Artifactory docker cleanup script (max unique tags + exclude tags)

Remove-DockerImage.ps1

# This script will keep defined number of max unique tags, exclude specific tags and remove the rest.
# Compatible with PowerShell Core 6+
# Author: https://github.com/MyKEms

#Settings
[string]$userName = "ArtifactoryUsername"
[string]$userPassword = "ArtifactoryUserPassword/Token"
$max_unique_tags = 17
$exclude_tags = "latest|mater"
$repository = "docker-repository"
$base_url = "https://some-instance.jfrog.io/artifactory/"
$DryRun = $true #Set to false to remove images

#Make a list of docker images with extra props based on settings
$body = @"
items.find({
    "name":{
       "`$eq":"manifest.json"
    },
    "repo":{
        "`$eq":"$repository"
    }
 }).include("modified_by","original_sha1","id","size","updated","original_md5","repo","property.value","actual_md5","created_by","actual_sha1","property.key","sha256","type","path","depth","modified","name","created")
"@
[SecureString]$secureString = $userPassword | ConvertTo-SecureString -AsPlainText -Force 
[PSCredential]$cred = New-Object System.Management.Automation.PSCredential -ArgumentList $userName, $secureString
$resp = Invoke-RestMethod -Method Post -Uri "$($base_url)api/search/aql" -ContentType "text/plain" -Body $body -Authentication Basic -Credential $cred
$images_arr = @()
foreach ( $item in $resp.results ) {
    $artifact_url = $base_url+$item.repo+'/'+$item.path
    $item | Add-Member -Type NoteProperty -Name "artifact_url" -Value $artifact_url
    $item | Add-Member -Type NoteProperty -Name "docker_image" -Value $($item.path | Select-String "((?!\/).*\/)").Matches.Value
    $item | Add-Member -Type NoteProperty -Name "docker_tag" -Value $($item.path | Select-String "\/(?:.(?!\/))+$").Matches.Value
    $images_arr += $item
}

#Skip defined max unique tags and list the rest
$docker_image_unique = $images_arr.docker_image | Sort-Object | Get-Unique
$to_remove = @()
foreach ($item in $docker_image_unique) {
    $match = $images_arr | Where-Object {$item -Contains $_.docker_image}
    $to_remove += $match | Sort-Object -Property updated -Descending | Select-Object -Skip $max_unique_tags
}

#Exclude tags form remove list
$to_remove = $to_remove | Where-Object { $_.docker_tag -notmatch $exclude_tags }

#Remove images from the Artifactory
foreach ( $item in $to_remove.artifact_url ) {
    if ($DryRun) {
        Write-Output "[DRYRUN CLEANUP] Removing image: $item"
    }
    else {
        Write-Output "[CLEANUP] Removing image: $item"
        Invoke-RestMethod -Method Delete -Uri $item -Credential $cred -Authentication Basic
    }
}