private/Write-PodLog.ps1
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function Write-PodLog { param ( [Parameter(Mandatory)] [string] $PodName, [Parameter(Mandatory)] [string] $Prefix, [switch] $HasInit, [string] $Namespace = "default", [string] $Since, [ValidateSet("error", "warning", "ok","normal")] [string] $LogLevel = "ok", [string] $LogFileFolder ) $extraLogParams = @() $logFilename = $null $msg = "Logs for $prefix $PodName" if ($Since) { $msg += " since ${Since}" $extraLogParams += "--since=$logSeconds" } if ($HasInit) { $extraLogParams = "--prefix", "--all-containers" } Write-Header $msg -LogLevel $LogLevel $tempFile = Get-TempLogFile if ($LogFileFolder) { Start-Transcript -Path $tempFile -UseMinimalHeader | Out-Null } kubectl logs --namespace $Namespace $PodName $extraLogParams 2>&1 | Where-Object { $_ -NotMatch 'Error.*: (PodInitializing|ContainerCreating)' } | Write-Plain if ($LogFileFolder) { Stop-Transcript | Out-Null $logFilename = Join-Path $LogFileFolder "$PodName.log" $end = $false # filter out the transcript header and footer Get-Content $tempFile | Select-Object -Skip 4 | ForEach-Object { if ($end -or $_ -eq '**********************') { $end = $true } else { $_ } } | Set-Content $logFilename Remove-Item $tempFile -ErrorAction SilentlyContinue } $getLogsExitCode = $LASTEXITCODE Write-Footer "End logs for $prefix $PodName" if ($getLogsExitCode -ne 0) { $msg = "Error getting logs for pod $PodName (exit = $getLogsExitCode), checking status" # TODO if you have multiple containers, this returns multiple chunks of json, but not in an array Write-Verbose "kubectl get pod $PodName -o jsonpath='{.status.containerStatuses.*.state}'" $state = ,(kubectl get pod $PodName -o jsonpath="{.status.containerStatuses.*.state}" | ConvertFrom-Json -Depth 5) foreach ($s in $state) { # can have running, waiting, or terminated properties if ($s -and (Get-Member -InputObject $s -Name waiting) -and (Get-Member -InputObject $s.waiting -Name reason)) { if ($msg) { Write-Header $msg -LogLevel warning; $msg = $null } # waiting can have reason, message if ($s.waiting.reason -eq 'ContainerCreating') { Write-Status "Pod is in ContainerCreating" } else { Write-Status "Pod is waiting" -LogLevel error Write-Status ($s.waiting | Out-String -Width 500) -LogLevel error } } elseif ($s -and (Get-Member -InputObject $s -Name terminated) -and (Get-Member -InputObject $s.terminated -Name reason)) { # terminated can have containerID, exitCode, finishedAt, reason, message, signal, startedAt if ($msg) { Write-Header $msg -LogLevel error; $msg = $null } Write-Status "Pod was terminated" -LogLevel error Write-Status ($s.terminated | Out-String -Width 500) -LogLevel error } else { if ($msg) { Write-Header $msg -LogLevel error; $msg = $null } Write-Warning "Didn't get known state:" Write-Warning ($s | Out-String) } } Write-Footer } return $logFilename } |