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 exec >& /var/log/backup-to-s3-log
  12
  13 PATH=$PATH:/bin:/usr/bin:/sbin:/usr/sbin
  14 #COMPRESS_EXT=.bz2
  15 #COMPRESS_PROG=bzip2
  16 COMPRESS_EXT=.gz
  17 COMPRESS_PROG=gzip
  18 # units for BWLIMIT are KB/s
  19 BWLIMIT=325
  20
  21 IFS=$'\n'
  22
  23 SCRIPTDIR=$(dirname $0)
  24 KEYFILE=/etc/backup-encryption-key
  25 BACKUPDIR=/hcoop.net-backups
  26 BACKUPTMP=/var/backups/hcoop-backup-testing
  27 SUBDIR=`date +%Y.%m.%d`
  28
  29 S3_ACCESS_KEY=$(cat ~mwolson_admin/.amazon/access.key)
  30 S3_SECRET_KEY_FILE=~mwolson_admin/.amazon/secret.key
  31
  32 function s3_cmd () {
  33     local cmd=$1
  34     shift
  35     $SCRIPTDIR/s3-$cmd -k $S3_ACCESS_KEY -s $S3_SECRET_KEY_FILE $@
  36 }
  37
  38 function copy_over () {
  39     # Move file to its offsite destination
  40     # $1: file, $2: relative directory (optional)
  41     if test -z "$1" || test -n "$3"; then
  42         echo "Bad programming"
  43         exit 1
  44     fi
  45     local FILE=$1
  46     local DEST=$BACKUPDIR/$SUBDIR
  47     if test -n "$2"; then
  48         DEST=$DEST/$2
  49     fi
  50     s3_cmd put -b ${BWLIMIT}K -T $FILE $DEST/$FILE
  51     rm -f $FILE
  52 }
  53
  54 function prune_old_backups () {
  55     local oldpwd=$PWD
  56     cd $BACKUPDIR
  57     find . -mindepth 1 -maxdepth 1 -type d -ctime +7 \
  58         -execdir rm -fr '{}' \; || true
  59     rm -rf $SUBDIR
  60     mkdir -p $SUBDIR
  61     cd $oldpwd
  62 }
  63
  64 prune_old_backups
  65
  66 mkdir -p $BACKUPTMP
  67 cd $BACKUPTMP
  68
  69 groups
  70 echo 'I am in:'
  71 pwd
  72 echo
  73
  74 echo building package lists...
  75 dpkg-query -W -f='${Package}\n' > packages
  76 (cd /; find / /usr/ /usr/local/ /var/ -xdev)   | sort | uniq > allfiles
  77 dpkg-query -W -f='${Package}\n'      | xargs dpkg -L | sort | uniq > debfiles
  78 dpkg-query -W -f='${Conffiles}\n'           | grep / | cut -b2- | \
  79   sed 's_ .*__' | sort | uniq > conffiles
  80
  81 diff allfiles debfiles | grep '^<' | cut -b 3- | \
  82  grep -v ^/var/cache | \
  83  grep -v ^/var/tmp | \
  84  grep -v ^/var/lib/dpkg | \
  85  grep -v ^/var/backups | \
  86  grep -v ^/var/lib/changetrack | \
  87  grep -v ^/var/local/lib/spamd | \
  88  grep -v ^/var/run | \
  89  grep -v ^/var/lock | \
  90  grep -v ^/var/lib/ucf | \
  91  grep -v ^/vicepa | \
  92  grep -v ^/home | \
  93  grep -v ^/tmp | \
  94  grep -v '^/afs$' | \
  95  grep -v '^/$' | \
  96  grep -v '^/usr/$' | \
  97  grep -v ^/usr/src | \
  98  grep -v '^/usr/.*\.pyc' | \
  99  grep -v '^/usr/.*\.elc' | \
 100  grep -v '^/usr/bin/perldoc\.stub$' | \
 101  grep -v '^/usr/bin/.*\.notslocate$' | \
 102  grep -v '^/usr/lib/courier/.*\.rand$' | \
 103  grep -v '^/usr/lib/gconv/gconv-modules\.cache$' | \
 104  grep -v '^/usr/lib/graphviz/config$' | \
 105  grep -v '^/usr/lib/locale/locale-archive$' | \
 106  grep -v '^/usr/share/info/dir$' | \
 107  grep -v '^/usr/share/info/dir\.old$' | \
 108  grep -v '^/usr/share/emacs21/site-lisp/' | \
 109  grep -v '^/usr/share/emacs22/site-lisp/' | \
