3 # Modifisert utgave av backup.sh som tar backup også på maskiner der kolje ikke har root.
6 confdir=/home/backup/conf/ #configuration files
7 storagedir=/backup #mountpoint of huge disc
11 exclude=$confdir/exclude
12 [ ! -f $exclude ] && printf "tmp\ncore\n" > $exclude
15 #syntax of remotestat:
17 remotestatf=$confdir/remotestat
18 [ -f $remotestatf ] && remotestat=`cat $remotestatf`
21 PATH=/local/bin:$PATH:/store/bin
27 echo "Exclude pattern:"
34 # The computers we want to back up
35 unixcomputers=`cat $confdir/computers.unix.nonpriv | grep -v ^# | grep -v ^$`
38 #disse bør kunne varieres fra fs til fs?
39 maksantallfulle=3 #hvor mange fulle vi tar vare på (kan overstyres med conf)
40 dagermellomfulle=30 #antall dager før det er på tide med ny full
45 DATE=`date "+%Y%m%d%H%M"` #format: touch
46 DATEs=`date "+%Y-%m-%d %H:%M"` #format: tar
50 # krever at noen variabler er satt
51 # krever at vi er i rett katalog
55 printf "%-${logw}s %s\n" "$computer:$filesystem" "$backuplevel backup"
57 if [ "$backuplevel" = "daglig" ] || [ "$backuplevel" = "incremental" ]
65 #expand the exclude-path for use with tar
66 exf=`ssh $username@$computer "ls ~/.backup/exclude"`
68 #We try to run tar on the remote computer
69 # C is instead of 'cd $filesystem'
70 # - is 'this directory'
71 # l is 'stay in local filesystem
72 if `ssh $username@$computer "sudo /usr/local/sbin/output-encrypted-backup $filesystem $lastcmd" | dd of=$DATE.tmp 2>/dev/null`
75 mv $DATE.tmp $DATE.tgz.gpg
77 # FIXME: ignore the file lists for now
80 chmod 600 *tgz.gpg #only for us
81 # chmod 644 *sdx *idx 2>/dev/null #everyone can read
83 echo $DATEs > ../.date &&
84 touch -t $DATE ../.date
87 rm $DATE.tmp 2>/dev/null
88 echo "$backuplevel backup of $computer:$filesystem failed and deleted"
93 #Løper gjennom listen av unixmaskiner som vi skal ta backup av
94 for computer in $unixcomputers
97 # find the user to do the non-root parts as
98 if [ -f $confdir/username.$computer ] ; then
99 username=`cat $confdir/username.$computer`
104 # Try to SSH to the computer without entering a password.
105 if `ssh -n -o NumberOfPasswordPrompts=0 $username@$computer /bin/true`; then
106 echo "Passwordless SSH to $username@$computer works."
108 echo "Could not use passwordless SSH to $username@$computer. Exiting."
112 # see if se have a local exclude file
113 if [ -f $confdir/exclude.$computer ] ; then
114 localexclude=$confdir/exclude.$computer
117 echo "Overriding local exclude pattern with:"
122 localexclude=$exclude
125 localmaksantallfulle=$maksantallfulle
126 # Sjekk om det skal være et annet antall fulle backuper av en boks
127 if [ -f $confdir/maksfulle.$computer ] ; then
128 localmaksantallfulle=`cat $confdir/maksfulle.$computer`
131 #tømmer variabelen for sikkerhets skyld
134 #Sjekker nest siste felt i fstab. Om det er 0 tar vi ikke backup
135 filesystems=`ssh -n $username@$computer "cat /etc/fstab" \
139 | awk '{ if ( $(NF-1) != "0" ) print $2}' `
141 #clean up our dir at this client
142 ssh $username@$computer "rm -r ~/.backup ; mkdir -m 700 ~/.backup"
144 #try to copy $exclude to $computer
145 scp $localexclude $username@$computer:~/.backup/exclude ||
146 echo "could not copy $localexclude to $computer :("
148 #try to copy preeexec and postexec if they exist
149 [ -f $confdir/preexec.$computer ] &&
150 scp $confdir/preexec.$computer $username@$computer:~/.backup/preexec
151 [ -f $confdir/postexec.$computer ] &&
152 scp $confdir/postexec.$computer $username@$computer:~/.backup/postexec
154 #try to run preexec if it exist
155 ssh $username@$computer "[ -f ~/.backup/preexec ] && /bin/bash -x ~/.backup/preexec"
157 for filesystem in $filesystems
159 #lager en variant uten tegnet "/" eller $ (gjelder NT)
160 sfilesystem=`echo $filesystem | tr '\/\$' '__'`
162 #lager det som trengs av kataloger
163 mkdir -m 755 -p $storagedir/$computer/$sfilesystem/{full,daglig} 2>/dev/null
166 echo $filesystem > ${storagedir}/${computer}/.${sfilesystem}.name
167 chmod 644 ${storagedir}/${computer}/.${sfilesystem}.name
169 #set default backuplevel
172 if [ ! -f $storagedir/$computer/$sfilesystem/.date ]
174 #take the first full backup of this filesystem on this computer
176 echo $DATEs > $storagedir/$computer/$sfilesystem/.date
179 #sjekker om det er på tide med en full
181 [ -z "`find $storagedir/$computer/$sfilesystem/full/ -name \*tgz.gpg -mtime -$dagermellomfulle`" ]
186 #gå ned i rett katalog
187 cd $storagedir/$computer/$sfilesystem/$backuplevel || exit 1
189 #perform the actual backup
192 #delete complete backups
193 mf=$(($localmaksantallfulle+1))
195 for full in `ls -1t $storagedir/$computer/$sfilesystem/full/*tgz.gpg | tail +$mf`
197 prefix=`echo $full | sed "s/\.[^.]*$//"`
198 echo "$computer:$filesystem sletter full $prefix (for mange)"
202 #delete incremental backups older than the oldest complete backup
203 oldf=`ls -t1 $storagedir/$computer/$sfilesystem/full/*tgz.gpg | tail -1`
205 $storagedir/$computer/$sfilesystem/daglig \
209 #denne funker bare med gnu find
210 #-printf "$computer:$filesystem sletter daglig %f (for gammel)\n" \
214 #try to run postexec if it exist
215 ssh $username@$computer "[ -f ~/.backup/postexec ] && /bin/bash -x ~/.backup/postexec"
220 #/home/backup/report.sh $storagedir > /tmp/report.txt
221 #[ ! -z $remotestat ] && scp /tmp/report.txt $remotestat
224 # print diskusage to logfile