debian/postinst

   1 #!/bin/sh
   2 # postinst script for monit-cn
   3 #
   4 # see: dh_installdeb(1)
   5
   6 set -e
   7
   8 # summary of how this script can be called:
   9 #        * <postinst> `configure' <most-recently-configured-version>
  10 #        * <old-postinst> `abort-upgrade' <new version>
  11 #        * <conflictor's-postinst> `abort-remove' `in-favour' <package>
  12 #          <new-version>
  13 #        * <deconfigured's-postinst> `abort-deconfigure' `in-favour'
  14 #          <failed-install-package> <version> `removing'
  15 #          <conflicting-package> <version>
  16 # for details, see http://www.debian.org/doc/debian-policy/ or
  17 # the debian-policy package
  18 #
  19
  20 case "$1" in
  21     configure|reconfigure)
  22       # continue below
  23     ;;
  24
  25     *)
  26         exit 0
  27     ;;
  28 esac
  29
  30 # import CN-functions
  31 . /usr/share/carnet-tools/functions.sh
  32
  33 # check if monitrc is ours
  34 installfile=1
  35 if [ -e /etc/monit/monitrc ]; then
  36     if ! grep -q "CARNet package monit-cn" /etc/monit/monitrc; then
  37         installfile=1
  38         mv -f /etc/monit/monitrc /etc/monit/monitrc.dpkg-old
  39     else
  40         installfile=0
  41     fi
  42 fi
  43 if [ $installfile -eq 1 ]; then
  44     echo "CN: Installing default monitrc in /etc/monit/monitrc"
  45     cp -a /usr/share/monit-cn/monitrc /etc/monit/monitrc
  46     chmod u=rw,go= /etc/monit/monitrc
  47 fi
  48
  49 # sed monitrc with proper hostname
  50 if grep -q '@localhost' /etc/monit/monitrc; then
  51     CARNET_HOSTNAME=`hostname`
  52     CARNET_DOMAINNAME=`hostname --domain`
  53     cp_check_and_sed '@localhost' \
  54         "s/@localhost/@$CARNET_HOSTNAME.$CARNET_DOMAINNAME/g" \
  55         /etc/monit/monitrc || true
  56 fi
  57
  58 # migrate to "but not on { instance }" alerting style
  59 cp_check_and_sed '^set alert [^[:space:]]*@[^[:space:]]* ' \
  60     's/^set alert \([^[:space:]]*@[^[:space:]]*\) .*$/set alert \1 but not on { instance }/g' \
  61     /etc/monit/monitrc || true
  62
  63 # migrate from old hierarchy
  64 if [ -d /etc/monit.d ]; then
  65     find /etc/monit.d -type f -print0 | xargs -0r -I% mv % /etc/monit/conf.d || true
  66     rmdir /etc/monit.d >/dev/null 2>&1 || true
  67 fi
  68
  69 # (re)generate monit.d files
  70 update-monit.d || true
  71
  72 # disable monit startup
  73 cp_check_and_sed '^startup[[:space:]]*=[[:space:]]*0' \
  74     's/^startup[[:space:]]*=.*/startup=1/g' /etc/default/monit || true
  75 cp_check_and_sed '^START[[:space:]]*=[[:space:]]*no' \
  76     's/^START[[:space:]]*=.*/START=yes/g' /etc/default/monit || true
  77
  78 # remove us from systemv monit script
  79 if grep -q 'CARNet package monit-cn' /etc/init.d/monit; then
  80   echo "CN: Removing monit workaround from /etc/init.d/monit -- systemd is in use"
  81   cp-update -r monit-cn /etc/init.d/monit
  82   chmod +x /etc/init.d/monit
  83 fi
  84
  85 service monit restart
  86
  87 #DEBHELPER#
  88
  89 exit 0