changedetection.io and browserless v2 docker compose

compose.yml

version: '3.2'

services:
  changedetection:
    image: ghcr.io/dgtlmoon/changedetection.io:latest
    container_name: changedetection
    hostname: changedetection
    volumes:
      - changedetection-data:/datastore
    environment:
      - PORT=5000
      - PUID=1000
      - PGID=1000
      # Ensure this URL matches the name of the playwright service
      - PLAYWRIGHT_DRIVER_URL=ws://playwright-chrome:3000/?headless=false
    ports:
      - 5000:5000
    restart: unless-stopped
    depends_on:
      - playwright-chrome

  playwright-chrome:
    hostname: playwright-chrome
    image: ghcr.io/browserless/chrome
    restart: unless-stopped
    environment:
      - SCREEN_WIDTH=1920
      - SCREEN_HEIGHT=1024
      - SCREEN_DEPTH=16
      - ENABLE_DEBUGGER=false
      # Increased connection timeout to reduce chances of timeout errors
      - TIMEOUT=600000  # Now 10 minutes
      # Increased concurrent sessions for better parallel processing
      - CONCURRENT=15
      
volumes:
  changedetection-data:

Thank you for providing this docker compose file, it helped me get setup with browserless v2. One tweak, to handle v2.2.0+ of browserless. Source:

As of browserless v2.2.0, for the ghcr.io/browserless/chrome image, the /chrome endpoint must be added to the URL, so e.g.:
PLAYWRIGHT_DRIVER_URL=ws://browserless-chrome:3000/chrome?launch={"headless":false}

Just wanted to say your message saved me so much headache as I was having connection errors in Change Detection for so long. Thank you so much for this.

Shame that I can't add an emoji to a gist but same here, super helpful (and the comments) thanks!

I'd love an example of how to leverage browserless.io's unblock as part of changedetection too

Hi. Thanks for this, does this not work for sites using javascript?

Upd: Here's the docker-compose.yml I used. Works great. Most sites run without a proxy, only a few require one. No warnings or errors.
https://pastebin.com/pATyMgu0
I also used a proxies.json as described in the manual here: https://github.com/dgtlmoon/changedetection.io/wiki/Proxy-configuration (you can leave this out if you don't use proxies or prefer to set them in the web UI instead).

Edit: Updated the docker-compose.yml. This version has been running without any issues for over a year now.

• If you're running it behind a reverse proxy, comment out the ports: section and adjust the networks accordingly.
• Browserless chromium is the way to go. I tried every other compatible browser and this is the only one that works reliably with browser steps and the visual filter.
• You may want to tune shm_size, FETCH_WORKERS, and CONCURRENT to your needs. It runs fine on a cheap VPS, but expect around 500 MB RAM idle. If you have a beefier server, feel free to crank those up.
• Replace your-very-secure-token with something randomly generated. I used "openssl rand -hex 32".
• BASE_URL is only relevant if you set up notifications and want the correct server name displayed there, so don't worry too much about it.
• The HEALTH, MAX_CPU_PERCENT, and MAX_MEMORY_PERCENT settings are there so browserless doesn't crash under load. Instead of dying, it'll return an error and keep running. Useful on a low-end VPS.