Azure Tags issue

Question

I am picking information from CSV file and i have mentioned tags like @{"R"="red";"B"="Blue"}. when i am assigning tags value to variable , it is printing on same format but while adding tags to vm i am getting below error ,

Set-AzResource : Cannot bind parameter 'Tag'. Cannot convert the "System.Collections.Hashtable" value of type "System.String" to



$tags| convertfrom-stringdata 

but the problem is after running add tag command for Vm , it is adding tag like below @{"r : ="red";"B"="Blue"}

How can i add both tag as a separate like r:red b:blue

$rss = Import-csv "C:\abc\VijayGupta\Desktop\Vm_build_azure.csv"
$tag = $rss.vmtags 
$tags = $tag | ConvertFrom-StringData
$vms=Get-AzResource -Name abc -ResourceGroupName Southindia
Set-AzResource -ResourceId $vms.Id -Tag $tags -Force

Answer 1

If I understand the question, in your CSV file, there is a column called vmtags. The values in that column are strings in the form of @{"R"="red";"B"="Blue"}.

The Get-AzResource cmdlet wants a Hashtable object for its -Tags parameter. I think you took the description MS gives: Key-value pairs in the form of a hash table. For example: @{key0="value0";key1=$null;key2="value2"} a bit too literal there and now you need to create an actual Hashtable object from its string representation.

To create a Hashtable from a string like that you can use

# create a scriptblock using the string
$scriptBlock = [scriptblock]::Create('@{"R"="red";"B"="Blue"')
# execute it to create the hashtable
$tags = (& $scriptBlock)

$tags is now a Hashtable containing

Name                           Value
----                           -----
R                              red
B                              Blue

If you need to create a Hashtable from multiple strings, do something like

$vmtags = '@{"R"="red";"B"="Blue"}', '@{"G"="green";"A"="Alpha"}'

# first loop creates the hashtables from the individual strings
$arr = $vmtags | ForEach-Object {
    $scriptBlock = [scriptblock]::Create($_)
    & $scriptBlock
}

# the second loop merges all Hashtables in the array into one
$tags = @{}
$arr | ForEach-Object {
    foreach ($key in $_.Keys) {
        $tags[$key] = $_.$key
    }
}

$tags is now a Hashtable containing

Name                           Value
----                           -----
R                              red
B                              Blue
A                              Alpha
G                              green