postqueue charts

diff --git a/charts.d/postfix.chart.sh b/charts.d/postfix.chart.sh
new file mode 100755 (executable)
index 0000000..fff7c31
--- /dev/null
+++ b/charts.d/postfix.chart.sh
@@ -0,0 +1,68 @@
+#!/bin/sh
+
+postfix_postqueue=
+
+postfix_check() {
+       # this should return:
+       #  - 0 to enable the chart
+       #  - 1 to disable the chart
+
+       # try to find the postqueue executable
+       if [ -z "$postfix_postqueue" -o ! -x "$postfix_postqueue" ]
+       then
+               postfix_postqueue="`which postqueue 2>/dev/null`"
+               if [ -z "$postfix_postqueue" -o ! -x "$postfix_postqueue" ]
+               then
+                       local d=
+                       for d in /sbin /usr/sbin /usr/local/sbin
+                       do
+                               if [ -x "$d/postqueue" ]
+                               then
+                                       postfix_postqueue="$d/postqueue"
+                                       break
+                               fi
+                       done
+               fi
+       fi
+
+       if [ -z "$postfix_postqueue" -o ! -x  "$postfix_postqueue" ]
+       then
+               echo >&2 "Cannot find postqueue. Please set 'postfix_postqueue=/path/to/postqueue' in $confd/postfix.conf"
+               return 1
+       fi
+
+       return 0
+}
+
+postfix_create() {
+cat <<EOF
+CHART postfix.qemails '' "Postfix Queue Emails" "emails" postfix postfix line 5000 $update_every
+DIMENSION emails '' absolute-no-interpolation 1 1
+CHART postfix.qsize '' "Postfix Queue Emails Size" "emails size in KB" postfix postfix area 5001 $update_every
+DIMENSION size '' absolute 1 1
+EOF
+
+       return 0
+}
+
+postfix_update() {
+       # do all the work to collect / calculate the values
+       # for each dimension
+       # remember: KEEP IT SIMPLE AND SHORT
+
+       eval `$postfix_postqueue -p | grep "^--" | sed -e "s/-- \([0-9]\+\) Kbytes in \([0-9]\+\) Requests.$/local postfix_q_size=\1\nlocal postfix_q_emails=\2/g" | grep "^local postfix_q_"`
+       test -z "$postfix_q_emails" && local postfix_q_emails=0
+       test -z "$postfix_q_size" && local postfix_q_size=0
+
+       # write the result of the work.
+       cat <<VALUESEOF
+BEGIN postfix.qemails $1
+SET emails = $postfix_q_emails
+END
+BEGIN postfix.qsize $1
+SET size = $postfix_q_size
+END
+VALUESEOF
+
+       return 0
+}