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Show HN: Sigabrt.dev – cronjob monitor with an SSH TUI

23 pointsby 1d agosigabrt.dev
12 comments
Hello HN. I built this mostly to monitor the things I host myself. I know it's nothing too exciting.

Anyway, the TL;DR is: Create an endpoint, and if your script/cronjob fails to regularly ping it, you get notified (by email or ntfy). E.g.:

    0 * * * * ./script.sh && curl -fsS https://sigabrt.dev/pulse/<id>/beat
It also has an SSH TUI which is currently experimental and read-only, mostly because I'm not sure whether it is actually useful or just a gimmick :):

    ssh sigabrt.dev
To use it, simply add your SSH public key in your account settings.

Yes, there are services like this already, and this is minimalistic by comparison. Feedback is welcome.

1h agoHN ↗

If you need/want a dashboard it's kinda cool. There's a lot of other options that will do something similar, but not via SSH. Crontab can email you directly, no need for a service.

You could also just use systemd timers and do: systemctl --failed -t service

29m agoHN ↗

You are missing the biggest value offering here - service such as the one linked here (or healthchecks io that I personally use) will let you know that signal didn't arrive even when other things on your end failed (e.g. cron having a hard time sending failure email due to incorrect smtp credentials). I use those kind of healthchecks literally for everything, especially for backups - they saved my ass many times over.

28m agoHN ↗

You need some sort of external monitor for a missed pulse style alert. Personally I do something similar by collecting a "last success" metric with Prometheus and alerting on it with Grafana if the value is too far in the past. The local system cannot reliably alert if your job does not fail into the alert path or the system is just down.

I can see something like this being a great intermediate option to a full monitoring and alerting stack.

44m agoHN ↗

I'll never understand commenting to show HNs with a link to competing products.

20m agoHN ↗

Because OP is trying to promote his project and get feedback, and you post about a competing product, to me the message is: don't look at the project OP wants you to check out, I've been using this instead and and it's amazing!

Who cares what you're using, I see show HN posts to be about OP's project, seems like a dick move to me to diverge attention to some other project. I just don't understand the motivation

12m agoHN ↗

If it has context I appreciate them because it helps me make better informed decisions. Why not? HN isn't an editorials page exclusive for posters (except YC slop lol)

3m agoHN ↗

I've been toying with a similar idea for ~6 months: A lightweight job status dashboard.

I wanted something that required no setup, but could just push success/failure messages to as part of various cron jobs, windows tasks, and shell scripts we run throughout our organization.

StatShed server: https://github.com/statshed/statshed-server StatShed go-cli: https://github.com/statshed/statshed-gocli

The idea is kind of like "ntfy.sh", but for jobs status. You can send a "started" message at the beginning, update a "status" message periodically throughout the job, then send a "failed" message (optionally with logs) or a "success". Then a web dashboard gives you an overview with ability to drill down.

We use Icinga for monitoring and paging, but this just gives an overview for a quick look at things we don't want heavy duty monitoring on. Like my laptop backups, information about ansible runs across our fleet, etc.