How can I list all tags for a Docker image on a remote registry?

Question

How can I list all tags of a Docker image on a remote Docker registry using the CLI (preferred) or curl?

Preferably without pulling all versions from the remote regi

Answer 1

Here's a Powershell script I wrote for Windows. Handles v1 and v2 repos:

Get-DockerImageVersions.ps1:

param (
  [Parameter (Mandatory=$true)]$ImageName,
  [Parameter (Mandatory=$false)]$RegistryURL
)

if (!$RegistryURL) 
{
  $RegistryURL = "https://registry.hub.docker.com/v1/repositories"
}

$list = ""
if ($RegistryURL -like "*v2*") 
{
  $list = "/list"
}

$URL = "$RegistryURL/$ImageName/tags$list"

write-debug $URL
$resp = Invoke-WebRequest -UseBasicParsing $URL | ConvertFrom-Json

if ($RegistryURL -like "*v2*") 
{
  $tags = $resp | select tags
  $tags.tags
} else {
  $tags = $resp | select name
  $tags.name
}