Using Shoutrrr Generic Schema Fails

[fanuch]

Cannot pass https:// or generic+https:// as a WATCHTOWER_NOTIFICATION_URL

Following with the tutorial for notifications I would like my own proxy so as a test I've ran:

docker run --name watchtower  \
   -v /var/run/docker.sock:/var/run/docker.sock \
   -e WATCHTOWER_MONITOR_ONLY=true \
   -e WATCHTOWER_NOTIFICATIONS=shoutrrr \
   -e WATCHTOWER_NOTIFICATION_URL="generic+https://redacted.tld/foo/bar" \
containrrr/watchtower

And I receive:

time="2021-12-17T04:33:10Z" level=fatal msg="Failed to initialize Shoutrrr notifications: error initializing router services: unknown service \"generic\"\n"

As per my PR for Shoutrrr containrrr/shoutrrr#218 to discover the schema for generic, I would expect to be able to pass through generic+https:// on Watchtower as that is a valid schema.

[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! 🙏

[piksel]

The generic notifications are not in the latest watchtower release. The documentation should point to https://containrrr.dev/shoutrrr/v0.4/services/overview/, but it has been updated for some reason. Sorry about that. You can try the unstable development version of watchtower using containrrr/watchtower:latest-dev, which should use shoutrrr v0.5.

[fanuch]

Thank you!

I happened to have have done some extra testing just now but I did find it works ..... but on the command line as a binary (confusion noises)

TL:DR; binary does work with generic+https:// but not container (based on the comment, is that due to pulling main isn't in parity with :latest?)

---

Compiled binary using flags - WORKS

watchtower on  main via 🐹 v1.17 on 🐳 v20.10.11
➜ ./watchtower -n shoutrrr --notification-url "generic+https://redacted.tld/foo/bar"
INFO[0001] Watchtower v1.3.0-47-gd2f1185
INFO[0001] Using notifications: generic+https
INFO[0001] Checking all containers (except explicitly disabled with label)
INFO[0001] Scheduling first run: 2021-12-18 19:17:59 +1100 AEDT
INFO[0001] Note that the first check will be performed in 23 hours, 59 minutes, 59 seconds
^CINFO[0027] Waiting for running update to be finished...

Docker with recommended env var - FAILS

watchtower on  main via 🐹 v1.17 on 🐳 v20.10.11 took 3s
➜ docker run \
	--name watchtower \
	-v /var/run/docker.sock:/var/run/docker.sock  \
	-e WATCHTOWER_MONITOR_ONLY=true  \
	-e WATCHTOWER_NOTIFICATIONS=shoutrrr  \
	-e WATCHTOWER_NOTIFICATION_URL="generic+https://redacted.tld/foo/bar" containrrr/watchtower \
	--monitor-only
time="2021-12-17T08:18:52Z" level=fatal msg="Failed to initialize Shoutrrr notifications: error initializing router services: unknown service \"generic\"\n"

Docker with mixed env var and commands - FAILS

watchtower on  main via 🐹 v1.17 on 🐳 v20.10.11
➜ docker run \
	--name watchtower \
	-v /var/run/docker.sock:/var/run/docker.sock \
	-e WATCHTOWER_NOTIFICATIONS=shoutrrr containrrr/watchtower \
	--monitor-only \
	--notification-url "generic+https://redacted.tld/foo/bar"
time="2021-12-17T08:20:00Z" level=fatal msg="Failed to initialize Shoutrrr notifications: error initializing router services: unknown service \"generic\"\n"

Docker using commands ... - maybe passes?

watchtower on  main via 🐹 v1.17 on 🐳 v20.10.11
➜ docker run \
	--name watchtower \
	-v /var/run/docker.sock:/var/run/docker.sock containrrr/watchtower \
	--notification-url "generic+https://redacted.tld/foo/bar"
time="2021-12-17T08:20:36Z" level=info msg="Watchtower 1.3.0\nUsing no notifications\nChecking all containers (except explicitly disabled with label)\nScheduling first run: 2021-12-18 08:20:36 +0000 UTC\nNote that the first check will be performed in 23 hours, 59 minutes, 59 seconds"
^Ctime="2021-12-17T08:21:08Z" level=info msg="Waiting for running update to be finished..."

Docker with all commands - FAILS

watchtower on  main via 🐹 v1.17 on 🐳 v20.10.11
➜ docker run \
	--name watchtower \
	-v /var/run/docker.sock:/var/run/docker.sock containrrr/watchtower \
	-n shoutrrr \
	--notification-url "generic+https://redacted.tld/foo/bar"
time="2021-12-17T08:21:43Z" level=fatal msg="Failed to initialize Shoutrrr notifications: error initializing router services: unknown service \"generic\"\n"

[simskij]

As @piksel said; if you want it to work with the docker image, you'll have to specify the containrrr/watchtower:latest-dev image for now. It's bleeding edge, but includes the changes.

TL:DR; binary does work with generic+https:// but not container (based on the comment, is that due to pulling main isn't in parity with :latest?)

Correct!

[fanuch]

Thanks all!