[BUG] Playwright Connection Error

[JonLaliberte]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

Exception: HTTPConnectionPool(host='browser-chrome', port=4444): Max retries exceeded with url: /wd/hub/session (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x761ea384da90>: Failed to establish a new connection: [Errno -3] Try again'))

Expected Behavior

No response

Steps To Reproduce

Fresh install (docker compose)
I changed to use WebDriver Chrome/Javascript in Settings.

Environment

- OS: Ubuntu 22.04
- How docker service was installed: distro's packagemanager

CPU architecture

x86-64

Docker creation

changedetection.io:
    image: lscr.io/linuxserver/changedetection.io:latest
    container_name: changedetection
    environment:
      - PUID=1010
      - PGID=1010
      - TZ=America/New_York
      - BASE_URL= https://changedetection.myserver.io/
    volumes:
      - /opt/appdata/changedetection/config:/config
    ports:
      - 5000:5000
    restart: unless-stopped

Container logs

[migrations] started
[migrations] no migrations found
usermod: no changes
───────────────────────────────────────

      ██╗     ███████╗██╗ ██████╗
      ██║     ██╔════╝██║██╔═══██╗
      ██║     ███████╗██║██║   ██║
      ██║     ╚════██║██║██║   ██║
      ███████╗███████║██║╚██████╔╝
      ╚══════╝╚══════╝╚═╝ ╚═════╝

   Brought to you by linuxserver.io
───────────────────────────────────────

To support LSIO projects visit:
https://www.linuxserver.io/donate/

───────────────────────────────────────
GID/UID
───────────────────────────────────────

User UID:    1010
User GID:    1010
───────────────────────────────────────

[custom-init] No custom files found, skipping...
2024-04-30 16:05:00.886 | INFO     | changedetectionio.store:__init__:45 - Datastore path is '/config/url-watches.json'
2024-04-30 16:05:00.886 | DEBUG    | changedetectionio.model.Watch:history:218 - Reading watch history index for f54e629f-618c-4e94-9de8-ba324d3c8891
2024-04-30 16:05:00.887 | INFO     | changedetectionio.store:__init__:86 - Watching: f54e629f-618c-4e94-9de8-ba324d3c8891 https://news.ycombinator.com/
2024-04-30 16:05:00.887 | INFO     | changedetectionio.store:__init__:86 - Watching: 9b795ce4-ba3f-4f03-9fbd-ba55450cb962 https://site.com
2024-04-30 16:05:00.887 | INFO     | changedetectionio.store:sync_to_json:420 - Saving JSON..
(144) wsgi starting up on http://0.0.0.0:5000
2024-04-30 16:05:00.906 | DEBUG    | changedetectionio.content_fetchers:<module>:41 - Falling back to selenium as fetcher
2024-04-30 16:05:00.907 | DEBUG    | changedetectionio.flask_app:ticker_thread_check_time_launch_checks:1677 - System env MINIMUM_SECONDS_RECHECK_TIME 20
(144) accepted ('127.0.0.1', 38716)
Connection to localhost (127.0.0.1) 5000 port [tcp/*] succeeded!
[ls.io-init] done.
(144) accepted ('172.18.0.12', 51196)
xxx.xxx.xxx.xxx,y.y.y.y,172.18.0.12 - - [30/Apr/2024 16:05:20] "GET / HTTP/1.1" 200 8084 0.103389
(144) accepted ('172.18.0.12', 51200)
xxx.xxx.xxx.xxx,162.158.158.135,172.18.0.12 - - [30/Apr/2024 16:05:20] "GET /static/favicons/site.webmanifest HTTP/1.1" 304 342 0.004145
(144) accepted ('172.18.0.12', 51202)
xxx.xxx.xxx.xxx,y.y.y.y,172.18.0.12 - - [30/Apr/2024 16:05:24] "GET /api/checknow?uuid=9b795ce4-ba3f-4f03-9fbd-ba55450cb962 HTTP/1.1" 302 651 0.003816
(144) accepted ('172.18.0.12', 51212)
xxx.xxx.xxx.xxx,y.y.y.y,172.18.0.12 - - [30/Apr/2024 16:05:24] "GET / HTTP/1.1" 200 8328 0.018804
(144) accepted ('172.18.0.12', 51218)
xxx.xxx.xxx.xxx,162.158.158.135,172.18.0.12 - - [30/Apr/2024 16:05:24] "GET /static/favicons/site.webmanifest HTTP/1.1" 304 342 0.002975
2024-04-30 16:05:24.911 | INFO     | changedetectionio.update_worker:run:248 - Processing watch UUID 9b795ce4-ba3f-4f03-9fbd-ba55450cb962 Priority 1 URL https://site.com
(144) accepted ('172.18.0.12', 42368)
xxx.xxx.xxx.xxx,y.y.y.y,172.18.0.12 - - [30/Apr/2024 16:05:43] "GET / HTTP/1.1" 200 8108 0.003705
(144) accepted ('172.18.0.12', 42384)
xxx.xxx.xxx.xxx,y.y.y.y.,172.18.0.12 - - [30/Apr/2024 16:05:43] "GET /static/favicons/site.webmanifest HTTP/1.1" 304 342 0.000738
2024-04-30 16:05:44.973 | ERROR    | changedetectionio.update_worker:run:463 - Exception reached processing watch UUID: 9b795ce4-ba3f-4f03-9fbd-ba55450cb962
2024-04-30 16:05:44.973 | ERROR    | changedetectionio.update_worker:run:464 - HTTPConnectionPool(host='browser-chrome', port=4444): Max retries exceeded with url: /wd/hub/session (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x75f8dd067910>: Failed to establish a new connection: [Errno -3] Try again'))
2024-04-30 16:05:44.974 | DEBUG    | changedetectionio.update_worker:run:541 - Watch 9b795ce4-ba3f-4f03-9fbd-ba55450cb962 done in 20.06s

[github-actions]

Thanks for opening your first issue here! Be sure to follow the relevant issue templates, or risk having this issue marked as invalid.

[JonLaliberte]

I'm wondering if although Playwright is installed in the container now, if I still need to add a separate container for the browser itself and point to it in the environment variables?

[thespad]

Yes, you do. Shipping a browser with the image would add the best part of a gig to its size and people would just complain it wasn't the browser they wanted.

[j0nnymoe]

As mentioned in the readme, it has the playwrite content fetcher: https://github.com/dgtlmoon/changedetection.io/wiki/Playwright-content-fetcher

[JonLaliberte]

Thanks, sorry about that. I was thinking that Playwright contained the browser as well.
The combination of lsio docs + original project docs was a bit confusing, since they conflict in some places - specifically regarding Playwright being installed/needing to be installed.

All makes sense now though. Thanks again.

I added a post on the forum here: https://discourse.linuxserver.io/t/changedetection-io-playwright-configuration-with-docker-compose/8866