check and notify on no snapshot for X days (specifically for repos without a plan)

[eleith]

for repos without a plan (due to remote host and snapshot jobs being run directly on those hosts), how can one setup a notification if that repo doesn't have a snapshot after X days?

since prunes and checks can be run on these repos, one could run a command before these jobs, to determine what the age of the latest snapshot was.

one would then need to be able to conditionally fire a notification if the age exceeded some threshold.

for now, this doesn't seem possible within backrest, but some valuable building blocks are there.

[garethgeorge]

I think the best bet might be to add a CONDITION_SNAPSHOT_SUCCESS hook that pings a service like healthchecks.io . The idea would be that if the healthcheck URL isn't pinged e.g. for 1 week, you will receive an alert letting you know that the healthcheck has gone stale and this will likely indicate that either backrest stopped running OR an issue is preventing backups from being created successfully.