Shows all Kubernetes deployments, statefulset and daemonset configured requests/limits for CPU and memory

get-cluster-requests-limits.ps1

$ErrorActionPreference = "Stop"

Write-Host "Daemonsets:`n"

$daemonsets = kubectl get daemonsets --all-namespaces --output json | ConvertFrom-Json
$daemonsets.items | Sort-Object { $_.metadata.name } | ForEach-Object {
    $daemonset = $_
    $daemonset.spec.template.spec.containers | Sort-Object Name | ForEach-Object {
        Write-Host "$($daemonset.metadata.name) / $($_.Name), memory request: $($_.Resources.Requests.Memory ?? "N/A"), memory limit: $($_.Resources.Limits.Memory ?? "N/A"), cpu request: $($_.Resources.Requests.CPU ?? "N/A"), cpu limit: $($_.Resources.Limits.CPU ?? "N/A")"
    }
}

Write-Host "`n`nStatefulsets:`n"

$statefulsets = kubectl get statefulsets --all-namespaces --output json | ConvertFrom-Json
$statefulsets.items | Sort-Object { $_.metadata.name } | ForEach-Object {
    $statefulset = $_
    $statefulset.spec.template.spec.containers | Sort-Object Name | ForEach-Object {
        Write-Host "$($statefulset.metadata.name) / $($_.Name), memory request: $($_.Resources.Requests.Memory ?? "N/A"), memory limit: $($_.Resources.Limits.Memory ?? "N/A"), cpu request: $($_.Resources.Requests.CPU ?? "N/A"), cpu limit: $($_.Resources.Limits.CPU ?? "N/A")"
    }
}

Write-Host "`n`nDeployments:`n"

$deployments = kubectl get deployments --all-namespaces --output json | ConvertFrom-Json
$deployments.items | Sort-Object { $_.metadata.name } | ForEach-Object {
    $deployment = $_
    $deployment.spec.template.spec.containers | Sort-Object Name | ForEach-Object {
        Write-Host "$($deployment.metadata.name) / $($_.Name), memory request: $($_.Resources.Requests.Memory ?? "N/A"), memory limit: $($_.Resources.Limits.Memory ?? "N/A"), cpu request: $($_.Resources.Requests.CPU ?? "N/A"), cpu limit: $($_.Resources.Limits.CPU ?? "N/A")"
    }
}