charts.d/postfix.chart.sh

   1 #!/bin/sh
   2
   3 postfix_postqueue=
   4
   5 postfix_check() {
   6         # this should return:
   7         #  - 0 to enable the chart
   8         #  - 1 to disable the chart
   9
  10         # try to find the postqueue executable
  11         if [ -z "$postfix_postqueue" -o ! -x "$postfix_postqueue" ]
  12         then
  13                 postfix_postqueue="`which postqueue 2>/dev/null`"
  14                 if [ -z "$postfix_postqueue" -o ! -x "$postfix_postqueue" ]
  15                 then
  16                         local d=
  17                         for d in /sbin /usr/sbin /usr/local/sbin
  18                         do
  19                                 if [ -x "$d/postqueue" ]
  20                                 then
  21                                         postfix_postqueue="$d/postqueue"
  22                                         break
  23                                 fi
  24                         done
  25                 fi
  26         fi
  27
  28         if [ -z "$postfix_postqueue" -o ! -x  "$postfix_postqueue" ]
  29         then
  30                 echo >&2 "Cannot find postqueue. Please set 'postfix_postqueue=/path/to/postqueue' in $confd/postfix.conf"
  31                 return 1
  32         fi
  33
  34         return 0
  35 }
  36
  37 postfix_create() {
  38 cat <<EOF
  39 CHART postfix.qemails '' "Postfix Queue Emails" "emails" postfix postfix line 5000 $update_every
  40 DIMENSION emails '' absolute-no-interpolation 1 1
  41 CHART postfix.qsize '' "Postfix Queue Emails Size" "emails size in KB" postfix postfix area 5001 $update_every
  42 DIMENSION size '' absolute 1 1
  43 EOF
  44
  45         return 0
  46 }
  47
  48 postfix_update() {
  49         # do all the work to collect / calculate the values
  50         # for each dimension
  51         # remember: KEEP IT SIMPLE AND SHORT
  52
  53         eval `$postfix_postqueue -p | grep "^--" | sed -e "s/-- \([0-9]\+\) Kbytes in \([0-9]\+\) Requests.$/local postfix_q_size=\1\nlocal postfix_q_emails=\2/g" | grep "^local postfix_q_"`
  54         test -z "$postfix_q_emails" && local postfix_q_emails=0
  55         test -z "$postfix_q_size" && local postfix_q_size=0
  56
  57         # write the result of the work.
  58         cat <<VALUESEOF
  59 BEGIN postfix.qemails $1
  60 SET emails = $postfix_q_emails
  61 END
  62 BEGIN postfix.qsize $1
  63 SET size = $postfix_q_size
  64 END
  65 VALUESEOF
  66
  67         return 0
  68 }