Use Nginx Proxy Manager to implement grayscale publishing of HTTP requests

Use Nginx Proxy Manager to implement grayscale release of HTTP requests

Grayscale release is a common software release strategy. By gradually integrating the functions of the new version into one Testing is conducted among a small group of users to verify the stability and reliability of the new version in a production environment. Implementing grayscale publishing in HTTP requests mainly involves the routing and distribution of requests. We can use Nginx Proxy Manager to achieve this function.

Nginx Proxy Manager is an Nginx-based management interface that simplifies the Nginx configuration and management process and provides some advanced functions, such as load balancing, reverse proxy, etc. The following will introduce how to use Nginx Proxy Manager to implement grayscale publishing of HTTP requests, and provide some specific code examples.

1. Install and configure Nginx Proxy Manager

First, we need to install Nginx Proxy Manager. It can be installed through the official website or using a package management tool. After the installation is complete, we need to configure the basic settings of Nginx Proxy Manager, such as listening port, SSL certificate, etc.

2. Set the routing rules for grayscale publishing

To set the routing rules for grayscale publishing in Nginx Proxy Manager, you can follow the following steps:

• Log in to the management interface of Nginx Proxy Manager.
• Select the "Proxy Hosts" option in the left menu.
• Click the "Add Proxy Host" button to add a new proxy host.
• Enter the domain name to be published in grayscale in the "Hostnames" field.
• Enter the backend server address that actually handles the request in the "Upstream Servers" field.
• Set routing rules in the "Access Rules" field, such as forwarding requests to the backend server in a certain proportion.
• Click the "Save" button to save the configuration.

3. Configure the load balancing policy of Nginx Proxy Manager

In order to achieve load balancing of requests, you need to configure the load balancing policy of Nginx Proxy Manager. This can be accomplished through the following steps:

• Select the "Proxy Hosts" option in the management interface of Nginx Proxy Manager.
• Find the previously set grayscale publishing proxy host.
• Click the "Manage Rules & Upstream Servers" button.
• In the "Upstream Servers" column, select the "Add Upstream Server" button to add the address and weight of the backend server.
• Set appropriate weights so that requests are forwarded to the backend server proportionally.
• Click the "Save" button to save the configuration.

4. Verify the effect of grayscale publishing

After the above configuration, grayscale publishing has been completed. We can verify the effect of grayscale publishing through the following steps:

• Use a browser to access the set domain name.
• Check whether the response results of the request are forwarded to different backend servers according to the set ratio.

Through the above steps, we have successfully used Nginx Proxy Manager to implement grayscale publishing of HTTP requests.

The following are some specific code examples for reference:

Nginx Proxy Manager installation command (taking Ubuntu as an example):

sudo apt-get install nginx-proxy-manager

Nginx Proxy Manager’s basic configuration file (Usually located in /etc/nginx-proxy-manager/config.json):

{
  "server": {
    "listen": "80",
    "secure": "true",
    "ssl": {
      "enabled": true,
      "certPath": "/path/to/certificate.crt",
      "keyPath": "/path/to/private.key"
    }
  }
}

Grayscale published routing rule configuration example:

Hostnames: example.com
Upstream Servers: http://server1:80, http://server2:80
Access Rules: 50% to server1, 50% to server2

Load balancing policy configuration Example:

Upstream Servers:
- Address: http://server1:80
  Weight: 1
- Address: http://server2:80
  Weight: 1

Through the above steps and code examples, we can use Nginx Proxy Manager to successfully implement grayscale release of HTTP requests, thereby ensuring that the new version of the function can run normally in the production environment.

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