debian/xvm-iscsi-config.postinst

   1 #!/bin/sh
   2 # postinst script for xvm-iscsi-config
   3 #
   4 # see: dh_installdeb(1)
   5
   6 set -e
   7
   8 # Source debconf library
   9 . /usr/share/debconf/confmodule
  10
  11 # summary of how this script can be called:
  12 #        * <postinst> `configure' <most-recently-configured-version>
  13 #        * <old-postinst> `abort-upgrade' <new version>
  14 #        * <conflictor's-postinst> `abort-remove' `in-favour' <package>
  15 #          <new-version>
  16 #        * <postinst> `abort-remove'
  17 #        * <deconfigured's-postinst> `abort-deconfigure' `in-favour'
  18 #          <failed-install-package> <version> `removing'
  19 #          <conflicting-package> <version>
  20 # for details, see http://www.debian.org/doc/debian-policy/ or
  21 # the debian-policy package
  22
  23 # dh_installdeb will replace this with shell code automatically
  24 # generated by other debhelper scripts.
  25
  26 #DEBHELPER#
  27
  28 case "$1" in
  29     configure)
  30         db_get xvm-iscsi-config/address
  31         ADDRESS="$RET"
  32         db_get xvm-iscsi-config/username
  33         USERNAME="$RET"
  34         db_get xvm-iscsi-config/password
  35         PASSWORD="$RET"
  36         db_stop
  37
  38         if [ -e /etc/invirt/conf.d/iscsi ]; then
  39           # invirt.config.run_parts_list excludes backup filenames.
  40           mv -f /etc/invirt/conf.d/iscsi /etc/invirt/conf.d/iscsi~
  41         fi
  42         cat >/etc/invirt/conf.d/iscsi <<EOF
  43 iscsi:
  44  address: $ADDRESS
  45  username: $USERNAME
  46  password: $PASSWORD
  47 EOF
  48         if [ -z "$2" ]; then
  49             invoke-rc.d xvm-iscsi-config restart
  50             invoke-rc.d open-iscsi restart
  51             iscsiadm -m discovery -t st -p $(invirt-getconf iscsi.address):3260
  52         elif ! diff /etc/invirt/conf.d/iscsi~ /etc/invirt/conf.d/iscsi >/dev/null; then
  53               cat <<EOF
  54 xvm-iscsi-config: The configuration has changed.  Restart iscsi:
  55   /etc/init.d/xvm-iscsi-config restart
  56   /etc/init.d/open-iscsi restart
  57   iscsiadm -m discovery -t st -p $(invirt-getconf iscsi.address):3260
  58   lvchange -a ln /dev/xenvg && lvchange -a y /dev/xenvg
  59 This will leave VMs unable to access their disks, so migrate them first.
  60
  61 EOF
  62         fi
  63     ;;
  64
  65     abort-upgrade|abort-remove|abort-deconfigure)
  66     ;;
  67
  68     *)
  69         echo "postinst called with unknown argument \`$1'" >&2
  70         exit 1
  71     ;;
  72 esac
  73
  74 exit 0