Machine in Role Feature not working

nitin_kumar_dhir · 30 May 2016 14:46

Hi,

I need a list of servers in which content is deployed to but I am unable to get it using Octopus.Environment.MachinesInRole[role],

What is the best way to get this list, this list is required for F5 Load Balancer Operations

Dalmiro · 30 May 2016 21:26

Hi Kumar,

Thanks for reaching out. Exactly which information about the machines are you looking for?

The computer name set in windows (what you would get by running $env:computername in powershell on the machine)
The name of the Tentacle in Octopus.
The URL/IP of the machine,

Let me know what you are looking for to pass to your F5 Load balancer and I’ll give you a hand fetching that info.

Thanks,
Dalmiro

nitin_kumar_dhir · 1 June 2016 12:03

Hi Dalmiro,

I want all the Octopus.Machine.Name where the content is being deployed.

Thanks,
Nitin

nitin_kumar_dhir · 2 June 2016 12:10

Hi Dalmiro,

Any updates ?

Thanks,
Nitin

From: Dhir, Nitin Kumar
Sent: Wednesday, June 01, 2016 5:05 PM
To: 'Dalmiro Grañas’
Subject: RE: Machine in Role Feature not working [Problems #46090]

Hi Dalmiro,

I want all the Octopus.Machine.Name where the content is being deployed.

Thanks,
Nitin

Dalmiro · 2 June 2016 17:21

Hi Nitin,

Sorry for the delay here. The variable Octopus.Environment.MachinesInRole[_role_] will only return the IDs of the machines (e.g Machines-101) instead of the name which is what you are looking for.

I wrote an API script for your scenario that will help you look for machines in the current environment with a specific role. The good thing about this script is that you can run it from the Octopus server and It’ll still work.

github.com

OctopusDeploy/OctopusDeploy-Api/blob/master/REST/PowerShell/Targets/GetMachinesInCurrentEnvironmentOfSpecificRole.ps1

##CONFIG##
$APIKey = "" #Octopus API. You might wanna create a service account that can only read (all) environments, then create an API key for it and use that Key.
$Role = "" #Role you are looking for

##PROCESS##
$OctopusURL = $OctopusParameters['Octopus.Web.BaseUrl']
$EnvironmentID = $OctopusParameters['Octopus.Environment.Id']
$header = @{ "X-Octopus-ApiKey" = $APIKey }

$environment = (Invoke-WebRequest "$OctopusURL/api/environments/$EnvironmentID" -Headers $header).content | ConvertFrom-Json

$machines = ((Invoke-WebRequest ($OctopusURL + $environment.Links.Machines) -Headers $header).content | ConvertFrom-Json).items

$MachinesInRole = $machines | ?{$Role -in $_.Roles}

##OUTPUT##

#Name of machines in Octopus
$MachinesInRole.Name

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Let me know if it makes sense and helps.

Best regards,
Dalmiro