Node.js

In this lesson, you will be provided with the basic application image for Node.js.

We'll cover the following

Files
Result

Files#

You can find these files in the code/common-development-profiles/demos/nodejs folder.

A static HTML file to be served:

www/index.htm

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Define and run an HTTP server, a static files server and a REST API:

index.js

const HTTP_PORT = 80;
const cors = require('cors');
const express = require('express');
const path = require('path');
var sourcesDirectory = path.resolve(__dirname, 'www');
var app = express();
app.use(cors());
// API
app.get('/v1/square/:value', function (req, res) {
    const value = req.params.value;
    const square = Math.pow(value, 2);
    res.send({
        value,
        square 
    });
});
// Static files
app.use(express.static(sourcesDirectory, {
    index: 'index.htm',
    extensions: ['htm']
}));
var server = require('http').createServer(app);
server.listen(HTTP_PORT);
console.log(`Listening on http://localhost:${HTTP_PORT}`);

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List dependencies that will need to be restored during the build:

package.json

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Docker image definition:

Dockerfile

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Result#

Run the following program to display the output of the node application using a docker file.

/

Dockerfile

Dockerfile

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Your app can be found at: https://811lgmnxmw1xy.educative.run

The resulting image is published as learnbook/node-server. You can run a local container from it with the following command:

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Then point your browser to http://localhost:8087

Let’s look at another image in the next lesson.

Java

PHP

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Before We Begin

Before Getting Started

Why Docker?

Get Docker up and Running

Basic Concepts

Use Docker Images

Create Docker Images

Publish Docker Images

Forget SDK Installs

Docker with Common Development Profiles

More About Running Containers

Conclusion

Node.js

Files#

Result#

/