Functions/Public/Get-DockerImageManifest.ps1
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function Get-DockerImageManifest { [CmdletBinding(DefaultParameterSetName='Unauthenticated')] param( [ValidateNotNullOrEmpty()] [string] $Registry = 'https://registry.hub.docker.com', [Parameter(ParameterSetName='BearerToken')] [ValidateNotNullOrEmpty()] [string] $Token, [Parameter(ParameterSetName='HeaderApiKey')] [ValidateNotNullOrEmpty()] [string] $HeaderKey, [Parameter(ParameterSetName='HeaderApiKey')] [ValidateNotNullOrEmpty()] [string] $HeaderValue, [Parameter(ParameterSetName='BasicAuthentication')] [ValidateNotNullOrEmpty()] [pscredential] $Credential, [Parameter(Mandatory)] [ValidateNotNullOrEmpty()] [string] $Repository, [ValidateNotNullOrEmpty()] [string] $Tag = 'latest', [ValidateSet('v1', 'v2')] [string] $ManifestVersion = 'v2' ) $ContentType = 'application/vnd.docker.distribution.manifest.v2+json' if ($ManifestVersion -eq 'v1') { $ContentType = 'application/vnd.docker.distribution.manifest.v1+json' } $Params = @{ UseBasicParsing = $true Method = 'Get' Uri = "$Registry/v2/$Repository/manifests/$Tag" Headers = @{ Accept = $ContentType } } if ($PSCmdlet.ParameterSetName -ieq 'BearerToken') { $Params.Headers.Add('Authorization', "Bearer $Token") } elseif ($PSCmdlet.ParameterSetName -ieq 'HeaderApiKey') { $Params.Headers.Add($HeaderKey, $HeaderValue) } elseif ($PSCmdlet.ParameterSetName -ieq 'BasicAuthentication') { $Token = Get-PlaintextFromSecureString -SecureString $Credential.Password $Authentication = "$($Credential.UserName):$Token" | ConvertTo-Base64 $Params.Headers.Add('Authorization', "Basic $Authentication") } $Response = Invoke-WebRequest @Params ConvertFrom-ByteArray -Data $Response.Content -Encoding ASCII } |