Public/Condition Functions/Add-ConOr.ps1
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function Add-ConOr { <# .SYNOPSIS Adds the condition function "Fn::Or" to a resource property .DESCRIPTION Returns true if any one of the specified conditions evaluate to true, or returns false if all of the conditions evaluates to false. Fn::Or acts as an OR operator. The minimum number of conditions that you can include is 2, and the maximum is 10. .LINK http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/intrinsic-function-reference-conditions.html#intrinsic-function-reference-conditions-or .PARAMETER Condition A condition such as Fn::Equals that evaluates to true or false. .EXAMPLE Add-ConOr -Conditions (Add-ConEquals -FirstValue "sg-mysggroup" -SecondValue (Add-FnRef -Ref "ASecurityGroup")),(Add-ConEquals -FirstValue "Production" -SecondValue (Add-FnRef -Ref "Environment")) When the template is exported, this will convert to: {"Fn::Or":[{"Fn::Equals":["sg-mysggroup",{"Ref":"ASecurityGroup"}]},{"Fn::Equals":["Production",{"Ref":"Environment"}]}]} .NOTES You can use the following functions in this condition statement: Fn::FindInMap Ref Other condition functions .FUNCTIONALITY Vaporshell #> [OutputType('Vaporshell.Condition.Or')] [cmdletbinding()] Param ( [parameter(Mandatory = $true,Position = 0)] [ValidateCount(2,10)] [ValidateScript({ $allowedTypes = "Vaporshell.Function.FindInMap","Vaporshell.Function.Ref","Vaporshell.Condition" if ([string]$($_.PSTypeNames) -match "($(($allowedTypes|ForEach-Object{[RegEx]::Escape($_)}) -join '|'))") { $true } else { throw "The MapName parameter only accepts the following types: $($allowedTypes -join ", "). The current types of the value are: $($_.PSTypeNames -join ", ")." } })] [System.Object[]] $Conditions ) $obj = [PSCustomObject][Ordered]@{ "Fn::Or" = @($Conditions) } $obj | Add-ObjectDetail -TypeName 'Vaporshell.Condition','Vaporshell.Condition.Or' Write-Verbose "Resulting JSON from $($MyInvocation.MyCommand): `n`n`t$($obj | ConvertTo-Json -Depth 5 -Compress)`n" } |