summaryrefslogtreecommitdiffstats
path: root/collectors/charts.d.plugin/nginx/nginx.chart.sh
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:22:31 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:22:31 +0000
commit8d4f58e49b9dc7d3545651023a36729de773ad86 (patch)
tree7bc7be4a8e9e298daa1349348400aa2a653866f2 /collectors/charts.d.plugin/nginx/nginx.chart.sh
parentInitial commit. (diff)
downloadnetdata-8d4f58e49b9dc7d3545651023a36729de773ad86.tar.xz
netdata-8d4f58e49b9dc7d3545651023a36729de773ad86.zip
Adding upstream version 1.12.0.upstream/1.12.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'collectors/charts.d.plugin/nginx/nginx.chart.sh')
-rw-r--r--collectors/charts.d.plugin/nginx/nginx.chart.sh141
1 files changed, 141 insertions, 0 deletions
diff --git a/collectors/charts.d.plugin/nginx/nginx.chart.sh b/collectors/charts.d.plugin/nginx/nginx.chart.sh
new file mode 100644
index 0000000..812de2c
--- /dev/null
+++ b/collectors/charts.d.plugin/nginx/nginx.chart.sh
@@ -0,0 +1,141 @@
+# 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>
+#
+
+# if this chart is called X.chart.sh, then all functions and global variables
+# must start with X_
+
+nginx_url="http://127.0.0.1:80/stub_status"
+nginx_curl_opts=""
+
+# _update_every is a special variable - it holds the number of seconds
+# between the calls of the _update() function
+nginx_update_every=
+nginx_priority=60000
+
+declare -a nginx_response=()
+nginx_active_connections=0
+nginx_accepts=0
+nginx_handled=0
+nginx_requests=0
+nginx_reading=0
+nginx_writing=0
+nginx_waiting=0
+nginx_get() {
+ # shellcheck disable=SC2207
+ nginx_response=($(run curl -Ss ${nginx_curl_opts} "${nginx_url}"))
+ # shellcheck disable=SC2181
+ if [ $? -ne 0 ] || [ "${#nginx_response[@]}" -eq 0 ]; then return 1; fi
+
+ if [ "${nginx_response[0]}" != "Active" ] ||
+ [ "${nginx_response[1]}" != "connections:" ] ||
+ [ "${nginx_response[3]}" != "server" ] ||
+ [ "${nginx_response[4]}" != "accepts" ] ||
+ [ "${nginx_response[5]}" != "handled" ] ||
+ [ "${nginx_response[6]}" != "requests" ] ||
+ [ "${nginx_response[10]}" != "Reading:" ] ||
+ [ "${nginx_response[12]}" != "Writing:" ] ||
+ [ "${nginx_response[14]}" != "Waiting:" ]; then
+ error "Invalid response from nginx server: ${nginx_response[*]}"
+ return 1
+ fi
+
+ nginx_active_connections="${nginx_response[2]}"
+ nginx_accepts="${nginx_response[7]}"
+ nginx_handled="${nginx_response[8]}"
+ nginx_requests="${nginx_response[9]}"
+ nginx_reading="${nginx_response[11]}"
+ nginx_writing="${nginx_response[13]}"
+ nginx_waiting="${nginx_response[15]}"
+
+ if [ -z "${nginx_active_connections}" ] ||
+ [ -z "${nginx_accepts}" ] ||
+ [ -z "${nginx_handled}" ] ||
+ [ -z "${nginx_requests}" ] ||
+ [ -z "${nginx_reading}" ] ||
+ [ -z "${nginx_writing}" ] ||
+ [ -z "${nginx_waiting}" ]; then
+ error "empty values got from nginx server: ${nginx_response[*]}"
+ return 1
+ fi
+
+ return 0
+}
+
+# _check is called once, to find out if this chart should be enabled or not
+nginx_check() {
+
+ nginx_get
+ # shellcheck disable=2181
+ if [ $? -ne 0 ]; then
+ # shellcheck disable=SC2154
+ error "cannot find stub_status on URL '${nginx_url}'. Please set nginx_url='http://nginx.server/stub_status' in $confd/nginx.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
+nginx_create() {
+ cat <<EOF
+CHART nginx_local.connections '' "nginx Active Connections" "connections" nginx nginx.connections line $((nginx_priority + 1)) $nginx_update_every
+DIMENSION active '' absolute 1 1
+
+CHART nginx_local.requests '' "nginx Requests" "requests/s" nginx nginx.requests line $((nginx_priority + 2)) $nginx_update_every
+DIMENSION requests '' incremental 1 1
+
+CHART nginx_local.connections_status '' "nginx Active Connections by Status" "connections" nginx nginx.connections.status line $((nginx_priority + 3)) $nginx_update_every
+DIMENSION reading '' absolute 1 1
+DIMENSION writing '' absolute 1 1
+DIMENSION waiting idle absolute 1 1
+
+CHART nginx_local.connect_rate '' "nginx Connections Rate" "connections/s" nginx nginx.connections.rate line $((nginx_priority + 4)) $nginx_update_every
+DIMENSION accepts accepted incremental 1 1
+DIMENSION handled '' incremental 1 1
+EOF
+
+ return 0
+}
+
+# _update is called continuously, to collect the values
+nginx_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
+
+ nginx_get || return 1
+
+ # write the result of the work.
+ cat <<VALUESEOF
+BEGIN nginx_local.connections $1
+SET active = $((nginx_active_connections))
+END
+BEGIN nginx_local.requests $1
+SET requests = $((nginx_requests))
+END
+BEGIN nginx_local.connections_status $1
+SET reading = $((nginx_reading))
+SET writing = $((nginx_writing))
+SET waiting = $((nginx_waiting))
+END
+BEGIN nginx_local.connect_rate $1
+SET accepts = $((nginx_accepts))
+SET handled = $((nginx_handled))
+END
+VALUESEOF
+
+ return 0
+}