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Diffstat (limited to 'charts.d/example.chart.sh')
-rw-r--r-- | charts.d/example.chart.sh | 119 |
1 files changed, 0 insertions, 119 deletions
diff --git a/charts.d/example.chart.sh b/charts.d/example.chart.sh deleted file mode 100644 index ffc98712f..000000000 --- a/charts.d/example.chart.sh +++ /dev/null @@ -1,119 +0,0 @@ -# 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 -} |