Move stress testing scripts to eng/common (#2686)

Co-authored-by: Ben Broderick Phillips <bebroder@microsoft.com>

eng/common/scripts/stress-testing/deploy-stress-tests.ps1

@@ -0,0 +1,174 @@
+[CmdletBinding(DefaultParameterSetName = 'Default')]
+param(
+    [string]$SearchDirectory,
+    [hashtable]$Filters,
+    [string]$Environment,
+    [string]$Repository,
+    [switch]$PushImages,
+    [string]$ClusterGroup,
+    [string]$DeployId,
+
+    [Parameter(ParameterSetName = 'DoLogin', Mandatory = $true)]
+    [switch]$Login,
+
+    [Parameter(ParameterSetName = 'DoLogin')]
+    [string]$Subscription
+)
+
+$ErrorActionPreference = 'Stop'
+
+. $PSScriptRoot/find-all-stress-packages.ps1
+$FailedCommands = New-Object Collections.Generic.List[hashtable]
+
+if (!(Get-Module powershell-yaml)) {
+    Install-Module -Name powershell-yaml -RequiredVersion 0.4.1 -Force -Scope CurrentUser
+}
+
+# Powershell does not (at time of writing) treat exit codes from external binaries
+# as cause for stopping execution, so do this via a wrapper function.
+# See https://github.com/PowerShell/PowerShell-RFC/pull/277
+function Run() {
+    Write-Host "`n==> $args`n" -ForegroundColor Green
+    $command, $arguments = $args
+    & $command $arguments
+    if ($LASTEXITCODE) {
+        Write-Error "Command '$args' failed with code: $LASTEXITCODE" -ErrorAction 'Continue'
+        $FailedCommands.Add(@{ command = "$args"; code = $LASTEXITCODE })
+    }
+}
+
+function RunOrExitOnFailure() {
+    run @args
+    if ($LASTEXITCODE) {
+        exit $LASTEXITCODE
+    }
+}
+
+function Login([string]$subscription, [string]$clusterGroup, [boolean]$pushImages) {
+    Write-Host "Logging in to subscription, cluster and container registry"
+    az account show *> $null
+    if ($LASTEXITCODE) {
+        RunOrExitOnFailure az login --allow-no-subscriptions
+    }
+
+    $clusterName = (az aks list -g $clusterGroup -o json| ConvertFrom-Json).name
+
+    RunOrExitOnFailure az aks get-credentials `
+        -n "$clusterName" `
+        -g "$clusterGroup" `
+        --subscription "$subscription" `
+        --overwrite-existing
+
+    if ($pushImages) {
+        $registry = (az acr list -g $clusterGroup -o json | ConvertFrom-Json).name
+        RunOrExitOnFailure az acr login -n $registry
+    }
+}
+
+function DeployStressTests(
+    [string]$searchDirectory = '.',
+    [hashtable]$filters = @{},
+    [string]$environment = 'test',
+    [string]$repository = 'images',
+    [boolean]$pushImages = $false,
+    [string]$clusterGroup = 'rg-stress-test-cluster-',
+    [string]$deployId = 'local',
+    [string]$subscription = 'Azure SDK Test Resources'
+) {
+    if ($PSCmdlet.ParameterSetName -eq 'DoLogin') {
+        Login $subscription $clusterGroup $pushImages
+    }
+
+    RunOrExitOnFailure helm repo add stress-test-charts https://stresstestcharts.blob.core.windows.net/helm/
+    Run helm repo update
+    if ($LASTEXITCODE) { return $LASTEXITCODE }
+
+    $pkgs = FindStressPackages $searchDirectory $filters
+    Write-Host "" "Found $($pkgs.Length) stress test packages:"
+    Write-Host $pkgs.Directory ""
+    foreach ($pkg in $pkgs) {
+        Write-Host "Deploying stress test at '$($pkg.Directory)'"
+        DeployStressPackage $pkg $deployId $environment $repository $pushImages
+    }
+
+    Write-Host "Releases deployed by $deployId"
+    Run helm list --all-namespaces -l deployId=$deployId
+
+    if ($FailedCommands) {
+        Write-Warning "The following commands failed:"
+        foreach ($cmd in $FailedCommands) {
+            Write-Error "'$($cmd.command)' failed with code $($cmd.code)" -ErrorAction 'Continue'
+        }
+        exit 1
+    }
+}
+
+function DeployStressPackage(
+    [object]$pkg,
+    [string]$deployId,
+    [string]$environment,
+    [string]$repository,
+    [boolean]$pushImages
+) {
+    $registry = (az acr list -g $clusterGroup -o json | ConvertFrom-Json).name
+    if (!$registry) {
+        Write-Host "Could not find container registry in resource group $clusterGroup"
+        exit 1
+    }
+
+    if ($pushImages) {
+        Run helm dependency update $pkg.Directory
+        if ($LASTEXITCODE) { return $LASTEXITCODE }
+
+        $dockerFiles = Get-ChildItem "$($pkg.Directory)/Dockerfile*"
+        foreach ($dockerFile in $dockerFiles) {
+            # Infer docker image name from parent directory name, if file is named `Dockerfile`
+            # or from suffix, is file is named like `Dockerfile.myimage` (for multiple dockerfiles).
+            $prefix, $imageName = $dockerFile.Name.Split(".")
+            if (!$imageName) {
+                $imageName = $dockerFile.Directory.Name
+            }
+            $imageTag = "${registry}.azurecr.io/$($repository.ToLower())/$($imageName):$deployId"
+            Write-Host "Building and pushing stress test docker image '$imageTag'"
+            Run docker build -t $imageTag -f $dockerFile.FullName $dockerFile.DirectoryName
+            if ($LASTEXITCODE) { return $LASTEXITCODE }
+            Run docker push $imageTag
+            if ($LASTEXITCODE) {
+                if ($PSCmdlet.ParameterSetName -ne 'DoLogin') {
+                    Write-Warning "If docker push is failing due to authentication issues, try calling this script with '-Login'"
+                }
+                return $LASTEXITCODE
+            }
+        }
+    }
+
+    Write-Host "Creating namespace $($pkg.Namespace) if it does not exist..."
+    kubectl create namespace $pkg.Namespace --dry-run=client -o yaml | kubectl apply -f -
+
+    Write-Host "Installing or upgrading stress test $($pkg.ReleaseName) from $($pkg.Directory)"
+    Run helm upgrade $pkg.ReleaseName $pkg.Directory `
+        -n $pkg.Namespace `
+        --install `
+        --set repository=$registry.azurecr.io/$repository `
+        --set tag=$deployId `
+        --set stress-test-addons.env=$environment
+    if ($LASTEXITCODE) {
+        # Issues like 'UPGRADE FAILED: another operation (install/upgrade/rollback) is in progress'
+        # can be the result of cancelled `upgrade` operations (e.g. ctrl-c).
+        # See https://github.com/helm/helm/issues/4558
+        Write-Warning "The issue may be fixable by first running 'helm rollback -n $($pkg.Namespace) $($pkg.ReleaseName)'"
+        return $LASTEXITCODE
+    }
+    
+    # Helm 3 stores release information in kubernetes secrets. The only way to add extra labels around
+    # specific releases (thereby enabling filtering on `helm list`) is to label the underlying secret resources.
+    # There is not currently support for setting these labels via the helm cli.
+    $helmReleaseConfig = kubectl get secrets `
+        -n $pkg.Namespace `
+        -l status=deployed,name=$($pkg.ReleaseName) `
+        -o jsonpath='{.items[0].metadata.name}'
+
+    Run kubectl label secret -n $pkg.Namespace --overwrite $helmReleaseConfig deployId=$deployId
+}
+
+DeployStressTests @PSBoundParameters

