External Watchdog

PowerShell Universal
1

Has anybody created an external watchdog service or is using a prebuilt one?

One of two PSU installations stops responding regularly, no hint in the logs. As it’s from minor importance I currently restart the windows service manually if I register it. But this may become a problem for my vacational planning :rofl:

My idea was to implement a small powershell script which checks the alive API and performs the service restart if needed. But I’d prefer to use something which already exists…

Product: PowerShell Universal
Version: 4.2.3
1 Like
2

I have not, but since you have two installs it sounds like you could use one to monitor the other?

3

You could use an application gateway / proxy in Azure to make a simple endpoint securely available on the internet and monitor it using UptimeRobot. UptimeRobot: Free Website Monitoring Service

4

Nice idea, but the servers are in an internal production network and therefor not reachable (by design) from Azure.

5

I’ve come to the conclusion that there seems to be no quick solution for this. For Linux etc. I’d take a look at Monit, but it’s not available on Windows. I’ll propose the creation of a generic solution for our next sprint.

  • PowerShell module
  • Allows the definition of a Watch-Instance, consisting of
    • Title
    • Script-Block to perform the health check
    • Intervall for the checks
    • Script-Block for the action to perform if the health check fails
    • Mail properties
  • Install the Watch-Instance as a scheduled task
    • Starts every 5min
    • One instance per watcher
  • Perform the health check
  • If this fails, perform the repair-action
  • Optionally send mails to inform about the problem
6

Finished the first release of my WatchDog PowerShell Module. The mailing part has been dropped from the requirements as our regular monitoring solution does this perfectly. And I did not want to rely on additional prerequisites.

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