hcoop-backup

   1 #!/bin/bash -e
   2
   3 #
   4 # it is dangerous to remove the "-e" above; please don't do that.
   5 #
   6
   7 #
   8 # run this script as root, on deleuze
   9 #
  10
  11 PATH=$PATH:/bin:/usr/bin:/sbin:/usr/sbin
  12 #COMPRESS_EXT=.bz2
  13 #COMPRESS_PROG=bzip2
  14 COMPRESS_EXT=.gz
  15 COMPRESS_PROG=gzip
  16 KEYFILE=/etc/backup-encryption-key
  17 BACKUPTMP=/var/backups/hcoop-backup
  18 CURDATE=$(date -u +%Y.%m.%d)
  19
  20 MOVE_OVER=$(dirname $0)/rsync.net-move-over
  21
  22 IFS=$'\n'
  23
  24 # Initialize storage area
  25 RSYNCDIR=/vicepa/hcoop-backups/files
  26 rm -fr $RSYNCDIR
  27 mkdir -p $RSYNCDIR/$CURDATE
  28 chmod -R og= $RSYNCDIR
  29
  30 # Initialize backup staging area
  31 mkdir -p $BACKUPTMP
  32 cd $BACKUPTMP
  33
  34 groups
  35 echo "I am in: $(pwd)"
  36 echo
  37
  38 echo "Building package lists..."
  39 dpkg-query -W -f='${Package}\n' > packages
  40 (cd /; find / /usr/ /usr/local/ /var/ -xdev)   | sort | uniq > allfiles
  41 dpkg-query -W -f='${Package}\n'      | xargs dpkg -L | sort | uniq > debfiles
  42 dpkg-query -W -f='${Conffiles}\n'           | grep / | cut -b2- | \
  43   sed 's_ .*__' | sort | uniq > conffiles
  44
  45 diff allfiles debfiles | grep '^<' | cut -b 3- | \
  46  grep -v ^/var/cache | \
  47  grep -v ^/var/tmp | \
  48  grep -v ^/var/lib/dpkg | \
  49  grep -v ^/var/backups | \
  50  grep -v ^/var/lib/changetrack | \
  51  grep -v ^/var/local/lib/spamd | \
  52  grep -v ^/var/run | \
  53  grep -v ^/var/lock | \
  54  grep -v ^/var/lib/ucf | \
  55  grep -v ^/vicepa | \
  56  grep -v ^/home | \
  57  grep -v ^/tmp | \
  58  grep -v '^/afs$' | \
  59  grep -v '^/$' | \
  60  grep -v '^/usr/$' | \
  61  grep -v ^/usr/src | \
  62  grep -v '^/usr/.*\.pyc' | \
  63  grep -v '^/usr/.*\.elc' | \
  64  grep -v '^/usr/bin/perldoc\.stub$' | \
  65  grep -v '^/usr/bin/.*\.notslocate$' | \
  66  grep -v '^/usr/lib/courier/.*\.rand$' | \
  67  grep -v '^/usr/lib/gconv/gconv-modules\.cache$' | \
  68  grep -v '^/usr/lib/graphviz/config$' | \
  69  grep -v '^/usr/lib/locale/locale-archive$' | \
  70  grep -v '^/usr/share/info/dir$' | \
  71  grep -v '^/usr/share/info/dir\.old$' | \
  72  grep -v '^/usr/share/emacs21/site-lisp/' | \
  73  grep -v '^/usr/share/emacs22/site-lisp/' | \
  74  grep -v '^/usr/share/snmp/mibs/\.index$' | \
  75  grep -v '^/usr/share/vim/addons/doc/tags$' \
  76  > backupfiles
  77
  78 cat conffiles >> backupfiles
  79
  80 cat backupfiles | \
  81  grep -v ^/home | \
  82  grep -v ^/usr/local | \
  83  grep -v ^/var/spool | \
  84  grep -v ^/var/log | \
  85  grep -v ^/usr/lib/python2.4/ | \
  86  grep -v ^/var/lib/python-support | \
  87  grep -v ^/usr/share/jed/lib | \
  88  grep -v ^/usr/share/man | \
