Defer or disable notifications when registry is down

[qqilihq]

Is your feature request related to a problem? Please describe.

We’re running our own Docker registry which is on scheduled maintenance during the night. During this time, when Watchtower cannot access the registry, our Slack channels will be flooded with messages:

Describe the solution you'd like

An ideal solution, though obviously quite narrow to our use case, would be, that errors about an unreachable registry are only propagated after x failed attempts, or y minutes.

Describe alternatives you've considered

Alternatively, completely turning off notifications about unreachable registries might work for us as well -- while retaining other info and error notifications. (doesn’t seem to be possible with the current log levels, as the mentioned message is logged with info)

Additional context

I understand that this is probably a quite “special” case, so I’m not expecting a feature like this. However, I’d like to hear how/if others are dealing with this situation.

[welcome]

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

[simskij]

We already have a suggestion in place for implementing per container maintenance windows. Seems like that would solve your use case as well. Closing this issue in favor of #97

[qqilihq]

Thx.