The changeset revamps the vserver-reference package by changing the

[sliceimage.git] / build.sh

diff --git a/build.sh b/build.sh
index 5859421..e777822 100755 (executable)
--- a/build.sh
+++ b/build.sh
@@ -1,9 +1,16 @@
 #!/bin/bash
 #
-# Builds VServer reference image
+# Builds all reference image for vservers.  To optimize for space it
+# will only build a complete base vserver reference image and then
+# builds "stub" images that are just contain the additional files
+# and/or changes for a given reference image.  This is done to shrink
+# the RPM itself.  These will be pieced back together with the base
+# vserver reference image by an init script that is installed on the
+# node.
 #
 # Mark Huang <mlhuang@cs.princeton.edu>
-# Copyright (C) 2004-2006 The Trustees of Princeton University
+# Marc E. Fiuczynski <mef@cs.princeton.edu>
+# Copyright (C) 2004-2007 The Trustees of Princeton University
 #
 # $Id: build.sh,v 1.20 2007/09/06 20:41:23 faiyaza Exp $
 #
@@ -30,56 +37,66 @@ pl_process_fedora_options $@
 shiftcount=$?
 shift $shiftcount
 
-# XXX this should be coming from some configuration file
-# Packages to install
-packagelist=(
-bash
-coreutils
-iputils
-kernel-vserver
-bzip2
-crontabs
-diffutils
-logrotate
-openssh-clients
-passwd
-rsh
-rsync
-sudo
-tcpdump
-telnet
-traceroute
-time
-vixie-cron
-wget
-which
-yum
-curl
-gzip
-perl
-python
-tar
-jre
-findutils
-filesystem
-)
-
-# vserver-reference packages used for reference image
-for package in "${packagelist[@]}" ; do
-    packages="$packages -p $package"
-done
-
 # Do not tolerate errors
 set -e
 
-# Make /vservers
-vroot=$PWD/vservers/.vref/default
-install -d -m 755 $vroot
+# Path's to the vserver references images and stubs
+vrefdir=$PWD/vservers/.vref
+vstubdir=$PWD/vservers/.vstub
+
+# XXX: The vserver reference name should be passed in as an argument
+# rather than being hardcoded.
+vrefname=default
+
+# Make /vservers and default vserver reference image
+vref=${vrefdir}/${vrefname}
+install -d -m 755 ${vref}
+
+# "Parse" out the packages and groups for mkfedora
+vrefpackages=$(grep "^package:.*" vserver-reference.lst | awk '{print $2}')
+vrefgroups=$(grep "^group:.*" vserver-reference.lst | awk '{print $2}')
+options=""
+for package in ${vrefpackages} ; do  options="$options -p $package"; done
+for group in ${vrefgroups} ; do options="$options -g $group"; done
 
 # Populate a minimal /dev in the reference image
-pl_makedevs $vroot
+pl_makedevs ${vref}
 
 # Populate image with vserver-reference packages
-pl_setup_chroot $vroot $packages
+pl_setup_chroot ${vref} ${options}
+
+for systemvserver in reference-vservers/*.lst ; do
+    NAME=$(basename $systemvserver .lst)
+
+    # "Parse" out the packages and groups for yum
+    systempackages=$(grep "^package:.*" $systemvserver | awk '{print $2}')
+    systemgroups=$(grep "^group:.*" $systemvserver | awk '{print $2}')
+
+    vdir=${vstubdir}/${NAME}
+    install -d -m 755 ${vdir}
+
+    # Clone the base vserver reference to the system vserver reference
+    # OPTIMIZATION: Consider using "cp -al" in the future
+    rsync -a ${vref}/ ${vdir}/
+    rm -f ${vdir}/var/lib/rpm/__db*
+
+    # Communicate to the initialization script from which vref this stub was cloned
+    echo ${vrefname} > ${vdir}.cloned
+
+    # Construct the excludes & includes patterns for rsync
+    (cd ${vdir} && find *) > ${vdir}.excludes
+    echo "var/lib/rpm/*" > ${vdir}.includes
+
+    # Install the system vserver specific packages
+    [ -n "$systempackages" ] && yum -c ${vdir}/etc/yum.conf --installroot=${vdir} -y install $systempackages
+    [ -n "$systemgroups" ] && yum -c ${vdir}/etc/yum.conf --installroot=${vdir} -y groupinstall $systemgroups
+
+    # Create a copy of the system vserver w/o the vserver reference files
+    mkdir -p ${vdir}-tmp/
+    rsync -a --include-from=${vdir}.includes --exclude-from=${vdir}.excludes ${vdir}/ ${vdir}-tmp/
+    rm -rf ${vdir}
+    rm -f ${vdir}.excludes ${vdir}.includes
+    mv ${vdir}-tmp ${vdir}
+done
 
 exit 0