Add emailing capacities

[deajan]

For those who don't want to play with prometheus, add emailing capacities:

• On success
• On failure
• On too old backups

Those emails should contain the last let's say 1000 lines of logs in case of failure.

[lcswillems]

Possible to be able to ping an URL (e.g. healthchecks.io) with "/success" added at the end of the URL in case of success and "/failure" added in case of failure?

[deajan]

Sure, that would be fairly easy to do.
Actually, healthechecks.io has been (quickly) discussed here #140

I don't really know that service. Does it take some POST data ? How do you identify which asset pings /success or /failure ?

[lcswillems]

I would say I could provide 2 URLs, one for success and one for failure, and npbackup calls the success one when there is success and the failure one when there is failure.

https://healthchecks.io/docs/signaling_failures/

[deajan]

@lcswillems Okay, I see, you just need to set an arbitrary UUID given by healthchecks in the URI.
Looks straightforward.