feat: Alert triggers shell command

[randombugs]

New Issue as discussed in #117 .

Having the option to execute commands would also allow for 'custom alerts' like sending alerts through other Services then implemented. An Example is Signal Messenger which needs signal-cli for sending messages.

But the possibilities are endless... :)

TwinProduction Reply #117 (comment)

As for the ability to execute custom commands, that's a little tricky, because Gatus' Docker image uses the scratch image, which means that adding support for any custom commands would require also modifying the Docker image.

I'm not saying it's off the table, but for now, unless somebody has an actual use for it, I don't think it's worth considering.

[TwiN]

#47 will likely need to be completed before we can do this, since the Docker image built uses scratch and has no shell of its own.

[Sim0nW0lf]

Any news here?

My usecase would be to just try to restart the program which would be really good! In most cases that will resolve the issue in my setups...

[TwiN]

My usecase would be to just try to restart the program which would be really good!

@Sim0nW0lf You can technically already do by deploying an app with an API that allows you to restart your application(s) and calling it via the custom alerting provider.

[ser]

I would second request for a shell alert trigger, I potentially could setup API triggering mqtt, but it's easier to call binary doing that in one line.