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 # Backup only one computer, from command line?
43 #disse bør kunne varieres fra fs til fs?
44 maksantallfulle=3 #hvor mange fulle vi tar vare på (kan overstyres med conf)
45 dagermellomfulle=30 #antall dager før det er på tide med ny full
50 DATE=`date "+%Y%m%d%H%M"` #format: touch
51 DATEs=`date "+%Y-%m-%d %H:%M"` #format: tar
55 # krever at noen variabler er satt
56 # krever at vi er i rett katalog
60 printf "%-${logw}s %s\n" "$computer:$filesystem" "$backuplevel backup"
62 if [ "$backuplevel" = "daglig" ] || [ "$backuplevel" = "incremental" ]
70 #expand the exclude-path for use with tar
71 exf=`ssh $username@$computer "ls ~/.backup/exclude"`
73 #We try to run tar on the remote computer
74 # C is instead of 'cd $filesystem'
75 # - is 'this directory'
76 # l is 'stay in local filesystem
77 if `ssh $username@$computer "sudo /usr/local/sbin/output-encrypted-backup $filesystem $lastcmd" | dd of=$DATE.tmp 2>/dev/null`
80 mv $DATE.tmp $DATE.tgz.gpg
82 # FIXME: ignore the file lists for now
85 chmod 600 *tgz.gpg #only for us
86 # chmod 644 *sdx *idx 2>/dev/null #everyone can read
88 echo $DATEs > ../.date &&
89 touch -t $DATE ../.date
92 rm $DATE.tmp 2>/dev/null
93 echo "$backuplevel backup of $computer:$filesystem failed and deleted"
98 #Løper gjennom listen av unixmaskiner som vi skal ta backup av
99 for computer in $unixcomputers
102 # find the user to do the non-root parts as
103 if [ -f $confdir/username.$computer ] ; then
104 username=`cat $confdir/username.$computer`
109 # Try to SSH to the computer without entering a password.
110 if `ssh -n -o NumberOfPasswordPrompts=0 $username@$computer /bin/true`; then
111 echo "Passwordless SSH to $username@$computer works."
113 echo "Could not use passwordless SSH to $username@$computer. Exiting."
117 # see if se have a local exclude file
118 if [ -f $confdir/exclude.$computer ] ; then
119 localexclude=$confdir/exclude.$computer
122 echo "Overriding local exclude pattern with:"
127 localexclude=$exclude
130 localmaksantallfulle=$maksantallfulle
131 # Sjekk om det skal være et annet antall fulle backuper av en boks
132 if [ -f $confdir/maksfulle.$computer ] ; then
133 localmaksantallfulle=`cat $confdir/maksfulle.$computer`
136 #tømmer variabelen for sikkerhets skyld
139 #Sjekker nest siste felt i fstab. Om det er 0 tar vi ikke backup
140 filesystems=`ssh -n $username@$computer "cat /etc/fstab" \
144 | awk '{ if ( $(NF-1) != "0" ) print $2}' `
146 #clean up our dir at this client
147 ssh $username@$computer "rm -r ~/.backup ; mkdir -m 700 ~/.backup"
149 #try to copy $exclude to $computer
150 scp $localexclude $username@$computer:~/.backup/exclude ||
151 echo "could not copy $localexclude to $computer :("
153 #try to copy preeexec and postexec if they exist
154 [ -f $confdir/preexec.$computer ] &&
155 scp $confdir/preexec.$computer $username@$computer:~/.backup/preexec
156 [ -f $confdir/postexec.$computer ] &&
157 scp $confdir/postexec.$computer $username@$computer:~/.backup/postexec
159 #try to run preexec if it exist
160 ssh $username@$computer "[ -f ~/.backup/preexec ] && /bin/bash -x ~/.backup/preexec"
162 for filesystem in $filesystems
164 #lager en variant uten tegnet "/" eller $ (gjelder NT)
165 sfilesystem=`echo $filesystem | tr '\/\$' '__'`
167 #lager det som trengs av kataloger
168 mkdir -m 755 -p $storagedir/$computer/$sfilesystem/full 2>/dev/null
169 mkdir -m 755 -p $storagedir/$computer/$sfilesystem/daglig 2>/dev/null
172 echo $filesystem > ${storagedir}/${computer}/.${sfilesystem}.name
173 chmod 644 ${storagedir}/${computer}/.${sfilesystem}.name
175 #set default backuplevel
178 if [ ! -f $storagedir/$computer/$sfilesystem/.date ]
180 #take the first full backup of this filesystem on this computer
182 echo $DATEs > $storagedir/$computer/$sfilesystem/.date
185 #sjekker om det er på tide med en full
187 [ -z "`find $storagedir/$computer/$sfilesystem/full/ -name \*tgz.gpg -mtime -$dagermellomfulle`" ]
192 #gå ned i rett katalog
193 cd $storagedir/$computer/$sfilesystem/$backuplevel || exit 1
195 #perform the actual backup
198 #delete complete backups
199 mf=$(($localmaksantallfulle+1))
201 for full in `ls -1t $storagedir/$computer/$sfilesystem/full/*tgz.gpg | tail -n +$mf`
203 prefix=`echo $full | sed "s/\.[^.]*$//"`
204 echo "$computer:$filesystem sletter full $prefix (for mange)"
208 #delete incremental backups older than the oldest complete backup
209 oldf=`ls -t1 $storagedir/$computer/$sfilesystem/full/*tgz.gpg | tail -n 1`
211 $storagedir/$computer/$sfilesystem/daglig \
215 #denne funker bare med gnu find
216 #-printf "$computer:$filesystem sletter daglig %f (for gammel)\n" \
220 #try to run postexec if it exist
221 ssh $username@$computer "[ -f ~/.backup/postexec ] && /bin/bash -x ~/.backup/postexec"
226 #/home/backup/report.sh $storagedir > /tmp/report.txt
227 #[ ! -z $remotestat ] && scp /tmp/report.txt $remotestat
230 # print diskusage to logfile