Octopus Deploy script to shift a range of projects to the right (dev to staging) as a set

PromoteAll.ps1

$octo = Get-OctopusTools

Write-Heading 'Projects'

function GetProjectsInGroup([string]$projectGroupName, [string]$ignoreProjectNames) {
    $projectGroup = Invoke-OctopusApi '/api/projectgroups/all' | Where-Object { $_.Name -eq $projectGroupName }
    if ($null -eq $projectGroup) {
        Write-Fatal "Project $projectGroupName not found"
    }

    Write-Host "Project Group: $($projectGroup.Name)"
    Write-Verbose "`t$($this.BaseUrl)$($projectGroup.Links.Self)"

    $comparisonArray = $ignoreProjectNames.Split("`n") | % Trim
    Write-Host "Skipping: $comparisonArray"

    $projects = Invoke-OctopusApi "/api/projects/all" | Where-Object { $_.ProjectGroupId -eq $projectGroup.Id -and $_.Name -notin $comparisonArray }
    $projects | ForEach-Object {
        Write-Host "- $($_.Name)"
    }
    
    $projects | Write-Output
}

$projects = GetProjectsInGroup $ProjectGroupName $IgnoreProjects

$projects | ForEach-Object {
    # Release Promotion
    # https://octopus.com/docs/api-and-integration/octo.exe-command-line/promoting-releases
    
    $projectName = $_.Name
    Write-Heading "$projectName"
    Write-Host "Promoting '$projectName' from $PromoteFrom to $PromoteTo"
    & $octo promote-release --project=$projectName --from=$PromoteFrom --to=$PromoteTo --tenant=* --server=$OctopusUrl --apiKey=$OctopusApiKey --updateVariables
}