Smokeping::probes::speedtest

Integrates speedtest-cli (https://github.com/sivel/speedtest-cli) as a probe into smokeping. The variable "binary" must point to your copy of the speedtest-cli program. If it is not installed on your system yet, you should install the latest version from https://github.com/sivel/speedtest-cli. Note that you need at least version >=2.0.2 for speedtest-cli.

The Probe asks for the given resource one time, ignoring the pings config variable (because pings can't be lower than 3).

You can ask for a specific server (via the server parameter) and record a specific output (via the measurement parameter).

Note that you may want to change speedtest's forks parameter because basically: by default smokeping runs up to 5 speedtest probes at once, skewing overall results and possibly running into resource trouble on low spec devices. Setting forks = 1 will alleviate these issues.

Parameters:

• binary => The location of your speedtest-cli binary.
• server => The server id you want to test against (optional). If unspecified, speedtest.net will select the closest server to you. The value has to be an id reported by the command speedtest-cli --list
• measurement => What output do you want graphed? Supported values are: ping, download, upload
• extraargs => Extra arguments to send to speedtest-cli

You can use extraargs with --no-download or --no-upload if you want to skip some test direction (https://github.com/sivel/speedtest-cli/commit/3feb38d9d47d41e6b0679e3722dedb4511c437f6).

Installation:

Copy The speedtest.pm should be copied into your smokeping installation directory - for instance here: /opt/smokeping/lib/Smokeping/probes/

Logging: You can get logs of what goes on inside the plugin either by running smokeping with --debug, or by changing this line:

  #set to LOG_ERR to disable debugging, LOG_DEBUG to enable it
  setlogmask(LOG_MASK(LOG_ERR));

to

  #set to LOG_ERR to disable debugging, LOG_DEBUG to enable it
  setlogmask(LOG_MASK(LOG_DEBUG));

After doing this (and restarting smokeping), the plugin's logs will go to syslog, local0.debug. You will need something like

  local0.*     /var/log/local.log

in your syslog configuration.

Example probe configuration (poll every hour):

### Add this to your Probes file in conf.d folder

+ speedtest
binary = /usr/local/bin/speedtest-cli
timeout = 300
step = 3600
offset = random
pings = 3

++ speedtest-download
measurement = download

++ speedtest-upload
measurement = upload

### Add these to your Targets file.

++++ download_from_NextGen_Communications
menu = download_from_NextGen_Communications
title = download_from_NextGen_Communications
probe = speedtest-download
server = 1737
measurement = download
host = dummy.com

++++ upload_to_NextGen_Communications
menu = upload_to_NextGen_Communications
title = upload_to_NextGen_Communications
probe = speedtest-upload
server = 1737
measurement = upload
host = dummy.com

Bugs:

• Currently the probe's unit of measurement is hardcoded to "bps". This will be a problem if you want to measure "ping", which is reported in seconds.
• For large values the overview graphs will have wrong data. You need to add something like this to your overview section:

+overview
max_rtt = 1000000000

• In order for the RRD to actually store data larger than 180, you also need to apply this patch (or to use the most recent version of smokeping): https://github.com/oetiker/SmokePing/commit/60419834f224a0735094fd4ad0aac8eac3b15289