BcContainerHelper

6.1.11-preview1992204

ContainerHandling/Flush-ContainerHelperCache.ps1

                                <# 

 .Synopsis

  Flush Caches used in ContainerHelper

 .Description

  Extract all files from a Container Image necessary to start a generic container with these files

 .Parameter cache

  Specify which cache you want to flush (default is all)

  - calSourceCache is the C/AL Source Cache

  - alSourceCache is the AL Source Cache

  - filesCache is the files extracted from other images

  - applicationCache are the test applications runtime cache (15.x containers)

  - bakFolderCache are version specific backup sets

  - bcartifacts are artifacts downloaded for spinning up containers

  - bcnuget are nuget packages downloaded to nuget cache

  - sandboxartifacts are artifacts downloaded for spinning up containers

  - images are images built on artifacts using New-BcImage or New-BcContainer

  - compilerFolders are folders used for Dockerless builds

  - exitedContainers are containers which have been stopped

  - all is all of the above (except for exited Containers)

 .Parameter keepDays

  When specifying a value in keepDays, the function will try to keep cached information, which has been used during the last keepDays days. Default is 0 - to flush all cache.

 .Example

  Flush-ContainerHelperCache -cache calSourceCache

#>

function Flush-ContainerHelperCache {

    [CmdletBinding()]

    Param (

        [string] $cache = 'all',

        [int] $keepDays = 0

    )

$telemetryScope = InitTelemetryScope -name $MyInvocation.InvocationName -parameterValues $PSBoundParameters -includeParameters @()

try {

    $flushMutexName = "FlushContainerHelperCache"

    $flushMutex = New-Object System.Threading.Mutex($false, $flushMutexName)

    try {

        try {

            if (!$flushMutex.WaitOne(1000)) {

                Write-Host "Waiting for other process flushing cache"

                $flushMutex.WaitOne() | Out-Null

                Write-Host "Other process completed flushing"

            }

        }

        catch [System.Threading.AbandonedMutexException] {

           Write-Host "Other process terminated abnormally"

        }

        $artifactsCacheFolder = $bcContainerHelperConfig.bcartifactsCacheFolder

        $caches = $cache.ToLowerInvariant().Split(',')

        if ($caches.Contains('exitedcontainers')) {

            docker container ls --format "{{.ID}}:{{.Names}}" --no-trunc -a --filter "status=exited" | ForEach-Object {

                $containerID = $_.Split(':')[0]

                $containerName = $_.Split(':')[1]

                $inspect = docker inspect $containerID | ConvertFrom-Json

                try {

                    if ($inspect.state.FinishedAt -is [datetime]) {

                        $finishedAt = $inspect.state.FinishedAt

                    }

                    else {

                        $finishedAt = [DateTime]::Parse($inspect.state.FinishedAt)

                    }

                    $exitedDaysAgo = [DateTime]::Now.Subtract($finishedAt).Days

                    if ($exitedDaysAgo -ge $keepDays) {

                        if (($inspect.Config.Labels.psobject.Properties.Match('maintainer').Count -ne 0 -and $inspect.Config.Labels.maintainer -eq "Dynamics SMB")) {

                            if ($caches.Contains('algocontainersonly')) {

                                if ($inspect.Config.Labels.psobject.Properties.Match('creator').Count -ne 0 -and $inspect.Config.Labels.creator -eq "AL-Go") {

                                    Write-Host "Removing AL-Go container $containerName"

                                    docker rm $containerID -f

                                } 

                                else {

                                    Write-Host "Container $containerName (exited $exitedDaysAgo day$(if($exitedDaysAgo -ne 1){'s'}) ago) is recognized as a Business Central Container, but was not created by AL-Go - not removing"

                                }

                            } 

                            else {

                                Write-Host "Removing container $containerName"

                                docker rm $containerID -f

                            }   

                        }

                        else {

                            Write-Host "Container $containerName (exited $exitedDaysAgo day$(if($exitedDaysAgo -ne 1){'s'}) ago) is not recognized as a Business Central Container - not removing"

                        }

                    }

                    else {

                        Write-Host "Keeping container $containerName (exited $exitedDaysAgo day$(if($exitedDaysAgo -ne 1){'s'}) ago) - removing after $keepDays day$(if($keepDays -ne 1){'s'})"

