- \

  $APT_INSTALL \

    autoconf automake \

    ghc cabal-install \

    libghc6-curl-dev \

    libghc6-parallel-dev \

    libghc6-text-dev \

    libghc6-vector-dev \

    libpcre3-dev \

    hlint hscolour pandoc \

    graphviz socat qemu-utils \

    python-docutils \

    python-simplejson \

    python-pyparsing \

    python-pyinotify \

    python-pycurl \

    python-ipaddr \

    python-yaml \

    python-paramiko

in_chroot -- \

  $APT_INSTALL python-setuptools python-dev build-essential

in_chroot -- \

  easy_install \

    logilab-astng==0.20.1 \

    logilab-common==0.50.3 \

    mock==1.0.1 \

    pylint==0.25.1

in_chroot -- \

  easy_install \

    sphinx==1.1.3 \

    pep8==1.2 \

    coverage==3.4 \

    bitarray==0.8.0

in_chroot -- \

  cabal update

in_chroot -- \

  cabal install --global \

    network==2.3 \

    regex-pcre==0.94.2 \

    hinotify==0.3.2 \

    hslogger==1.1.4 \

    quickcheck==2.5.1.1 \

    attoparsec==0.10.1.1 \

    crypto==4.2.4 \

    MonadCatchIO-transformers==0.2.2.0 \

    mtl==2.0.1.0 \

    hashable==1.1.2.0 \

    case-insensitive==0.3 \

    parsec==3.0.1 \

    network==2.3 \

    snap-server==0.8.1 \

    json==0.4.4

in_chroot -- \

  cabal install --global \

    hunit==1.2.5.2 \

    happy==1.18.10 \

    hlint==1.8.34 \

    hscolour==1.20.3 \

    temporary==1.1.2.3 \

    test-framework==0.6.1 \

    test-framework-hunit==0.2.7 \

    test-framework-quickcheck2==0.2.12.3

in_chroot -- \

  cabal install --global cabal-file-th

in_chroot -- \

  cabal install --global shelltestrunner

#Install selected packages from backports

in_chroot -- \

  $APT_INSTALL -t squeeze-backports \

    git \

    git-email \

    vim

in_chroot -- \

  $APT_INSTALL sudo fakeroot rsync locales less

echo "en_US.UTF-8 UTF-8" >> $CHDIR/etc/locale.gen

in_chroot -- \

  locale-gen

in_chroot -- \

  $APT_INSTALL lvm2 ssh bridge-utils iproute iputils-arping \

               ndisc6 python python-pyopenssl openssl \

               python-mock \

               socat fping

in_chroot -- \

  $APT_INSTALL qemu-utils

in_chroot -- \

  easy_install affinity

#Python development tools

in_chroot -- \

  $APT_INSTALL pandoc python-epydoc

#Tools for creating debian packages

in_chroot -- \

  $APT_INSTALL debhelper quilt

# extra debian packages

for package in $CHROOT_EXTRA_DEBIAN_PACKAGES

do in_chroot -- \

  $APT_INSTALL $package

done

#Set default editor

in_chroot -- \

  update-alternatives --set editor $ALTERNATIVE_EDITOR

# Final user hook

in_chroot -- $CHROOT_FINAL_HOOK

rm -f $COMP_FILEPATH

echo "Creating compressed schroot image..."

cd $CHDIR

tar czf $COMP_FILEPATH ./*

cd $ROOT

rm -rf $CHDIR

rm -f $TEMP_CHROOT_CONF

rm -rf $TEMP_DATA_DIR

echo "Chroot created. In order to run it:"

echo " * Copy the file $FINAL_CHROOT_CONF to $CONF_DIR/$FINAL_CHROOT_CONF"

echo " * Copy the file $COMP_FILEPATH to $CHROOT_DIR/$COMP_FILENAME"

echo "Then run \"schroot -c $CHROOTNAME\""