Failed to parse int from \"0: strconv.Atoi: parsing \"\\\"0\": invalid syntax"

[knuurr]

Describe the bug

Upon starting container, I get error from title in logs.

Below you'll find my docker-compose file.

Some context: I try to use my internal apprise-api container as notification sinkhole together with Shoutrrr generic handler, this is why You'll se it configured.

Steps to reproduce

1. Prepare docker-compose with my config
2. Launch it and observe logs

Expected behavior

Watchtower container launches and additionaly sends notification to endpoint.

Screenshots

No response

Environment

• Platform
  Ubuntu 22.04.3 LTS
• Architecture
  x64
• Docker Version
  Docker version 24.0.5, build 24.0.5-0ubuntu1~22.04.1

Your logs

watchtower  | time="2024-02-04T03:37:04+01:00" level=error msg="Failed to parse int from \"0: strconv.Atoi: parsing \"\\\"0\": invalid syntax"
watchtower  | time="2024-02-04T03:37:54+01:00" level=error msg="Failed to parse int from \"0: strconv.Atoi: parsing \"\\\"0\": invalid syntax"
watchtower  | time="2024-02-04T03:39:13+01:00" level=error msg="Failed to parse int from \"0: strconv.Atoi: parsing \"\\\"0\": invalid syntax"
watchtower  | time="2024-02-04T03:40:42+01:00" level=error msg="Failed to parse int from \"0: strconv.Atoi: parsing \"\\\"0\": invalid syntax"

Additional context

Docker compose I use for launching:

version: '3.7'


networks:
  backend:
    external: true 


services:
  watchtower:
    container_name: watchtower
    image: containrrr/watchtower
    volumes:
      # Ensure proper timezones
      - /etc/localtime:/etc/localtime:ro
      - /etc/timezone:/etc/timezone:ro
      # Docker Socket
      - /var/run/docker.sock:/var/run/docker.sock:ro
    environment:
      - WATCHTOWER_SCHEDULE="0 0 19 * * *"
      # Will only monitor for new images, send notifications and invoke the pre-check/post-check hooks, but will not update the containers.
      - WATCHTOWER_INCLUDE_STOPPED=true
      - WATCHTOWER_INCLUDE_RESTARTING=true
      - WATCHTOWER_MONITOR_ONLY=true
      # Gotify notifications
      - WATCHTOWER_NOTIFICATIONS=shoutrrr
      # Apprise workaround shenanigans
      - WATCHTOWER_NOTIFICATION_URL=generic+http://apprise-api:8000/notify/apprise?messageKey=body&$$tag=watchtower
    networks:
      - backend
      
  

[github-actions]

Hi there! 👋🏼 As you're new to this repo, we'd like to suggest that you read our code of conduct as well as our contribution guidelines. Thanks a bunch for opening your first issue! 🙏

[miguesan01]

I’ve just had that error in my compose file, try removing quotes in WATCHTOWER_SCHEDULE string so it looks like this:

• WATCHTOWER_SCHEDULE=0 0 19 * * *

This worked for me.

[nicklutt]

@knuurr , did ever get it to work? I have trouble with shoutrrr generic to my apprise-api. invalid json..

[knuurr]

@knuurr , did ever get it to work? I have trouble with shoutrrr generic to my apprise-api. invalid json..

Hi, no I gave up tbh. I switched to using Renovate via GH Actions to utiliza GitOps.

[XavierChevalier]

I’ve just had that error in my compose file, try removing quotes in WATCHTOWER_SCHEDULE string so it looks like this:

• WATCHTOWER_SCHEDULE=0 0 19 * * *

This worked for me.

I faced the same issue. Removing quotes of this variable in the docker compose file works great 🎉
Thank you @miguesan01!