feat: Add utils for testing communication between pods

assets/docker/Dockerfile.node.tmpl

@@ -15,4 +15,5 @@ FROM gcr.io/distroless/nodejs20-debian11
 COPY --from=build-env /app /app
 WORKDIR /app
 USER nonroot
+
 CMD ["index.js"]

example/index.js

@@ -1 +1,49 @@
-console.log("KKA-CLI from NearForm")
+const express = require('express');
+const bodyParser = require('body-parser');
+const axios = require('axios');
+
+const app = express();
+
+app.use(bodyParser.json());
+
+app.get('/', (req, res) => {
+    res.status(200).send({"message": "Welcome to Initium CLI"});
+});
+
+app.post('/', async(req, res) => {
+    const { mode, to_host, number } = req.body;
+
+    console.log('mode: %s - to_host: %s - number: %s', mode, to_host, number);
+
+    if (mode === 'sender') {
+        const generatedNumber = Math.floor(Math.random() * 1000);
+        console.log('Generated number is %s', generatedNumber);
+
+        try {
+            const resp = await axios.post(to_host, {
+                "mode": 'receiver',
+                "to_host": req.headers.host,
+                "number": generatedNumber
+            });
+
+            res.send(resp.data);
+        } catch (error) {
+            console.log(error)
+            res.status(500).send({error: 'Failed to send data'});
+        }
+    } else if (mode === 'receiver') {
+        const generatedNumber = Math.floor(Math.random() * 1000);
+        console.log('Generated number is %s', generatedNumber);
+
+        const sum = generatedNumber + number;
+
+        res.send({"sum": sum})
+    } else {
+        res.status(200).send({"message": "Welcome to Initium"});
+    }
+})
+
+const PORT=8080;
+app.listen(PORT, () => {
+	console.log(`Server is running on ${PORT}`);
+});