My previous guide for Changedetection involved the use of Task Scheduler. Today I’m offering a recommended and excellent alternative for installing the latest Changedetection version via Portainer. Changedetection is a self-hosted change monitoring of web pages. Know when web pages change! Stay on top of new information! Live your data-life pro-actively instead of re-actively, do not rely on manipulative social media for consuming important information. Know when Government departments update (changes are often only on their websites) – Local government news (changes are often only on their websites) – New software releases, security advisories when you’re not on their mailing list – Festivals with changes – Real-estate listing changes. In this step by step guide I will show you how to install Changedetection on your Synology NAS using Docker & Portainer.

💡Note: This guide works perfectly with the latest Changedetection 0.45.20 release.

• STEP 1

Please Support My work by Making a Donation.

• STEP 2

Install Portainer using my step by step guide. If you already have Portainer installed on your Synology NAS, skip this STEP. Attention: Make sure you have installed the latest Portainer version.

• STEP 3

Go to File Station and open the docker folder. Inside the docker folder, create one new folder and name it changedetection. Follow the instructions in the image below.
Note: Be careful to enter only lowercase, not uppercase letters.

• STEP 4

Log into Portainer using your username and password. On the left sidebar in Portainer, click on Stacks then + Add stack. Follow the instructions in the image below.

• STEP 5

In the Name field type in changedetection. Follow the instructions in the image below.

Note: Copy Paste the code below in the Portainer Stacks Web editor.

version: "3.9"
services:
  changedetection:
    container_name: ChangeDetection
    image: dgtlmoon/changedetection.io
    mem_limit: 4g
    cpu_shares: 768
    security_opt:
      - no-new-privileges:true
    restart: on-failure:5
    ports:
      - 5054:5000
    volumes:
      - /volume1/docker/changedetection:/datastore:rw
    environment:
     - PLAYWRIGHT_DRIVER_URL=ws://playwright-chrome:3000/
  playwright-chrome:
    hostname: playwright-chrome
    container_name: Playwright-Chrome
    image: browserless/chrome:1.60-chrome-stable
    restart: on-failure:5
    environment:
    - SCREEN_WIDTH=1920
    - SCREEN_HEIGHT=1024
    - SCREEN_DEPTH=16
    - ENABLE_DEBUGGER=false
    - PREBOOT_CHROME=true
    - CONNECTION_TIMEOUT=300000
    - MAX_CONCURRENT_SESSIONS=10
    - CHROME_REFRESH_TIME=600000
    - DEFAULT_BLOCK_ADS=true
    - DEFAULT_STEALTH=true
    - DEFAULT_IGNORE_HTTPS_ERRORS=true

• STEP 6

Scroll down on the page until you see a button named Deploy the stack. Click on it. Follow the instructions in the image below. The installation process can take up to a few minutes. It will depend on your Internet speed connection.

• STEP 7

If everything goes right, you will see the following message at the top right of your screen: “Success Stack successfully deployed“.

• STEP 8

Go back to STEP 1 or you will deal with karma 🙂

• STEP 9

The installation process can take up to a few seconds/minutes. It will depend on your Internet speed connection. Now open your browser and type in http://Synology-ip-address:5054 Add a website to start monitoring, add a tag to remember your choice, then click Watch. Follow the instructions in the image below.

• STEP 10

Click the SETTINGS tab, then Fetching. Choose Playwright Chromium/Javascript. Type in 1 in the Wait seconds before extracting text area, then click Save. Follow the instructions in the image below.

• STEP 11

Click Recheck to check the website you are interested in, then click Preview. Follow the instructions in the image below.

• STEP 12

You can choose between Text and Screenshot view. Follow the instructions in the image below.

• STEP 13

🚀Click to Download Changedetection Extension For Chrome

• STEP 14

After you install the Changedetection extension, open your changedetection page at http://Synology-ip-address:5054 then click Settings, then the API tab. Now click on your Changedetection widget and click Sync API Access. Follow the instructions in the image below.

• STEP 15

Now, when you visit a website, you can click on the changedetection extension, then easily add a website to the watch list by clicking Watch this website +. Follow the instructions in the image below.

• STEP 16

After you click Watch this website +, your favorite website will be automatically added to the Changedetection watchlist.

Enjoy Changedetection!

🆘TROUBLESHOOTING

If you encounter issues by using this container, make sure to check out the Common Docker issues article.

Note: If you want to run the Changedetection container over HTTPS, check How to Run Docker Containers Over HTTPS. In order to make Changedetection work via HTTPS, it’s mandatory to activate WebSocket.

Note: Can I run Docker on my Synology NAS? See the supported models.
Note: How to Back Up Docker Containers on your Synology NAS.
Note: Find out how to update the Changedetection container with the latest image.
Note: How to Free Disk Space on Your NAS if You Run Docker.
Note: How to Schedule Start & Stop For Docker Containers.
Note: How to Activate Email Notifications.
Note: How to Add Access Control Profile on Your NAS.
Note: How to Change Docker Containers Restart Policy.
Note: How to Use Docker Containers With VPN.
Note: Convert Docker Run Into Docker Compose.
Note: How to Clean Docker.
Note: How to Clean Docker Automatically.
Note: Best Practices When Using Docker and DDNS.
Note: Some Docker Containers Need WebSocket.
Note: Find out the Best NAS Models For Docker.
Note: Activate Gmail SMTP For Docker Containers.

This post was updated on Thursday / April 18th, 2024 at 2:06 PM