4 files changed, 153 insertions, 0 deletions
diff --git a/collectors/charts.d.plugin/postfix/Makefile.inc b/collectors/charts.d.plugin/postfix/Makefile.inc
new file mode 100644
index 000000000..6e148352d
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+++ b/collectors/charts.d.plugin/postfix/Makefile.inc
@@ -0,0 +1,13 @@
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+# THIS IS NOT A COMPLETE Makefile
+# IT IS INCLUDED BY ITS PARENT'S Makefile.am
+# IT IS REQUIRED TO REFERENCE ALL FILES RELATIVE TO THE PARENT
+
+# install these files
+dist_charts_DATA       += postfix/postfix.chart.sh
+dist_chartsconfig_DATA += postfix/postfix.conf
+
+# do not install these files, but include them in the distribution
+dist_noinst_DATA       += postfix/README.md postfix/Makefile.inc
+
diff --git a/collectors/charts.d.plugin/postfix/README.md b/collectors/charts.d.plugin/postfix/README.md
new file mode 100644
index 000000000..5fc265d56
--- /dev/null
+++ b/collectors/charts.d.plugin/postfix/README.md
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+> THIS MODULE IS OBSOLETE.
+> USE THE PYTHON ONE - IT SUPPORTS MULTIPLE JOBS AND IT IS MORE EFFICIENT
+
+# postfix
+
+The plugin will collect the postfix queue size.
+
+It will create two charts:
+
+1. **queue size in emails**
+2. **queue size in KB**
+
+### configuration
+
+This is the internal default for `/etc/netdata/postfix.conf`
+
+```sh
+# the postqueue command
+# if empty, it will use the one found in the system path
+postfix_postqueue=
+
+# how frequently to collect queue size
+postfix_update_every=15
+```
+
+---
diff --git a/collectors/charts.d.plugin/postfix/postfix.chart.sh b/collectors/charts.d.plugin/postfix/postfix.chart.sh
new file mode 100644
index 000000000..8cb938ce1
--- /dev/null
+++ b/collectors/charts.d.plugin/postfix/postfix.chart.sh
@@ -0,0 +1,89 @@
+# shellcheck shell=bash disable=SC1117
+# no need for shebang - this file is loaded from charts.d.plugin
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+# netdata
+# real-time performance and health monitoring, done right!
+# (C) 2016 Costa Tsaousis <costa@tsaousis.gr>
+#
+
+# the postqueue command
+# if empty, it will use the one found in the system path
+postfix_postqueue=
+
+# how frequently to collect queue size
+postfix_update_every=15
+
+postfix_priority=60000
+
+postfix_check() {
+	# this should return:
+	#  - 0 to enable the chart
+	#  - 1 to disable the chart
+
+	# try to find the postqueue executable
+	if [ -z "$postfix_postqueue" ] || [ ! -x "$postfix_postqueue" ]
+	then
+		# shellcheck disable=SC2230
+		postfix_postqueue="$(which postqueue 2>/dev/null || command -v postqueue 2>/dev/null)"
+	fi
+
+	if [ -z "$postfix_postqueue" ] || [ ! -x  "$postfix_postqueue" ]
+	then
+		# shellcheck disable=SC2154
+		error "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_local.qemails '' "Postfix Queue Emails" "emails" queue postfix.queued.emails line $((postfix_priority + 1)) $postfix_update_every
+DIMENSION emails '' absolute 1 1
+CHART postfix_local.qsize '' "Postfix Queue Emails Size" "emails size in KB" queue postfix.queued.size area $((postfix_priority + 2)) $postfix_update_every
+DIMENSION size '' absolute 1 1
+EOF
+
+	return 0
+}
+
+postfix_update() {
+	# the first argument to this function is the microseconds since last update
+	# pass this parameter to the BEGIN statement (see bellow).
+
+	# do all the work to collect / calculate the values
+	# for each dimension
+	# remember: KEEP IT SIMPLE AND SHORT
+
+	# 1. execute postqueue -p
+	# 2. get the line that begins with --
+	# 3. match the 2 numbers on the line and output 2 lines like these:
+	#    local postfix_q_size=NUMBER
+	#    local postfix_q_emails=NUMBER
+	# 4. then execute this a script with the eval
+	#
+	# be very carefull with eval:
+	# prepare the script and always egrep at the end the lines that are usefull, so that
+	# even if something goes wrong, no other code can be executed
+	postfix_q_emails=0
+	postfix_q_size=0
+
+	eval "$(run "$postfix_postqueue" -p |\
+		grep "^--" |\
+		sed -e "s/-- \([0-9]\+\) Kbytes in \([0-9]\+\) Requests.$/local postfix_q_size=\1\nlocal postfix_q_emails=\2/g" |\
+		grep -E "^local postfix_q_(emails|size)=[0-9]+$")"
+
+	# write the result of the work.
+	cat <<VALUESEOF
+BEGIN postfix_local.qemails $1
+SET emails = $postfix_q_emails
+END
+BEGIN postfix_local.qsize $1
+SET size = $postfix_q_size
+END
+VALUESEOF
+
+	return 0
+}
diff --git a/collectors/charts.d.plugin/postfix/postfix.conf b/collectors/charts.d.plugin/postfix/postfix.conf
new file mode 100644
index 000000000..b77817bd6
--- /dev/null
+++ b/collectors/charts.d.plugin/postfix/postfix.conf
@@ -0,0 +1,25 @@
+# no need for shebang - this file is loaded from charts.d.plugin
+
+# netdata
+# real-time performance and health monitoring, done right!
+# (C) 2018 Costa Tsaousis <costa@tsaousis.gr>
+# GPL v3+
+
+# THIS PLUGIN IS DEPRECATED
+# USE THE PYTHON.D ONE
+
+# the postqueue command
+# if empty, it will use the one found in the system path
+#postfix_postqueue=
+
+# the data collection frequency
+# if unset, will inherit the netdata update frequency
+#postfix_update_every=15
+
+# the charts priority on the dashboard
+#postfix_priority=60000
+
+# the number of retries to do in case of failure
+# before disabling the module
+#postfix_retries=10
+