file used to initialize statelite images
git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@4789 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
This commit is contained in:
vallard
parent
db02438df7
commit
3b5a384b12
263
xCAT-server/share/xcat/netboot/add-on/statelite/rc.statelite
Executable file
263
xCAT-server/share/xcat/netboot/add-on/statelite/rc.statelite
Executable file
@ -0,0 +1,263 @@
|
||||
#!/bin/sh
|
||||
# rc.statelite will grab all the mount points we need to check
|
||||
# for keeping an image together. This will have to do until unionfs
|
||||
# is ready.
|
||||
# don't do chkconfig: 345 00 99
|
||||
# this file runs in a chroot environment.
|
||||
# description: statelite initialization script
|
||||
|
||||
# get all the database files.
|
||||
#set -x
|
||||
SL=".statelite"
|
||||
ME=`hostname`
|
||||
MNTDIR="/sysroot"
|
||||
SYNCTREE="${MNTDIR}/$SL/litetree" # the list of directories to sync from
|
||||
SYNCLIST="${MNTDIR}/$SL/litefile" # the list of files to sync
|
||||
TREEMOUNT="${MNTDIR}/$SL/mnt" # where I mount all the trees.
|
||||
PERSISTENT="${MNTDIR}/$SL/persistent/$ME"
|
||||
TMPFS="${MNTDIR}/$SL/tmpfs"
|
||||
DEFAULT="${MNTDIR}/.default"
|
||||
LOG="${MNTDIR}/${SL}/statelite.log"
|
||||
|
||||
|
||||
if [ ! -d $MNTDIR ]
|
||||
then
|
||||
echo "statelite is only to be run in initrdfs"
|
||||
exit 1
|
||||
fi
|
||||
|
||||
|
||||
|
||||
GetSyncInfo () {
|
||||
|
||||
# who is our xCAT server? He's most likely our dhcp identifier.
|
||||
|
||||
if [ ! -x ${MNTDIR}/usr/bin/openssl ]
|
||||
then
|
||||
echo "Image does not include openssl!"
|
||||
exit 1
|
||||
fi
|
||||
|
||||
# wish we had bash!
|
||||
#for x in `cat /proc/cmdline`; do
|
||||
# [[ "$x" = "XCAT=*" ]] || continue
|
||||
# XCATSERVER="${x#XCAT=}"
|
||||
#done
|
||||
|
||||
for i in `cat /proc/cmdline`; do
|
||||
KEY=`echo $i | awk -F= '{print $1}'`
|
||||
if [ "$KEY" == "XCAT" ]; then
|
||||
XCATSERVER=`echo $i | awk -F= '{print $2}'`
|
||||
break
|
||||
fi
|
||||
done
|
||||
|
||||
|
||||
if [ -z $XCATSERVER ]; then
|
||||
hn=`hostname`
|
||||
echo "Cannot find the xCAT server for node $hn"
|
||||
exit 1
|
||||
fi
|
||||
|
||||
# request the list of files from xCAT:
|
||||
xCATCmd $XCATSERVER litefile \
|
||||
| sed -e 's/<[^>]*>//g' \
|
||||
| egrep -v '^ *$' \
|
||||
| sed -e 's/^ *//' \
|
||||
| awk -F: '{print $2}' \
|
||||
| sed -e 's/^ *//' \
|
||||
> $SYNCLIST
|
||||
|
||||
# files will now be inside /.snapshot/tmpfs/synclist in the form:
|
||||
# options path
|
||||
xCATCmd $XCATSERVER litetree \
|
||||
| sed -e 's/<[^>]*>//g' \
|
||||
| egrep -v '^ *$' \
|
||||
| sed -e 's/^ *//' \
|
||||
| awk '{print $2}' \
|
||||
> $SYNCTREE
|
||||
}
|
||||
|
||||
xCATCmd () {
|
||||
# $1 is the xCAT server
|
||||
# $2 is the command
|
||||
echo "<xcatrequest>\n<command>${2}</command>\n</xcatrequest>" | LD_LIBRARY_PATH=/sysroot/lib64:/sysroot/usr/lib64 /sysroot/usr/bin/openssl s_client -quiet -connect ${1} -rand /bin/nice 2>/dev/null
|
||||
|
||||
}
|
||||
|
||||
|
||||
|
||||
MountTrees () {
|
||||
mkdir -p $TREEMOUNT
|
||||
if [ -z $SYNCTREE ]
|
||||
then
|
||||
echo "Can't read $SYNCTREE. Something is wrong with this image..." >/dev/console
|
||||
exit 1
|
||||
fi
|
||||
P=1
|
||||
for i in `cat $SYNCTREE | grep -v '^#'`;
|
||||
do
|
||||
mkdir $TREEMOUNT/$P
|
||||
MAX=10
|
||||
TRIES=1
|
||||
while ! mount $i $TREEMOUNT/$P -r -n -o nolock
|
||||
do
|
||||
if [ "$TRIES" = "$MAX" ]
|
||||
then
|
||||
echo "Can't mount $i. I give up.. ">/dev/console
|
||||
break
|
||||
#exit 1
|
||||
fi
|
||||
TRIES=`expr $TRIES + 1`
|
||||
S=`expr $RANDOM % 20`
|
||||
echo "Can't mount $i... Sleeping $S seconds then trying again" >/dev/console
|
||||
sleep $S
|
||||
done
|
||||
P=`expr $P + 1`
|
||||
done
|
||||
}
|
||||
|
||||
|
||||
ResolveLinks () {
|
||||
# go through each file and do the right thing to it.
|
||||
cat $SYNCLIST | grep -v "^#" | \
|
||||
while read type path
|
||||
do
|
||||
FindFile ${path} ${type}
|
||||
done
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
ProcessType () {
|
||||
#MOUNT=$1 # mount point where this is.
