PowerShell and Bash Examples to Remove Stale Chef Nodes

remove-nodes.ps1

$date1 = Get-Date -Date "01/01/1970"
$date2 = (Get-Date).AddDays(-3)
$time = (New-TimeSpan -Start $date1 -End $date2).TotalSeconds

$search = @"
knife search node "ohai_time:[* TO $time]" -i
"@

$results = Invoke-Expression $search 2> $null

foreach ($node in $results) {
knife node delete $node
knife client delete $node
}

removenodes.sh

for node in $(knife search node "ohai_time:[* TO $(date -v-7d +%s)]" -i); do
knife node delete $node
knife client delete $node
done