                    }

                }

                catch {

                    # ignore any errors

                }

            }

        }

        $folders = @()

        if ($caches.Contains('all') -or $caches.Contains('calSourceCache')) {

            $folders += @("extensions\original-*-??","extensions\original-*-??-newsyntax")

        }

        if ($caches.Contains('all') -or $caches.Contains('filesCache')) {

            $folders += @("*-??-files")

        }

        if ($caches.Contains('all') -or $caches.Contains('bcartifacts') -or $caches.Contains('sandboxartifacts')) {

            $subfolder = "*"

            if (!($caches.Contains('all') -or $caches.Contains('bcartifacts'))) {

                $subfolder = "sandbox"

            }

            if (Test-Path $artifactsCacheFolder) {

                if ($keepDays) {

                    $removeBefore = [DateTime]::Now.Subtract([timespan]::FromDays($keepDays))

                    Get-ChildItem -Path $artifactsCacheFolder | Where-Object { $_.PSIsContainer -and $_.Name -like $subfolder } | ForEach-Object {

                        $level1 = $_.FullName

                        Get-ChildItem -Path $level1 | ?{ $_.PSIsContainer } | ForEach-Object {

                            $level2 = $_.FullName

                            Get-ChildItem -Path $level2 | ?{ $_.PSIsContainer } | ForEach-Object {

                                $level3 = $_.FullName

                                $lastUsedFileName = Join-Path $level3 "LastUsed"

                                if (Test-Path $lastUsedFileName) {

                                    $lastUsedFile = Get-Item $lastUsedFileName

                                    if ($lastUsedFile.LastWriteTime -lt $removeBefore) {

                                        Write-Host "Removing $level3"

                                        Remove-Item $level3 -Recurse -Force

                                    }

                                }

                            }

                            if (-not (Get-ChildItem -Path $level2)) {

                                Remove-Item $level2 -Force

                            }

                        }

                        if (-not (Get-ChildItem -Path $level1)) {

                            Remove-Item $level1 -Force

                        }

                    }

                }

                else {

                    Get-ChildItem -Path $artifactsCacheFolder | ?{ $_.PSIsContainer -and $_.Name -like $subfolder } | ForEach-Object {

                        Write-Host "Removing Cache $($_.FullName)"

                        [System.IO.Directory]::Delete($_.FullName, $true)

                    }

                }

            }

        }

        if ($caches.Contains('all') -or $caches.Contains('alSourceCache')) {

            $folders += @("extensions\original-*-??-al")

        }

        if ($caches.Contains('all') -or $caches.Contains('applicationCache')) {

            $folders += @("extensions\applications-*-??","extensions\sandbox-applications-*-??","extensions\onprem-applications-*-??")

        }

        if ($caches.Contains('all') -or $caches.Contains('compilerFolders')) {

            # Remove CompilerFolders created 24h ago or earlier

            Push-Location -path $bcContainerHelperConfig.hostHelperFolder

            $compilerPath = Join-Path $bcContainerHelperConfig.hostHelperFolder 'compiler'

            if (Test-Path $compilerPath) {

                $removeBefore = [DateTime]::UtcNow.AddDays(-$keepDays)

                $folders += @(Get-ChildItem -Path $compilerPath | Where-Object { $_.PSIsContainer } | Where-Object { $_.CreationTimeUtc -lt $removeBefore } | ForEach-Object { Resolve-Path $_.FullName -Relative })

            }

            Pop-Location

        }

        if ($caches.Contains('all') -or $caches.Contains('bakFolderCache')) {

            $folders += @("sandbox-*-bakfolders","onprem-*-bakfolders")

        }

        $folders | ForEach-Object {

            $folder = Join-Path $bcContainerHelperConfig.hostHelperFolder $_

            Get-Item $folder -ErrorAction SilentlyContinue | Where-Object { $_.PSIsContainer } | ForEach-Object {

                Write-Host "Removing Cache $($_.FullName)"

                [System.IO.Directory]::Delete($_.FullName, $true)

