cDockerDSC.psm1
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enum Ensure { Absent Present } [DscResource()] class DockerDSC { [DscProperty(Key)] [String]$DockerVersion [DscProperty(NotConfigurable)] [String]$InstallState [DscProperty(Mandatory = $false)] [String]$Ensure = 'Present' [DscProperty(NotConfigurable)] [String]$DockerName # Gets the resource's current state. [DockerDSC] Get() { try { $docker = docker version -f '{{json .}}' | ConvertFrom-Json if ($docker) { $this.InstallState = 'Present' $this.DockerVersion = $docker.Server.Version $this.DockerName = $docker.Server.Platform.Name } } catch [System.Management.Automation.CommandNotFoundException] { $this.InstallState = 'Absent' } return $this } # Sets the desired state of the resource. [void] Set() { Write-Verbose "Desired State is: $($this.Ensure)" [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12 switch ($this.Ensure) { "Absent" { Uninstall-Package -Name docker -ProviderName DockerMsftProvider -Force -ForceBootstrap } "Present" { Install-Package -Name docker -ProviderName DockerMsftProvider -Force -RequiredVersion $this.DockerVersion -ForceBootstrap } } } # Tests if the resource is in the desired state. [bool] Test() { foreach ($level in "Machine", "User") { [Environment]::GetEnvironmentVariables($level) } $dockerInfo = $this.Get() if ($dockerInfo.InstallState -eq $this.Ensure) { return $true } else { return $false } } } |