Build a safe and reliable container service: Use Nginx Proxy Manager to achieve traffic isolation

Build a safe and reliable container service: Use Nginx Proxy Manager to achieve traffic isolation

With the continuous development of cloud computing and containerization technology, more and more enterprises and developers are starting to use containers to host and manage their applications. In order to ensure the safety and reliability of container services, traffic isolation is an indispensable link. This article will introduce how to use Nginx Proxy Manager (hereinafter referred to as NPM) to build a safe and reliable container service, and provide specific code examples.

1. NPM Introduction
   NPM is a proxy management tool based on Nginx. It provides a user-friendly interface that can quickly configure and manage reverse proxy, load balancing, SSL certificate and other functions. Through NPM, we can achieve traffic isolation for container services and improve security and reliability.
2. Installing and Configuring NPM
   First, we need to install NPM on the server. Please make sure your server has Nginx installed and Docker enabled.

Next, use the following command to install NPM:

docker run --restart always -d -p 81:81 -p 443:443 -v npmdata:/data -v /var/run/docker.sock:/var/run/docker.sock jlesage/nginx-proxy-manager

This command will start an NPM container on the server and map ports 81 and 443 to the corresponding ports on the host.

After the startup is completed, use a browser to access the server IP address, add the port number 81 (for example: http://server_ip:81), and enter the NPM management interface.

3. Configuring container services

In the NPM management interface, we can easily configure and manage container services. Here is a simple example:

First, in the left navigation bar of the NPM interface, click "Proxy Hosts", and then click the "Add Proxy Host" button.

In the pop-up window, fill in the following information:

• Domain Names: Enter your domain name to access the container service.
• Scheme: Select the protocol type, generally select "http" or "https".
• Forward Hostname/IP: Enter the IP address or host name of the container service.
• Forward Port: Enter the port number of the container service.

Click "Save" to save the configuration.

4. SSL certificate configuration

In order to ensure the security of data transmission, we can also configure an SSL certificate. In the NPM management interface, click "SSL Certificates" and then click the "Add Certificate" button.

In the pop-up window, fill in the following information:

• Domain: Enter your domain name.
• E-Mail: Enter your email address for certificate related notifications.

Click "Save" to save the configuration.

5. Sample code implementation

The following is a sample code for a Node.js application based on Docker, demonstrating how to use NPM to achieve traffic isolation in a container environment:

const express = require('express');
const app = express();
const port = 3000;

app.get('/', (req, res) => {
  res.send('Hello World!');
});

app.listen(port, () => {
  console.log(`Example app listening at http://localhost:${port}`);
});

With the above code, we created a simple Express application that listens on port 3000 and returns "Hello World!".

Package the application into a Docker image and configure the corresponding proxy settings in NPM to achieve NPM-based traffic isolation.

6. Summary

By using Nginx Proxy Manager, we can build a safe and reliable container service and achieve traffic isolation for container services. NPM provides a user-friendly interface that makes configuring and managing container services simple and easy to use. At the same time, through the configuration of SSL certificate, we can ensure the security of data transmission.

The above is an introduction and code example on how to use Nginx Proxy Manager to achieve traffic isolation. I hope this article can help you build a safe and reliable container service.

The above is the detailed content of Build a safe and reliable container service: Use Nginx Proxy Manager to achieve traffic isolation. For more information, please follow other related articles on the PHP Chinese website!