            }

        }

        if (($caches.Contains('all') -or $caches.Contains('bcnuget')) -and ($bcContainerHelperConfig.BcNuGetCacheFolder) -and (Test-Path $bcContainerHelperConfig.BcNuGetCacheFolder)) {

            Get-ChildItem -Path $bcContainerHelperConfig.BcNuGetCacheFolder | Where-Object { $_.PSIsContainer } | ForEach-Object {

                Get-ChildItem -Path $_.FullName | ForEach-Object {

                    $lastWrite = $_.LastWriteTime

                    if ($keepDays -eq 0 -or $lastWrite -lt (Get-Date).AddDays(-$keepDays)) {

                        Write-Host "Remove $($_.FullName.SubString($bcContainerHelperConfig.BcNuGetCacheFolder.Length+1))"

                        Remove-Item -Path $_.FullName -Recurse -Force

                    }

                }

            }

        }

        if ($caches.Contains('all') -or $caches.Contains('images')) {

            $bestGenericImageName = Get-BestGenericImageName

            $allImages = @(docker images --no-trunc --format "{{.Repository}}:{{.Tag}}|{{.ID}}")

            $bestGenericImage = $allImages | Where-Object { $_.Split('|')[0] -eq $bestGenericImageName }

            if ($bestGenericImage) {

                $bestGenericImageId = $bestGenericImage.Split('|')[1]

                $bestGenericImageInspect = docker inspect $bestGenericImageID | ConvertFrom-Json

            }

            $usedImages = docker ps -a --no-trunc --format '{{.Image}}'

            $allImages | ForEach-Object {

                $imageName = $_.Split('|')[0]

                if ($usedImages -notcontains $imageName) {

                    $imageID = $_.Split('|')[1]

                    $inspect = docker inspect $imageID | ConvertFrom-Json

                    $artifactUrl = $inspect.config.Env | Where-Object { $_ -like "artifactUrl=*" }

                    if ($artifactUrl) {

                        $artifactUrl = $artifactUrl.Split('?')[0]

                        "artifactUrl=https://bcartifacts*.net/",

                        "artifactUrl=https://bcinsider*.net/",

                        "artifactUrl=https://bcprivate*.net/",

                        "artifactUrl=https://bcpublicpreview*.net/" | ForEach-Object {

                            if ($artifactUrl -like "$($_)*") {

                                $cacheFolder = Join-Path $artifactsCacheFolder $artifactUrl.Substring($artifactUrl.IndexOf('/',$_.Length)+1)

                                if (-not (Test-Path $cacheFolder)) {

                                    Write-Host "$imageName was built on artifacts which was removed from the cache, removing image"

                                    if (-not (DockerDo -command rmi -parameters @("--force") -imageName $imageID -ErrorAction SilentlyContinue)) {

                                        Write-Host "WARNING: Unable to remove image"

                                    }

                                }

                            }

                        }

                    }

                    elseif ($bestGenericImage) {

                        try {

                            if ($inspect.config.Labels.maintainer -eq "Dynamics SMB" -and 

                                $inspect.Config.Labels.tag -ne "" -and 

                                $inspect.Config.Labels.osversion -ne $bestGenericImageInspect.Config.Labels.osversion) {

                                Write-Host "$imageName is a generic image for an old version of your OS, removing image"

                                if (-not (DockerDo -command rmi -parameters @("--force") -imageName $imageID -ErrorAction SilentlyContinue)) {

                                    Write-Host "WARNING: Unable to remove image"

                                }

                            }

                        } catch {}

                    }

                }

            }

            if ($keepDays -eq 0) {

                Write-Host "Running Docker image prune"

                docker image prune -f > $null

            }

            else {

                $h = 24*$keepDays

                Write-Host "Running Docker image prune --filter ""until=$($h)h"""

                docker image prune -f --filter "until=$($h)h" > $null

            }

            Write-Host "Completed"

        }

    }

    finally {

        $flushMutex.ReleaseMutex()

    }

}

catch {

    TrackException -telemetryScope $telemetryScope -errorRecord $_

    throw

}

finally {

    TrackTrace -telemetryScope $telemetryScope

}

}

Export-ModuleMember -Function Flush-ContainerHelperCache

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