gistfile1.txt

#!/bin/bash

# This script generates tools/bootstrap, which unpacks a chunk of puppet code from itself
# and runs puppet against it.

set -eu
SCRIPT=$( readlink -f "$0" )
HERE=$( dirname "$SCRIPT" )

STAGE=`tempfile --suffix build-puppet-bootstrap`
TAR=`tempfile --suffix build-puppet-bootstrap`

if [ "$BUILD_NUMBER" == "" ];then
  BUILD_NUMBER="handrolled"
fi

echo Building bootstrap into $STAGE
echo "#!/bin/bash" > $STAGE
echo >> $STAGE
echo '# DO NOT make changes to this file, it is autogenerated!' >> $STAGE
echo '# To make changes, please edit syssvn/puppet/tools/buildbootstrap' >> $STAGE
echo >> $STAGE

echo "echo 'Puppet bootstrap build ID: $BUILD_NUMBER'" >> $STAGE

# We go on to invoke puppet as root, so insist on being root to run
echo 'if [ $(id -un) != "root" ];then' >> $STAGE
echo '    echo "You must run this bootstrap script with sudo, or be root"' >> $STAGE
echo '    exit 1' >> $STAGE
echo 'fi' >> $STAGE

# Bail if puppet not installed
echo 'PUPPET=`which puppet`' >> $STAGE
echo 'if [ $? != 0 ];then' >> $STAGE
echo '    echo "Puppet is not installed on this machine, please install for bootstrapping"' >> $STAGE
echo '    exit 1' >> $STAGE
echo 'fi' >> $STAGE

# Make a temp directory and cd into it
echo 'UNPACKIN=`mktemp -d`' >> $STAGE
echo 'cd $UNPACKIN || exit 1' >> $STAGE

# Stuff a base 64'd tar file of relevant puppet modules (the ones included from bootstrap.pp) into the script,
# in a way that executing it will cause the blob of puppet code to get unpacked into the temporary directory
echo 'cat << 'EOF'|base64 -id -|tar xzf -'>>$STAGE
FILES_TO_INCLUDE=$(cat manifests/bootstrap.pp | egrep '^ *include '| cut -f 1 -d : | sed 's/include /modules\//g' | sed 's/ *//')
FILES_TO_INCLUDE="manifests/bootstrap.pp vendor/modules/stdlib vendor/modules/concat vendor/modules/apt modules/cron $FILES_TO_INCLUDE"
echo Including these files in the tar: "$FILES_TO_INCLUDE"
echo tar czf - manifests/bootstrap.pp $FILES_TO_INCLUDE
tar czf - $FILES_TO_INCLUDE |base64 ->>$STAGE

# Append base64 blob of puppet code into heredoc
rm $TAR
echo EOF >> $STAGE
echo >> $STAGE

# Invoke puppet now we're unpacked
echo 'echo "Unpacked puppet bootstrap in $UNPACKIN"' >> $STAGE
echo 'mkdir -p /var/lib/puppet/lib' >> $STAGE
echo 'cp -r modules/*/lib/* vendor/modules/*/lib/* /var/lib/puppet/lib/' >> $STAGE
echo 'puppet apply --modulepath=modules/:vendor/modules/ --templatedir files/ manifests/bootstrap.pp $@' >> $STAGE
echo 'if [ $? != 0 ];then' >> $STAGE
echo '    echo "Puppet run failed, leaving bootstrap files in $UNPACKIN"' >> $STAGE
echo '    exit 1' >> $STAGE
echo 'fi' >> $STAGE
echo 'rm -rf $UNPACKIN' >> $STAGE

cp $STAGE tools/bootstrap
chmod 775 tools/bootstrap
echo Bootstrap is now ready at tools/bootstrap