  89  grep -v ^/usr/share/perl5/IkiWiki/Plugin | \
  90  grep -v ^/media | \
  91  grep -v ^/vmlinuz | \
  92  grep -v ^/vmlinuz.old | \
  93  grep -v '^/sbin/[a-z\-]*\.modutils$' | \
  94  grep -v ^/opt | \
  95  grep -v ^/boot/ | \
  96  grep -v ^/dev/ | \
  97  grep -v ^/etc/ | \
  98  grep -v ^/root/ | \
  99  grep -v ^/var/ | \
 100  grep -v ^/lib/modules/ | \
 101  grep -v ^/var/domtool/ | \
 102  grep -v ^/var/lib/mysql/ | \
 103  grep -v ^/var/lib/postgres/ | \
 104  grep -v ^/var/lib/postgresql/ | \
 105  xargs -I{} -d\\n -- bash -c "test -L '{}' || echo '{}'" > complain
 106
 107 F=hcoop.backup.tar$COMPRESS_EXT.aescrypt
 108 tar clpf - --ignore-failed-read --no-recursion -C / -T backupfiles | \
 109   $COMPRESS_PROG | \
 110   ccrypt -k $KEYFILE -e | \
 111   $MOVE_OVER $CURDATE $F
 112
 113 # Acquire lock before messing with spamd
 114 COUNT=0
 115 LOCK=/var/local/lib/spamd/.lock
 116 while test -f $LOCK; do
 117     sleep 2m
 118     COUNT=$(expr $COUNT + 1)
 119     if test $COUNT -eq 10; then
 120         # Enough waiting.  Kill the process.
 121         P=$(cat $LOCK) || :
 122         test -n "$P" && kill $P || :
 123         rm -f $LOCK
 124         break
 125     fi
 126 done
 127 touch $LOCK
 128
 129 F=common.spamd.tar$COMPRESS_EXT.aescrypt
 130 tar clpf - --ignore-failed-read -C / /var/local/lib/spamd | \
 131   $COMPRESS_PROG | \
 132   ccrypt -k $KEYFILE -e > $F
 133 rm -f $LOCK
 134 < $F $MOVE_OVER $CURDATE $F
 135 rm -f $F
 136
 137 vos listvol deleuze | \
 138   tail -n +2 | \
 139   head -n -3 | \
 140   cut -b1-34 | \
 141   grep -v "\.backup .*$" | \
 142   grep -v "\.readonly .*$" | \
 143   sed 's_^ .*__' | \
 144   sed 's_ .*$__' | \
 145   grep '[A-Za-z]' \
 146   > volumes
 147
 148 cat volumes | \
 149   grep -v not-backed-up | \
 150   xargs -I{} -d\\n -- \
 151   bash -e -c \
 152     "F={}.dump$COMPRESS_EXT.aescrypt ;
 153      vos dump -id {} -localauth -clone |
 154        $COMPRESS_PROG | ccrypt -k $KEYFILE -e |
 155        $MOVE_OVER $CURDATE \$F" || :
 156
 157 echo "Backing up databases ..."
 158 F=databases.tar$COMPRESS_EXT.aescrypt
 159 tar -C /var/backups/databases/ -cf - . | \
 160   $COMPRESS_PROG | \
 161   ccrypt -k $KEYFILE -e | \
 162   $MOVE_OVER $CURDATE $F
 163
 164 # Update file permissions so that rsync.net can access the backups
 165 chmod -R go=,u-w $RSYNCDIR
 166 chmod u+w $RSYNCDIR
 167 chown -R rsync $RSYNCDIR/$CURDATE
 168
 169 # Complain to admins if there are unknown files
 170 grep '[a-z/]' complain && \
 171   mail -a 'From: The Backup Program <backups@deleuze.hcoop.net>' \
 172        -s "automated message: annoying files found on deleuze (please do something about them)" admins@hcoop.net \
 173        < complain \
 174   || :
 175
 176 echo "Done."