Create phpfpm.chart.sh

diff --git a/charts.d/phpfpm.chart.sh b/charts.d/phpfpm.chart.sh
new file mode 100644 (file)
index 0000000..6e67ce5
--- /dev/null
+++ b/charts.d/phpfpm.chart.sh
@@ -0,0 +1,148 @@
+#!/bin/bash
+
+# if this chart is called X.chart.sh, then all functions and global variables
+# must start with X_
+
+# 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/
+
+phpfpm_url="http://nginx.server/php-status"
+
+# _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() {
+       phpfpm_response=($(curl -s "${phpfpm_url}"))
+       [ $? -ne 0 -o "${#phpfpm_response[@]}" -eq 0 ] && return 1
+
+       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" \
+               || "${phpfpm_response[32]}" != "total" \
+               || "${phpfpm_response[43]}" != "slow" \
+       ]]
+               then
+               echo >&2 "phpfpm: 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="${phpfpm_response[42]}"
+       phpfpm_slow_requests="${phpfpm_response[45]}"
+       
+       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}" \
+               || -z "${phpfpm_slow_requests}" \
+       ]]
+               then
+               echo >&2 "phpfpm: 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() {
+       phpfpm_get
+       if [ $? -ne 0 ]; then
+               echo >&2 "phpfpm: cannot find status on URL '${phpfpm_url}'. Please set phpfpm_url='http://nginx.server/php_status' 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() {
+       cat <<EOF
+CHART phpfpm.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.requests '' "PHP-FPM Requests" "requests/s" phpfpm phpfpm.requests line $[phpfpm_priority + 2] $phpfpm_update_every
+DIMENSION requests '' incremental 1 1
+
+CHART phpfpm.performance '' "PHP-FPM Performance" "status" phpfpm phpfpm.performance line $[phpfpm_priority + 3] $phpfpm_update_every
+DIMENSION reached 'max children reached' absolute 1 1
+DIMENSION slow 'slow requests' absolute 1 1
+EOF
+
+       return 0
+}
+
+# _update is called continiously, 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
+
+       phpfpm_get || return 1
+       
+       # write the result of the work.
+       cat <<EOF
+BEGIN phpfpm.connections $1
+SET active = $[phpfpm_active_processes]
+SET maxActive = $[phpfpm_max_active_processes]
+SET idle = $[phpfpm_idle_processes]
+END
+BEGIN phpfpm.requests $1
+SET requests = $[phpfpm_accepted_conn]
+END
+BEGIN phpfpm.performance $1
+SET reached = $[phpfpm_max_children_reached]
+SET slow = $[phpfpm_slow_requests]
+END
+EOF
+       return 0
+}