 110  grep -v '^/usr/share/snmp/mibs/\.index$' | \
 111  grep -v '^/usr/share/vim/addons/doc/tags$' \
 112  > backupfiles
 113
 114 cat conffiles >> backupfiles
 115
 116 cat backupfiles | \
 117  grep -v ^/home | \
 118  grep -v ^/usr/local | \
 119  grep -v ^/var/spool | \
 120  grep -v ^/var/log | \
 121  grep -v ^/usr/lib/python2.4/ | \
 122  grep -v ^/var/lib/python-support | \
 123  grep -v ^/usr/share/jed/lib | \
 124  grep -v ^/usr/share/man | \
 125  grep -v ^/usr/share/perl5/IkiWiki/Plugin | \
 126  grep -v ^/media | \
 127  grep -v ^/vmlinuz | \
 128  grep -v ^/vmlinuz.old | \
 129  grep -v '^/sbin/[a-z\-]*\.modutils$' | \
 130  grep -v ^/opt/dell/srvadmin/ | \
 131  grep -v ^/boot/ | \
 132  grep -v ^/dev/ | \
 133  grep -v ^/etc/ | \
 134  grep -v ^/root/ | \
 135  grep -v ^/var/ | \
 136  grep -v ^/lib/modules/ | \
 137  grep -v ^/var/domtool/ | \
 138  grep -v ^/var/lib/mysql/ | \
 139  grep -v ^/var/lib/postgres/ | \
 140  grep -v ^/var/lib/postgresql/ | \
 141  xargs -I{} -d\\n -- bash -c "test -L '{}' || echo '{}'" > complain
 142
 143 F=hcoop.backup.tar$COMPRESS_EXT.aescrypt
 144 tar clpf - --ignore-failed-read --no-recursion -C / -T backupfiles | \
 145   $COMPRESS_PROG | \
 146   ccrypt -k $KEYFILE -e > $F
 147 copy_over $F
 148
 149 # Acquire lock before messing with spamd
 150 COUNT=0
 151 LOCK=/var/local/lib/spamd/.lock
 152 while test -f $LOCK; do
 153     sleep 2m
 154     COUNT=$(expr $COUNT + 1)
 155     if test $COUNT -eq 10; then
 156         # Enough waiting.  Kill the process.
 157         P=$(cat $LOCK) || :
 158         test -n "$P" && kill $P || :
 159         rm -f $LOCK
 160         break
 161     fi
 162 done
 163 touch $LOCK
 164
 165 F=common.spamd.tar$COMPRESS_EXT.aescrypt
 166 tar clpf - --ignore-failed-read -C / /var/local/lib/spamd | \
 167   $COMPRESS_PROG | \
 168   ccrypt -k $KEYFILE -e > $F.new
 169 rm -f $LOCK
 170 copy_over $F.new ..
 171
 172 test -s $BACKUPDIR/$F.new && \
 173     mv $BACKUPDIR/$F.new $BACKUPDIR/$F
 174
 175 vos listvol deleuze | \
 176   tail -n +2 | \
 177   head -n -3 | \
 178   cut -b1-34 | \
 179   grep -v "\.backup .*$" | \
 180   grep -v "\.readonly .*$" | \
 181   sed 's_^ .*__' | \
 182   sed 's_ .*$__' | \
 183   grep '[A-Za-z]' \
 184   > volumes
 185
 186 cat volumes | \
 187   grep -v not-backed-up | \
 188   xargs -I{} -d\\n -- \
 189   bash -c \
 190     "F={}.dump$COMPRESS_EXT.aescrypt ;
 191      vos dump -id {} -localauth -clone |
 192        $COMPRESS_PROG | ccrypt -k $KEYFILE -e > \$F ;
 193      < \$F catsync -b $BWLIMIT $BACKUPDIR/$SUBDIR/\$F ;
 194      rm -f \$F"
 195
 196 echo backing up databases
 197 F=databases.tar$COMPRESS_EXT.aescrypt
 198 tar -C /var/backups/databases/ -cf - . | \
 199   $COMPRESS_PROG | \
 200   ccrypt -k $KEYFILE -e > $F
 201 copy_over $F
 202
 203 grep '[a-z/]' complain && \
 204   mail -a 'From: The Backup Program <backups@deleuze.hcoop.net>' \
 205        -s "automated message: annoying files found on deleuze (please do something about them)" admins@hcoop.net \
 206        < complain \
 207   || true
 208
 209 echo done
 210