usr_sbin/dirvish-setup

   1 #!/bin/sh
   2 # Filename:      dirvish-setup
   3 # Purpose:       create basic setup for dirvish(8)
   4 # Authors:       grml-team (grml.org), (c) Michael Prokop <mika@grml.org>
   5 # Bug-Reports:   see http://grml.org/bugs/
   6 # License:       This file is licensed under the GPL v2.
   7 # Latest change: Fre Feb 23 23:49:58 CET 2007 [mika]
   8 ################################################################################
   9 # Ressources:
  10 #   http://apt-get.dk/howto/backup/
  11 #   http://edseek.com/~jasonb/articles/dirvish_backup/advanced.html
  12 #   http://www.dirvish.org/svn/contrib/admin/DailyEmailScript/dirvish-status.sh
  13 ################################################################################
  14
  15 set -e
  16
  17 . /etc/grml/script-functions
  18 . /etc/grml/lsb-functions
  19
  20 check4root
  21 check4progs dirvish rsync ssh-keygen ssh-copy-id
  22
  23 PN="$0"
  24 CONFFILE=/etc/dirvish/master.conf
  25
  26 # make sure we don't lose any files
  27 if [ -f "$CONFFILE" ] ; then
  28    mv $CONFFILE $CONFFILE.$(date +%Y%m%d).$$
  29 fi
  30
  31 set +e
  32
  33 write_conffile() {
  34   cat > $CONFFILE << EOF
  35 # Configuration file for dirvish, created by $PN on $(date)
  36
  37 bank:
  38      $BACKUP_DIR
  39
  40 exclude:
  41       lost+found/
  42 #      core
  43 #      *~
  44 #      .nfs*
  45 #      var/cache/apt/archives
  46 #      var/cache/man
  47 #      tmp
  48 #      var/tmp
  49 #       /var/lib/nfs/*tab
  50 #       .kde/share/cache/*
  51 #       .firefox/default/*/Cache/*
  52
  53 Runall:
  54      $CLIENT 22:00
  55
  56 # See http://www.dirvish.org/debian.howto.html for further details:
  57 expire-default: +30 days
  58 expire-rule:
  59 #       MIN HR    DOM MON       DOW  STRFTIME_FMT
  60         *   *     *   *         1    +3 months
  61         *   *     1-7 *         1    +1 year
  62         *   *     1-7 1,4,7,10  1
  63         *   10-20 *   *         *    +4 days
  64 #       *   *     *   *         2-7  +15 days
  65
  66 EOF
  67 }
  68
  69 # TODO / integrate?
  70 cronsetup() {
  71   test -f ~/.keychain/`uname -n`-sh && source ~/.keychain/`uname -n`-sh
  72 }
  73
  74 get_backup_dir() {
  75   # prompt user for directory which should be used
  76   BACKUP_DIR="$(dialog --stdout --inputbox 'Please choose the directory where backups should be placed' 0 0 /backups)"
  77
  78   if ! [ -d "$BACKUP_DIR" ] ; then
  79     dialog --stdout --title "${PN}" --yesno "The directory $BACKUP_DIR does not yet exist. Do you want me to create it for you? " 0 0
  80
  81     if [ $? -eq 0 ]; then
  82        echo "mkdir $BACKUP_DIR"
  83        echo "chmod 700 $BACKUP_DIR"
  84     else
  85        echo "warning: $BACKUP_DIR does not exist, skipped creation as requested"
  86     fi
  87   fi
  88 }
  89
  90 client_name() {
  91   CLIENT="$(dialog --stdout --inputbox 'Please choose the name for your client instance, also known as vault' 0 0 client1)"
  92 }
  93
  94 create_client_conf() {
  95   mkdir -p "${BACKUP_DIR}/${CLIENT}/dirvish"
  96   if [ -f "${BACKUP_DIR}/${CLIENT}/dirvish/default.conf" ] ; then
  97      ewarn "Warning: ${BACKUP_DIR}/${CLIENT}/dirvish/default.conf exists already, ignoring creation." ; eend 0
  98   else
  99      cat > "${BACKUP_DIR}/${CLIENT}/dirvish/default.conf" << EOF
 100 # Configuration file of client-side for dirvish created by $PN on $(date)
 101 client: $CLIENTNAME
 102 tree: /home
 103 xdev: true
 104 index: gzip
 105 image-default: %Y-%m-%d
 106 exclude:
 107         var/cache/apt/archives/*
 108         var/cache/man/*
 109         tmp/*
 110         var/tmp/*
 111 rsh: ssh -i $HOME/.ssh/id_rsa_dirvish_${CLIENT}
 112 EOF
 113   fi
 114 }
 115
 116 sshkey_setup() {
 117   CLIENTNAME="$(dialog --stdout --inputbox 'Please choose user login and hostname for the client you want to backup. Syntax: user@host' 0 0 root@$(hostname))"
 118
 119   dialog --stdout --title "${PN}" --yesno "Do you want me to create ssh setup for client ${CLIENTNAME} using ssh-keygen and ssh-copy-id?" 0 0
 120
 121   if [ $? -eq 0 ]; then
 122      [ -d "$HOME/.ssh" ] || mkdir "$HOME/.ssh"
 123      einfo "Creating $HOME/.ssh/id_rsa_dirvish_${CLIENT} using ssh-keygen:"
 124      ssh-keygen -t rsa -f "$HOME/.ssh/id_rsa_dirvish_${CLIENT}" ; eend $?
 125      einfo "Running ssh-copy-id to copy ssh key to $CLIENTNAME:"
 126      ssh-copy-id -i "$HOME/.ssh/id_rsa_dirvish_${CLIENT}.pub" $CLIENTNAME ; eend $?
 127   fi
 128 }
 129
 130 client_setup() {
 131   dialog --stdout --title "${PN}" --yesno "Do you want to backup $CLIENT via network? Answering with no will use localhost [$(hostname)] as client." 0 0
 132
 133   if [ $? -eq 0 ]; then
 134      sshkey_setup
 135   else
 136      CLIENTNAME=$(hostname) # use localhost only
 137   fi
 138 }
 139
 140 display_info() {
 141   einfo "Running $PN was successful. Enjoy using dirvish!" ; eend 0
 142   echo
 143   einfo "Please adjust ${BACKUP_DIR}/${CLIENT}/dirvish/default.conf according to your needs.
 144 Then run the following command to create an initial backup:
 145
 146   dirvish --summary long --vault $CLIENT --init
 147
 148 Find the backup inside $BACKUP_DIR/$CLIENT/$(date +%Y-%m-%d)/tree/ then.
 149
 150 Documentation available at:
 151
 152     man dirvish-locate.1 dirvish.conf.5 dirvish.8 dirvish-runall.8 dirvish-expire.8
 153     /usr/share/doc/dirvish/HOWTO.upstream /usr/share/doc/dirvish/FAQ.html
 154     /usr/share/doc/dirvish/HOWTO.Debian.gz
 155
 156     http://www.dirvish.org/
 157     http://wiki.dirvish.org/
 158
 159 Please report bugs regarding ${PN}: http://grml.org/bugs/
 160 " ; eend 0
 161 }
 162
 163 case "$1" in
 164     -h | --help | --h* )
 165       echo "Usage: $PN" 1>&2
 166       exit 1
 167      ;;
 168 esac
 169
 170 # now run the funtions:
 171 get_backup_dir     && \
 172 client_name        && \
 173 client_setup       && \
 174 create_client_conf && \
 175 write_conffile     && \
 176 display_info
 177
 178 ## END OF FILE #################################################################
 179 # vim: ft=sh ai tw=80 expandtab