Consul watch handler in PowerShell

[Rajinder Singh]

I have a windows only consul setup.

We are monitoring the health of Window Services.

We have Powershell scripts that  determine if a service is running.

I want to restart the service if it has unexpected shutdown.

So i am trying to  use watches.

  "watches": [

{

"type": "checks",

"state": "critical",

"handler": "PowerShell -ExecutionPolicy Bypass -NoProfile -File C:\\scripts\\StartService.ps1"

}

  ]

I am trying to figure out how to access Payload in the handler script.

I have log level at debug and I do see handle script executes.

I need to payload to determine which service health check failed.

However I cannot figure out how to get the value of payload in a powershell script.

Automatic variable $input is empty. $args is empty as well

Let me know if somebody has a PowerShell watch handler example.

[Rajinder Singh]

We are in a catch 22 situation 

Current watcher implementation does not allow us to filter based on health check name.

So we have no option but to read the payload. The fact that I have not been able to find a way to read payload has stopped us in our tracks. 

I wanted to share a few different things but no success so far.

This is the script that is invoked by watcher.

PowerShell -ExecutionPolicy Bypass -NoProfile -File C:\\scripts\\StartService.ps1

In StartService.ps1

 param(

        [Parameter(ValueFromPipeline=$true, Position=1)]

        $payload

    )

This should allow payload to be either piped or passed in as an argument.

I am printing the value of payload and its blank.

I may have to start reading the code to see how payload is passed into the handler script.
I did not find any example of a bash script or powershell script in the documentation for watches.

If I can get this to work I will contribute PowerShell example to help others.

[Eugene Bogatenkov]

Here is a working example in case someone still needs it:

read-host | Out-File -FilePath C:\Consul\handler.log