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authorDaniel Baumann <daniel.baumann@progress-linux.org>2018-11-07 12:22:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2018-11-07 12:22:44 +0000
commit1e6c93250172946eeb38e94a92a1fd12c9d3011e (patch)
tree8ca5e16dfc7ad6b3bf2738ca0a48408a950f8f7e /charts.d/example.chart.sh
parentUpdate watch file (diff)
downloadnetdata-1e6c93250172946eeb38e94a92a1fd12c9d3011e.tar.xz
netdata-1e6c93250172946eeb38e94a92a1fd12c9d3011e.zip
Merging upstream version 1.11.0+dfsg.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'charts.d/example.chart.sh')
-rw-r--r--charts.d/example.chart.sh119
1 files changed, 0 insertions, 119 deletions
diff --git a/charts.d/example.chart.sh b/charts.d/example.chart.sh
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-# no need for shebang - this file is loaded from charts.d.plugin
-
-# netdata
-# real-time performance and health monitoring, done right!
-# (C) 2016 Costa Tsaousis <costa@tsaousis.gr>
-# GPL v3+
-#
-
-# if this chart is called X.chart.sh, then all functions and global variables
-# must start with X_
-
-# _update_every is a special variable - it holds the number of seconds
-# between the calls of the _update() function
-example_update_every=
-
-# the priority is used to sort the charts on the dashboard
-# 1 = the first chart
-example_priority=150000
-
-# to enable this chart, you have to set this to 12345
-# (just a demonstration for something that needs to be checked)
-example_magic_number=
-
-# global variables to store our collected data
-# remember: they need to start with the module name example_
-example_value1=
-example_value2=
-example_value3=
-example_value4=
-example_last=0
-example_count=0
-
-example_get() {
- # do all the work to collect / calculate the values
- # for each dimension
- #
- # Remember:
- # 1. KEEP IT SIMPLE AND SHORT
- # 2. AVOID FORKS (avoid piping commands)
- # 3. AVOID CALLING TOO MANY EXTERNAL PROGRAMS
- # 4. USE LOCAL VARIABLES (global variables may overlap with other modules)
-
- example_value1=$RANDOM
- example_value2=$RANDOM
- example_value3=$RANDOM
- example_value4=$((8192 + (RANDOM * 16383 / 32767) ))
-
- if [ $example_count -gt 0 ]
- then
- example_count=$((example_count - 1))
-
- [ $example_last -gt 16383 ] && example_value4=$((example_last + (RANDOM * ( (32767 - example_last) / 2) / 32767)))
- [ $example_last -le 16383 ] && example_value4=$((example_last - (RANDOM * (example_last / 2) / 32767)))
- else
- example_count=$((1 + (RANDOM * 5 / 32767) ))
-
- [ $example_last -gt 16383 -a $example_value4 -gt 16383 ] && example_value4=$((example_value4 - 16383))
- [ $example_last -le 16383 -a $example_value4 -lt 16383 ] && example_value4=$((example_value4 + 16383))
- fi
- example_last=$example_value4
-
- # this should return:
- # - 0 to send the data to netdata
- # - 1 to report a failure to collect the data
-
- return 0
-}
-
-# _check is called once, to find out if this chart should be enabled or not
-example_check() {
- # this should return:
- # - 0 to enable the chart
- # - 1 to disable the chart
-
- # check something
- [ "${example_magic_number}" != "12345" ] && error "manual configuration required: you have to set example_magic_number=$example_magic_number in example.conf to start example chart." && return 1
-
- # check that we can collect data
- example_get || return 1
-
- return 0
-}
-
-# _create is called once, to create the charts
-example_create() {
- # create the chart with 3 dimensions
- cat <<EOF
-CHART example.random '' "Random Numbers Stacked Chart" "% of random numbers" random random stacked $((example_priority)) $example_update_every
-DIMENSION random1 '' percentage-of-absolute-row 1 1
-DIMENSION random2 '' percentage-of-absolute-row 1 1
-DIMENSION random3 '' percentage-of-absolute-row 1 1
-CHART example.random2 '' "A random number" "random number" random random area $((example_priority + 1)) $example_update_every
-DIMENSION random '' absolute 1 1
-EOF
-
- return 0
-}
-
-# _update is called continuously, to collect the values
-example_update() {
- # the first argument to this function is the microseconds since last update
- # pass this parameter to the BEGIN statement (see bellow).
-
- example_get || return 1
-
- # write the result of the work.
- cat <<VALUESEOF
-BEGIN example.random $1
-SET random1 = $example_value1
-SET random2 = $example_value2
-SET random3 = $example_value3
-END
-BEGIN example.random2 $1
-SET random = $example_value4
-END
-VALUESEOF
-
- return 0
-}