1 files changed, 169 insertions, 0 deletions
diff --git a/collectors/charts.d.plugin/phpfpm/phpfpm.chart.sh b/collectors/charts.d.plugin/phpfpm/phpfpm.chart.sh
new file mode 100644
index 0000000..b1edb23
--- /dev/null
+++ b/collectors/charts.d.plugin/phpfpm/phpfpm.chart.sh
@@ -0,0 +1,169 @@
+# shellcheck shell=bash
+# 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>
+#
+# Contributed by @safeie with PR #276
+
+# first, you need open php-fpm status in php-fpm.conf
+# second, you need add status location in nginx.conf
+# you can see, https://easyengine.io/tutorials/php/fpm-status-page/
+
+declare -A phpfpm_urls=()
+declare -A phpfpm_curl_opts=()
+
+# _update_every is a special variable - it holds the number of seconds
+# between the calls of the _update() function
+phpfpm_update_every=
+phpfpm_priority=60000
+
+declare -a phpfpm_response=()
+phpfpm_pool=""
+phpfpm_start_time=""
+phpfpm_start_since=0
+phpfpm_accepted_conn=0
+phpfpm_listen_queue=0
+phpfpm_max_listen_queue=0
+phpfpm_listen_queue_len=0
+phpfpm_idle_processes=0
+phpfpm_active_processes=0
+phpfpm_total_processes=0
+phpfpm_max_active_processes=0
+phpfpm_max_children_reached=0
+phpfpm_slow_requests=0
+phpfpm_get() {
+	local opts="${1}" url="${2}"
+
+	# shellcheck disable=SC2207,2086
+	phpfpm_response=($(run curl -Ss ${opts} "${url}"))
+	# shellcheck disable=SC2181
+	if [ $? -ne 0 ] || [ "${#phpfpm_response[@]}" -eq 0 ]; then
+		return 1
+	fi
+
+	if [[ ${phpfpm_response[0]} != "pool:" || ${phpfpm_response[2]} != "process" || ${phpfpm_response[5]} != "start" || ${phpfpm_response[12]} != "accepted" || ${phpfpm_response[15]} != "listen" || ${phpfpm_response[16]} != "queue:" || ${phpfpm_response[26]} != "idle" || ${phpfpm_response[29]} != "active" || ${phpfpm_response[32]} != "total" ]]; then
+		error "invalid response from phpfpm status server: ${phpfpm_response[*]}"
+		return 1
+	fi
+
+	phpfpm_pool="${phpfpm_response[1]}"
+	phpfpm_start_time="${phpfpm_response[7]} ${phpfpm_response[8]}"
+	phpfpm_start_since="${phpfpm_response[11]}"
+	phpfpm_accepted_conn="${phpfpm_response[14]}"
+	phpfpm_listen_queue="${phpfpm_response[17]}"
+	phpfpm_max_listen_queue="${phpfpm_response[21]}"
+	phpfpm_listen_queue_len="${phpfpm_response[25]}"
+	phpfpm_idle_processes="${phpfpm_response[28]}"
+	phpfpm_active_processes="${phpfpm_response[31]}"
+	phpfpm_total_processes="${phpfpm_response[34]}"
+	phpfpm_max_active_processes="${phpfpm_response[38]}"
+	phpfpm_max_children_reached="${phpfpm_response[42]}"
+	if [ "${phpfpm_response[43]}" == "slow" ]; then
+		phpfpm_slow_requests="${phpfpm_response[45]}"
+	else
+		phpfpm_slow_requests="-1"
+	fi
+
+	if [[ -z ${phpfpm_pool} || -z ${phpfpm_start_time} || -z ${phpfpm_start_since} || -z ${phpfpm_accepted_conn} || -z ${phpfpm_listen_queue} || -z ${phpfpm_max_listen_queue} || -z ${phpfpm_listen_queue_len} || -z ${phpfpm_idle_processes} || -z ${phpfpm_active_processes} || -z ${phpfpm_total_processes} || -z ${phpfpm_max_active_processes} || -z ${phpfpm_max_children_reached} ]]; then
