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#!/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/
declare -A phpfpm_urls=()
# _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() {
url=$1
phpfpm_response=($(curl -Ss "${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() {
if [ ${#phpfpm_urls[@]} -eq 0 ]; then
phpfpm_urls[local]="http://localhost/status"
fi
local m
for m in "${!phpfpm_urls[@]}"
do
phpfpm_get "${phpfpm_urls[$m]}"
if [ $? -ne 0 ]; then
echo >&2 "phpfpm: cannot find status on URL '${phpfpm_url[$m]}'. Please set phpfpm_urls[$m]='http://localhost/status' in $confd/phpfpm.conf"
unset phpfpm_urls[$m]
continue
fi
done
if [ ${#phpfpm_urls[@]} -eq 0 ]; then
echo >&2 "phpfpm: 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)) $phpfpm_update_every
DIMENSION reached 'max children reached' absolute 1 1
DIMENSION slow 'slow requests' absolute 1 1
EOF
done
return 0
}
# _update is called continiously, to collect the values
phpfpm_update() {
# the first argument to this function is the microseconds since last update
# pass this parameter to the BEGIN statement (see bellow).
# do all the work to collect / calculate the values
# for each dimension
# remember: KEEP IT SIMPLE AND SHORT
local m
for m in "${!phpfpm_urls[@]}"
do
phpfpm_get "${phpfpm_urls[$m]}"
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))
SET slow = $((phpfpm_slow_requests))
END
EOF
done
return 0
}
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