eng/common/scripts/stress-testing/find-all-stress-packages.ps1

@@ -0,0 +1,53 @@
+param(
+    [string]$searchDirectory = '.',
+    [hashtable]$filters = @{}
+)
+
+class StressTestPackageInfo {
+    [string]$Namespace
+    [string]$Directory
+    [string]$ReleaseName
+}
+
+function FindStressPackages([string]$directory, [hashtable]$filters = @{}) {
+    # Bare minimum filter for stress tests
+    $filters['stressTest'] = 'true'
+
+    $packages = @()
+    $chartFiles = Get-ChildItem -Recurse -Filter 'Chart.yaml' $directory 
+    foreach ($chartFile in $chartFiles) {
+        $chart = ParseChart $chartFile
+        if (matchesAnnotations $chart $filters) {
+            $packages += NewStressTestPackageInfo $chart $chartFile
+        }
+    }
+
+    return $packages
+}
+
+function ParseChart([string]$chartFile) {
+    return ConvertFrom-Yaml (Get-Content -Raw $chartFile)
+}
+
+function MatchesAnnotations([hashtable]$chart, [hashtable]$filters) {
+    foreach ($filter in $filters.GetEnumerator()) {
+        if (!$chart.annotations -or $chart.annotations[$filter.Key] -ne $filter.Value) {
+            return $false
+        }
+    }
+
+    return $true
+}
+
+function NewStressTestPackageInfo([hashtable]$chart, [System.IO.FileInfo]$chartFile) {
+    return [StressTestPackageInfo]@{
+        Namespace = $chart.annotations.namespace
+        Directory = $chartFile.DirectoryName
+        ReleaseName = $chart.name
+    }
+}
+
+# Don't call functions when the script is being dot sourced
+if ($MyInvocation.InvocationName -ne ".") {
+    FindStressPackages $searchDirectory $filters
+}