+		error "empty values got from phpfpm status server: ${phpfpm_response[*]}"
+		return 1
+	fi
+
+	return 0
+}
+
+# _check is called once, to find out if this chart should be enabled or not
+phpfpm_check() {
+	if [ ${#phpfpm_urls[@]} -eq 0 ]; then
+		phpfpm_urls[local]="http://localhost/status"
+	fi
+
+	local m
+	for m in "${!phpfpm_urls[@]}"; do
+		phpfpm_get "${phpfpm_curl_opts[$m]}" "${phpfpm_urls[$m]}"
+		# shellcheck disable=SC2181
+		if [ $? -ne 0 ]; then
+			# shellcheck disable=SC2154
+			error "cannot find status on URL '${phpfpm_urls[$m]}'. Please set phpfpm_urls[$m]='http://localhost/status' in $confd/phpfpm.conf"
+			unset "phpfpm_urls[$m]"
+			continue
+		fi
+	done
+
+	if [ ${#phpfpm_urls[@]} -eq 0 ]; then
+		error "no phpfpm servers found. Please set phpfpm_urls[name]='url' to whatever needed to get status to the phpfpm server, in $confd/phpfpm.conf"
+		return 1
+	fi
+
+	# this should return:
+	#  - 0 to enable the chart
+	#  - 1 to disable the chart
+
+	return 0
+}
+
+# _create is called once, to create the charts
+phpfpm_create() {
+	local m
+	for m in "${!phpfpm_urls[@]}"; do
+		cat <<EOF
+CHART phpfpm_$m.connections '' "PHP-FPM Active Connections" "connections" phpfpm phpfpm.connections line $((phpfpm_priority + 1)) $phpfpm_update_every
+DIMENSION active '' absolute 1 1
+DIMENSION maxActive 'max active' absolute 1 1
+DIMENSION idle '' absolute 1 1
+
+CHART phpfpm_$m.requests '' "PHP-FPM Requests" "requests/s" phpfpm phpfpm.requests line $((phpfpm_priority + 2)) $phpfpm_update_every
+DIMENSION requests '' incremental 1 1
+
+CHART phpfpm_$m.performance '' "PHP-FPM Performance" "status" phpfpm phpfpm.performance line $((phpfpm_priority + 3)) $phpfpm_update_every
+DIMENSION reached 'max children reached' absolute 1 1
+EOF
+		if [ $((phpfpm_slow_requests)) -ne -1 ]; then
+			echo "DIMENSION slow 'slow requests' absolute 1 1"
+		fi
+	done
+
+	return 0
+}
+
+# _update is called continuously, to collect the values
+phpfpm_update() {
+	# the first argument to this function is the microseconds since last update
+	# pass this parameter to the BEGIN statement (see bellow).
+
+	# do all the work to collect / calculate the values
+	# for each dimension
+	# remember: KEEP IT SIMPLE AND SHORT
+
+	local m
+	for m in "${!phpfpm_urls[@]}"; do
+		phpfpm_get "${phpfpm_curl_opts[$m]}" "${phpfpm_urls[$m]}"
+		# shellcheck disable=SC2181
+		if [ $? -ne 0 ]; then
+			continue
+		fi
+
+		# write the result of the work.
+		cat <<EOF
+BEGIN phpfpm_$m.connections $1
+SET active = $((phpfpm_active_processes))
+SET maxActive = $((phpfpm_max_active_processes))
+SET idle = $((phpfpm_idle_processes))
+END
+BEGIN phpfpm_$m.requests $1
+SET requests = $((phpfpm_accepted_conn))
+END
+BEGIN phpfpm_$m.performance $1
+SET reached = $((phpfpm_max_children_reached))
+EOF
+		if [ $((phpfpm_slow_requests)) -ne -1 ]; then
+			echo "SET slow = $((phpfpm_slow_requests))"
+		fi
+		echo "END"
+	done
+
+	return 0
+}