Make sysinfo based on provider

src/sysinfo/caas.js

@@ -0,0 +1,26 @@
+'use strict';
+
+exports = module.exports = {
+    getIp: getIp
+};
+
+var assert = require('assert'),
+    os = require('os'),
+    SysInfoError = require('../sysinfo.js').SysInfoError;
+
+function getIp(callback) {
+    assert.strictEqual(typeof callback, 'function');
+
+    var ifaces = os.networkInterfaces();
+    for (var dev in ifaces) {
+        if (dev.match(/^(en|eth|wlp).*/) === null) continue;
+
+        for (var i = 0; i < ifaces[dev].length; i++) {
+            if (ifaces[dev][i].family === 'IPv4') {
+                return callback(null, ifaces[dev][i].address);
+            }
+        }
+    }
+
+    callback(new SysInfoError(SysInfoError.INTERNAL_ERROR, 'No IP found'));
+}

src/sysinfo/ec2.js

@@ -0,0 +1,14 @@
+'use strict';
+
+exports = module.exports = {
+    getIp: getIp
+};
+
+var assert = require('assert'),
+    SysInfoError = require('../sysinfo.js').SysInfoError;
+
+function getIp(callback) {
+    assert.strictEqual(typeof callback, 'function');
+
+    callback(new SysInfoError(SysInfoError.INTERNAL_ERROR, 'Not implemented'));
+}