router-netsender: report router ping to cloud

[Trek Hopton]

We want to collect and be able to graph the router’s ping over time using our vidgrind graphing tool.

The ping value can be obtained by router-netsender using the existing SSH code to execute a ping command on the router.

The resulting text output can then be uploaded to the cloud as a T pin.

I propose we store the text output in the cloud but also parse the text so that the ping value can be stored as a number/scalar and viewed as a graph from Vidgrind’s search page.

[Trek Hopton]

See issue #48 for related issue. Router stats are uploaded as JSON containing shell command output to be later parsed and analysed in the cloud.

This issue can stay unresolved until the ping is stored as a scalar, ie. it is searchable using an X pin and graph-able using vidgrinds graphing tool on the search page.

[Trek Hopton]

Closing issue due to requirements changing.

Currently ping is sent to the cloud as JSON text containing the output of the ping shell command. The next step is to write vidgrind software that handles that text and performs parsing, extracting the value and storing as a searchable data point.

Another issue should be written on the VidGrind repository concerning this.