add local server and reboot functionality

bin/ssu

@@ -0,0 +1,83 @@
+#!/usr/bin/env node
+
+'use strict'
+
+var wreck = require('wreck')
+var argv = process.argv.slice(2)
+
+var cmd = argv[0]
+var fingerprint = argv[1]
+
+if (!cmd || !fingerprint) {
+  console.log('Command line utility for lamassu-server')
+  console.log('\nUsage: ssu reboot <machine-fingerprint>')
+  console.log('This will remotely reboot your lamassu-machine.')
+  process.exit(1)
+}
+
+var opts = {json: true}
+wreck.get('http://localhost:7070/pid?fingerprint=' + fingerprint, opts, function (err, res, payload) {
+  if (err) {
+    console.log('Please make sure that lamassu-server is running on this box.')
+    process.exit(2)
+  }
+
+  if (!payload.pid) {
+    console.log('The requested lamassu-machine is not connected.')
+    process.exit(3)
+  }
+
+  var pid = payload.pid
+
+  if (Date.now() - payload.ts > 10000) {
+    console.log('lamassu-machine is not connected to server.')
+    process.exit(6)
+  }
+
+  var opts2 = {
+    headers: {'Content-Type': 'application/json'},
+    payload: JSON.stringify({pid: pid, fingerprint: fingerprint})
+  }
+
+  wreck.post('http://localhost:7070/reboot', opts2, function (err2, res) {
+    if (err2) {
+      console.log('Please make sure that lamassu-server is running on this box.')
+      process.exit(2)
+    }
+
+    if (res.statusCode !== 200) {
+      console.log('Communication error')
+      return
+    }
+
+    console.log('Rebooting...')
+
+    var ts = null
+
+    setTimeout(function () {
+      if (Date.now() - ts < 10000) {
+        console.log('lamassu-machine did not reboot but is still contacting server.')
+        process.exit(4)
+      }
+
+      console.log('lamassu-machine rebooted but is not coming back up.')
+      process.exit(5)
+    }, 30000)
+
+    setInterval(function () {
+      wreck.get('http://localhost:7070/pid?fingerprint=' + fingerprint, opts, function (err3, res, payload) {
+        if (err3) {
+          console.log('lamassu-server appears to be down.')
+          process.exit(2)
+        }
+
+        ts = payload.ts
+
+        if (payload.pid !== pid) {
+          console.log('lamassu-machine is back up!')
+          process.exit(0)
+        }
+      })
+    }, 5000)
+  })
+})