How to Install ChangeDetection on Nat VPS

Natvps.id – Change is an application to monitor changes from a website and get notification notifications if any. ChangeDetection can be used to monitor site changes automatically, such as price changes, product stock changes, the latest information checking, and so forth.

This article discusses the steps to install Changedetectio on NAT VPS using a docker, along with the Nginx configuration for Reverse-Proxy. This article uses Ubuntu 22.04 as a reference, but you can use other distributions such as Debian and Centos. Make sure the OS used supports the docker.

Port forwarding configuration

Considering we use grout, we need to add 2 Port Forwarding Configuration on the virtualizor panel (or other VPS panels according to the provider), namely Port Forwarding HTTP and HTTPS For domain compensation.

For example, in this article will use a domain detect.tutorial.mdinata.my.id to access changetection. You are free to change the domain according to your choice. Record this port and domain, because we will use it again in the deploy process.

Don’t forget to add DNS Records to go to your NAT VPS public IP, like this:

Install Docker

We will use a docker and compile a docker for spread Change.

First, install curly Using Orders:

apt update && apt install curl -y

Then, run manuscript Automatic installation from the docker by entering:

curl -fsSL get.docker.com | sh

Wait until the installation process is complete.

Install replacement

ChangeDetection provides a compose docker configuration that is ready to be used in its repositories, so we don’t need to create configuration files docker-compose.yml from the beginning.

First, install GIT and clone Repository change changes.

apt install git -y
git clone --depth 1  changedetection
cd changedetection/

Configuration does not need to be changed, but you are free to change it if necessary.

Run ChangeDetection:

docker compose up -d

Wait until the process spread finished. Deploy can first take a few minutes because it has to download all picture ChangeDetection from the start.

Nginx Configuration (Reverse Proxy)

So that we can access the URL through a domain like detect.tutorial.mdinata.my.idwe can use Reverse Proxy Like Nginx.

First, install Nginx through the command:

# Hapus Apache2 dan pendukungnya (biasanya terpasang secara bawaan di VPS OpenVZ)
apt purge apache2* -y

# Install NGINX
apt install nginx -y

Create a new host configuration specifically for Umami:

nano /etc/nginx/sites-available/changedetection

Then stick the following configuration:

# 
# Reference: 

server {
    listen 80;
    listen [::]:80;
    server_name detect.tutorial.mdinata.my.id;

    location / {
        proxy_pass 
        proxy_set_header Host "localhost";
        proxy_set_header X-Forwarded-Prefix /app;
        proxy_set_header X-Forwarded-Proto $scheme;
    }
}

Adjust detect.tutorial.mdinata.my.id with your domain.

Activate the configuration with:

ln -sf /etc/nginx/sites-available/changedetection /etc/nginx/sites-enabled/changedetection

# Restart NGINX
systemctl restart nginx

Produce SSL certificate (let’s encryption)

So that our domain can be accessed through HTTPS, we need to make a SSL certificate. We can use a free SSL certificate from Let’s Encrypt through Certbot.

Install Certbot and Nginx plugin use the command:

apt install python3-certbot python3-certbot-nginx

So, produce Certificate through Certbot with the command

certbot --nginx -d detect.tutorial.mdinata.my.id

Change detect.tutorial.mdinata.my.id with your domain.

Happy! Your current domain can be accessed via a safe connection https.

Access the ChangeDetection dashboard

ChangeDetection can be accessed through your previous domain. Example: https://detect.tutorial.mdinata.my.id.

Cover

Thus this article is about the steps to install ChangeDetection on NAT VPS. If you are confused or doubtful, don’t hesitate to ask questions in the telegram group @ipv6indonesia. Thank You!