Enable routing to Alexa functions

Add first Alexa-compatible function HostnameIntent

sample-functions/HostnameIntent/Dockerfile

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+FROM alpine:latest
+RUN apk --update add nodejs
+COPY ./fwatchdog /usr/bin/
+
+COPY package.json   .
+COPY handler.js     .
+COPY sample.json    .
+
+RUN npm i
+ENV fprocess="node handler.js"
+CMD ["fwatchdog"]

sample-functions/HostnameIntent/handler.js

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+"use strict"
+let fs = require('fs');
+let sample = require("./sample.json");
+
+var content = '';
+process.stdin.resume();
+process.stdin.on('data', function(buf) { content += buf.toString(); });
+process.stdin.on('end', function() {
+    fs.readFile("/etc/hostname", "utf8", (err, data) => {
+      if(err) {
+        return console.log(err);
+      }
+//      console.log(content);
+
+      sample.response.outputSpeech.text = "Your hostname is: " + data;
+      sample.response.card.content = "Your hostname is: "+ data
+      sample.response.card.title = "Your hostname";
+      console.log(JSON.stringify(sample));
+      process.exit(0);
+   });
+});
+

sample-functions/HostnameIntent/package.json

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+{
+  "name": "HostnameIntent",
+  "version": "1.0.0",
+  "description": "",
+  "main": "handler.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC"
+}

sample-functions/HostnameIntent/sample.json

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+{
+  "version": "1.0",
+  "response": {
+    "outputSpeech": {
+      "type": "PlainText",
+      "text": "There's currently 6 people in space"
+    },
+    "card": {
+      "content": "There's currently 6 people in space",
+      "title": "People in space",
+      "type": "Simple"
+    },
+    "shouldEndSession": true
+  },
+  "sessionAttributes": {}
+}