USSD Server Stats Daemon (USSD)

This project implements a proof of concept USSD application that allows System Administrators to check/monitor basic stats of their servers via their mobile phone.

Background

At NNDI we like to play around with different technologies to see how far we can stretch them for innovative applications. USSD is an old-but-great protocol that's popular and serves a lot of applications in Africa including Mobile Money and Banking.

We decided to try using USSD for something atypical - a kind of IOT application; perhaps you can call this a USSD of Things project. ;)

Usage

This project is intended to be used with USSD APIs provided by AfricasTalking - so you will need to get access to their services to run it behind an actual USSD Shortcode. However, you can run it locally and test it with dialoguss

Run it with the following command

$ go get -u "github.com/nndi-oss/ussd"

$ cd $GOPATH/bin

$ ./ussd -h "my.server.com" -bind "localhost:8000"

Dummy Server

The dummy server provides hard-coded results for all calls and doesn't actually read stats from the host machine. You can use this to test the server

$ go run main.go -h "my.server.com" -bind "localhost:8000" -dummy

Basic USSD interaction Concept

1. Dial Short code (e.g. *384*8327#)

USSD Server Stats Daemon

Host: my.server.com
IP: 192.168.1.1

1. Disk space
2. Memory
3. Network 
4. Processes
#  Quit

Input: 1

Disk Space on my.server.com

/dev/sda4  
  5GB/50GB (90%)
/dev/sda4
  25GB/50GB (25%)

Input: 2

Memory
mem
  Total: 6GB
  Used: 4.3GB
  Rsrv: 1.7GB
swap
  Total: 4GB
  Used: 0GB
  Rsrv: 0GB

Input: 3

Network

epn03
  up:  yes
  in:  30GB
  out: 60GB
eth0
  up:  yes
  in:  30GB
  out: 60GB

Input: 4

Processes

top:
1. java (0.2 cpu, 2GB mem)
2. systemd (0.1 cpu, 500MB mem)
3. http (0.1 cpu, 50MB mem)

NOTE: It's still a work in progress and not (yet) an offical NNDI product

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Copyright (c) 2018 - 2019, NNDI