|
||||
#PATH=$2 # file
|
||||
#TYPE=$3 # type of file
|
||||
|
||||
# every type has to have a base dir in tmpfs
|
||||
if [ ! -d ${TMPFS}`dirname ${2}` ]
|
||||
then
|
||||
mkdir -p ${TMPFS}`dirname ${2}`
|
||||
echo "mkdir -p ${TMPFS}`dirname ${2}`" >>$LOG
|
||||
fi
|
||||
|
||||
|
||||
case "${3}" in
|
||||
tmpfs,rw)
|
||||
cp -a ${1} ${TMPFS}${2}
|
||||
echo "cp -a ${1} ${TMPFS}${2}" >>$LOG
|
||||
# the link will already be in place on the image, so nothing else to do!
|
||||
#mount -n --bind ${TMPFS}${2} ${1}
|
||||
;;
|
||||
con)
|
||||
# cons go in tmpfs
|
||||
cat ${1} >>${TMPFS}${2}
|
||||
echo "cat ${1} >>${TMPFS}${2}" >>$LOG
|
||||
|
||||
;;
|
||||
persistent*)
|
||||
# everything from root image points to tmpfs
|
||||
# so have tmpfs point to persistent
|
||||
|
||||
# make tree in persistent and tmpfs
|
||||
if [ ! -d ${PERSISTENT}`dirname ${2}` ]
|
||||
then
|
||||
mkdir -p ${PERSISTENT}`dirname ${2}`
|
||||
echo "mkdir -p ${PERSISTENT}`dirname ${2}`" >>$LOG
|
||||
fi
|
||||
|
||||
# if the file doesn't exist, then copy it over to persistent
|
||||
if [ ! -e ${PERSISTENT}${2} ]
|
||||
then
|
||||
#ln -s ${1} ${PERSISTENT}/${2}
|
||||
# if its not there, then take it from something else
|
||||
echo "cp -a ${1} ${PERSISTENT}${2}" >>$LOG
|
||||
cp -a ${1} ${PERSISTENT}${2} 2>&1 >>$LOG
|
||||
|
||||
#mount -n --bind ${TMPFS}${2} ${1}
|
||||
fi
|
||||
|
||||
# finally make the tmpfs link point to the persistent file
|
||||
|
||||
# you have to get rid of the /sysroot in the beginning
|
||||
# so that when the chroot happens the link is valid.
|
||||
LINK=`echo ${PERSISTENT}${2} | sed -e 's/^\/sysroot//'`
|
||||
echo "ln -sf ${LINK} ${TMPFS}${2}" >>$LOG
|
||||
ln -sf ${LINK} ${TMPFS}${2} >>$LOG 2>&1
|
||||
;;
|
||||
ro)
|
||||
# need to make sure directory exists:
|
||||
if [ ! -d ${TMPFS}`dirname ${2}` ]
|
||||
then
|
||||
mkdir -p ${TMPFS}`dirname ${2}` >>$LOG 2>&1
|
||||
fi
|
||||
TARGET=`echo ${TMPFS}${2} | sed -e 's/\/$//'`
|
||||
#LINK=`echo ${1} | sed -e "s/^${MNTDIR}//"`
|
||||
LINK=`echo ${1} | sed -e "s/^\/sysroot//"`
|
||||
|
||||
echo "ln -sf ${LINK} ${TARGET}" >>$LOG 2>&1
|
||||
ln -sf ${LINK} ${TARGET} >>$LOG 2>&1
|
||||
;;
|
||||
*)
|
||||
;;
|
||||
esac
|
||||
}
|
||||
|
||||
|
||||
FindFile () {
|
||||
# $1 = Pathname to locate
|
||||
# $2 = Type of file
|
||||
path=$1
|
||||
type=$2
|
||||
FOUND=0
|
||||
for DIR in `ls $TREEMOUNT`
|
||||
do
|
||||
if [ -e ${TREEMOUNT}/${DIR}${path} ]
|
||||
then
|
||||
FOUND=1 # we found it!
|
||||
ProcessType ${TREEMOUNT}/${DIR}${path} ${path} ${type}
|
||||
if [ "${2}" = "con" ]
|
||||
then
|
||||
1
|
||||
else
|
||||
break
|
||||
fi
|
||||
|
||||
fi
|
||||
done
|
||||
|
||||
|
||||
## Default behavior is to get from the image
|
||||
if [ "$FOUND" = "0" ]
|
||||
then
|
||||
if [ -e "${DEFAULT}${path}" ]
|
||||
then
|
||||
ProcessType ${DEFAULT}${path} ${path} ${type}
|
||||
else
|
||||
echo "Could not find ${path} in defaults or any other place" >/dev/console
|
||||
fi
|
||||
# if it wasn't found, mount rw in tmpfs
|
||||
fi
|
||||
}
|
||||
|
||||
|
||||
########################################################################################
|
||||
# Start / MAIN / main
|
||||
########################################################################################
|
||||
|
||||
# load up our files from xCAT
|
||||
GetSyncInfo
|
||||
|
||||
# mount all the tree roots. Usually there's probably only one.
|
||||
MountTrees
|
||||
|
||||
# find the file and then see if its the one we need.
|
||||
ResolveLinks
|
||||
|
||||
# make sure mtab points to the right place:
|
||||
ln -sf /proc/mounts ${TMPFS}/etc/mtab
|
||||
|
||||
# catch all hack for debugging:
|
||||
#cp -a ${DEFAULT}/* /.snapshot/tmpfs/
|
||||
# foo
|
||||
Loading…
Reference in New Issue
Block a user