TerraformSetup.psm1
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function Get-TerraformVersion { <# .SYNOPSIS Get all Terraform versions .DESCRIPTION Get all Terraform versions from Github API .EXAMPLE Get-TerraformVersion #> [CmdletBinding()] param () $allTerraformRelease = Invoke-RestMethod -Uri 'https://api.github.com/repos/hashicorp/terraform/releases' $allTerraformReleaseVersions = $allTerraformRelease.tag_name | ForEach-Object { $_.TrimStart('v') } $allTerraformReleaseVersions } function Install-Terraform { <# .SYNOPSIS Install Terraform for Windows .DESCRIPTION Automatically downloads Terraform binary agent and installs it for Windows x64 OS under System32 .EXAMPLE Install-Terraform -TerraformVersion 'latest' .PARAMETER TerraformVersion Terraform version to be installed. If you don't specify this or set it to 'latest' module will get latest release from GitHub API .PARAMETER Force Force installation even you have previous terraform.exe installed #> [CmdletBinding()] param ( [Parameter(ValueFromPipeline)] [ValidatePattern('(^(\d+\.)?(\d+\.)?(\*|\d+)$)')] [string]$TerraformVersion, [switch]$Force ) # get latest release from GitHub and download it if user don't provide the version if (!$TerraformVersion) { Write-Debug "Terraform version not set by user. Setting it to latest version found from GitHub API" $githubLatestAPIURL = 'https://api.github.com/repos/hashicorp/terraform/releases/latest' $TerraformVersion = (Invoke-RestMethod -Uri $githubLatestAPIURL | Select-Object -ExpandProperty 'tag_name').TrimStart('v') Write-Output "Latest Terraform version found from GitHub API: $TerraformVersion" } $tfInstallPath = Join-Path $env:SystemRoot 'System32' $tfExePath = Join-Path $tfInstallPath 'terraform.exe' $tfZipFileName = "terraform_$($TerraformVersion)_windows_amd64.zip" $tfZipFilePath = (Join-Path $tfInstallPath $tfZipFileName) $tfURL = "https://releases.hashicorp.com/terraform/$($TerraformVersion)/$tfZipFileName" if ((Test-Path $tfExePath) -and !$Force) { Write-Warning "Terraform is already installed to System32. Use -Force switch to bypass the check or manually remove terraform.exe. Version:" terraform -version break } if (!(Test-Path $tfZipFilePath) -or $Force) { try { # download terraform.zip from hashicorp.com Write-Debug "Downloading Terraform version $TerraformVersion from $tfURL" Invoke-WebRequest $tfURL -OutFile $tfZipFilePath -ErrorAction Stop } catch { $allTerraformRelease = Invoke-RestMethod -Uri 'https://api.github.com/repos/hashicorp/terraform/releases' $allTerraformReleaseVersions = $allTerraformRelease.tag_name | ForEach-Object { $_.TrimStart('v') } Write-Warning "$TerraformVersion is an invalid Terraform version. Please use one below:" $allTerraformReleaseVersions break } } # unzip terraform.zip -> C:\Windows\System32\terraform.exe Expand-Archive -Path $tfZipFilePath -DestinationPath $tfInstallPath -Force # Remove terraform.zip Remove-Item $tfZipFilePath -ErrorAction SilentlyContinue Write-Output "Terraform successfully installed. Version:" # test terraform terraform -version } function New-TerraformFolders { <# .SYNOPSIS Create Terraform module and template folders .DESCRIPTION Create a folder structure for all your Terraform modules and templates .EXAMPLE Install-Terraform -TerraformWorkPath 'C:\Terraform' .PARAMETER TerraformWorkPath Root path for your Terraform modules and templates. Default: C:\Terraform #> [CmdletBinding()] param ( [Parameter()] [string]$TerraformWorkPath = 'C:\Terraform' ) $tfTemplateRootPath = Join-Path $TerraformWorkPath 'templates' $tfWindowsTemplatePath = Join-Path $tfTemplateRootPath 'windows' $tfLinuxTemplatePath = Join-Path $tfTemplateRootPath 'linux' $tfModulePath = Join-Path $TerraformWorkPath 'modules' # create terraform module and template folders under C:\Terraform $tfWindowsTemplatePath, $tfLinuxTemplatePath, $tfModulePath | ForEach-Object { New-Item $_ -ItemType Directory -ErrorAction SilentlyContinue } } |