Public/Get-ArmorVm.ps1

Function Get-ArmorVM
{
    <#
        .SYNOPSIS
        The Get-ArmorVM function displays a list of virtual machines in your account.

        .DESCRIPTION
        { required: more detailed description of the function's purpose }

        .NOTES
        Troy Lindsay
        Twitter: @troylindsay42
        GitHub: tlindsay42

        .PARAMETER Name
        The name of a VM in the Armor account. Wildcard matches are supported. The default value is null.

        .PARAMETER ID
        The ID of a VM in the Armor account. The default value is 0.

        .PARAMETER ApiVersion
        The API version. The default value is $Global:ArmorConnection.ApiVersion.

        .INPUTS
        None
            You cannot pipe objects to Get-ArmorVM.

        .OUTPUTS
        System.Management.Automation.PSCustomObject[]

        .LINK
        https://github.com/tlindsay42/ArmorPowerShell

        .LINK
        https://docs.armor.com/display/KBSS/Armor+API+Guide

        .LINK
        https://developer.armor.com/

        .EXAMPLE
        Get-ArmorVM

        Description
        -----------

        Returns all VMs in the Armor account that currently has context.

        .EXAMPLE
        Get-ArmorVM -Name ARMO25VML01-gen4

        Description
        -----------

        Returns the specified VM in the Armor account that currently has context.

        .EXAMPLE
        Get-ArmorVM -Name *-gen4

        Description
        -----------

        Returns all VMs in the Armor account that currently has context that have a name that ends with '-gen4'.

        .EXAMPLE
        Get-ArmorVM -Name *hacked*

        Description
        -----------

        Returns null.
    #>


    [CmdletBinding()]
    Param
    (
        [Parameter( Position = 0 )]
        [String] $Name = '',
        [ValidateRange( 1, 65535 )]
        [UInt16] $ID = 0,
        [Parameter( Position = 1 )]
        [ValidateScript( { $_ -match '^v\d+\.\d$' } )]
        [String] $ApiVersion = $Global:ArmorConnection.ApiVersion
    )

    Begin
    {
        # The Begin section is used to perform one-time loads of data necessary to carry out the function's purpose
        # If a command needs to be run with each iteration or pipeline input, place it in the Process section

        # API data references the name of the function
        # For convenience, that name is saved here to $function
        $function = $MyInvocation.MyCommand.Name

        Write-Verbose  -Message ( 'Beginning {0}.' -f $function )

        # Check to ensure that a session to the Armor cluster exists and load the needed header data for authentication
        Test-ArmorConnection
    } # End of Begin

    Process
    {
        # Retrieve all of the URI, method, body, query, location, filter, and success details for the API endpoint
        Write-Verbose -Message ( 'Gather API Data for {0}.' -f $function )
        
        $resources = Get-ArmorApiData -Endpoint $function -ApiVersion $ApiVersion

        $uri = New-ArmorApiUriString -Server $Global:ArmorConnection.Server -Port $Global:ArmorConnection.Port -Endpoints $resources.Uri -IDs $ID

        $uri = New-ArmorApiUriQueryString -QueryKeys $resources.Query.Keys -Parameters ( Get-Command -Name $function ).Parameters.Values -Uri $uri

        $results = Submit-ArmorApiRequest -Uri $uri -Headers $Global:ArmorConnection.Headers -Method $resources.Method

        $results = Expand-ArmorApiResult -Results $results -Location $resources.Location

        $results = Select-ArmorApiResult -Results $results -Filter $resources.Filter

        If ( $results.Count -eq 0 ) { Write-Host -Object 'No Armor VMs found.' }

        Return $results
    } # End of Process

    End
    {
        Write-Verbose -Message ( 'Ending {0}.' -f $function )
    } # End of End
} # End of Function