Public/Build-LMDataModel.ps1


<#
.SYNOPSIS
Generates a data model for ingest by PushMetrics

.DESCRIPTION
Using a sample device or list of Datasources, will generate a model that can be replayed for simulated device activity by Submit-LMDataModel

.PARAMETER DatasourceNames
An Array of Datasources to model, only used if not modeling a specific device.

.PARAMETER IncludeModuleGraphs
Include graph configuration data in generated model.

.PARAMETER IncludeAlertThresholds
Include alert threshold configuration data in generated model.

.PARAMETER GenerateInstances
If generating a model based on a datasource, enable instance generation

.PARAMETER InstanceCount
How many instances to generate when using GenerateInstances command, defaults to 1 if not set

.PARAMETER SimulationType
Simulation type to generate for the model. Currently not used will be worked on in the future

.PARAMETER DeviceHostName
HostName of the mock device that is generated by the model.

.PARAMETER DeviceDisplayName
DisplayName of the mock device that is generated by the model.

.PARAMETER ModelDeviceHostName
HostName of the source device that will be used as a reference for the generated model.

.PARAMETER IncludeModelDeviceProperties
Include reference device properties in generated model, includes instance level properties as well.

.PARAMETER IncludeModelDeviceData
Include a sample dataset from the model device for the previous 24 hours, this will be used to simulate data generation when submitting the model for ingest.

.EXAMPLE
Build-LMDataModel -ModelDeviceHostName "192.168.1.13" -IncludeAlertThresholds -IncludeModuleGraphs -DeviceHostName 1.1.1.17 -DeviceDisplayName LocalHost7

.INPUTS
None. You cannot pipe objects to this command.

.LINK
Module repo: https://github.com/stevevillardi/Logic.Monitor.SE

.LINK
PSGallery: https://www.powershellgallery.com/packages/Logic.Monitor.SE
#>

Function Build-LMDataModel {
    [CmdletBinding(DefaultParameterSetName="ModelDatasources")]
    [OutputType([System.Collections.Generic.List[object]])]
    Param(
        [Parameter(Mandatory,ParameterSetName="ModelDatasources")]
        [System.Collections.Generic.List[object]]$DatasourceNames,

        [Switch]$IncludeModuleGraphs,

        [Switch]$IncludeAlertThresholds,

        [Parameter(ParameterSetName = 'GenerateInstances')]
        [Parameter(Mandatory,ParameterSetName="ModelDatasources")]
        [Switch]$GenerateInstances,

        [Parameter(ParameterSetName = 'GenerateInstances')]
        [Parameter(Mandatory,ParameterSetName="ModelDatasources")]
        [Int]$InstanceCount = 1,

        [ValidateSet("8to5","random","replication","replay_model")]
        [String]$SimulationType="random",

        [Parameter(Mandatory)]
        [String]$DeviceHostName,

        [String]$DeviceDisplayName = $DeviceHostName,

        [Parameter(Mandatory,ParameterSetName = 'ModelDevice')]
        [String]$ModelDeviceHostName,

        [Parameter(ParameterSetName = 'ModelDevice')]
        [Switch]$IncludeModelDeviceProperties,

        [Parameter(ParameterSetName = 'ModelDevice')]
        [String]$ModelDeviceInstanceCount = 24,

        [Parameter(ParameterSetName = 'ModelDevice')]
        [Switch]$IncludeModelDeviceData

    )
    #If we have a model deivce make sure we can grab it from the connected portal fist
    If($ModelDeviceHostName){
        $DatasourceNames = [System.Collections.Generic.List[object]]::New()
        $ModelDevice = Get-LMDevice -Name $ModelDeviceHostName | Select-Object -First 1
        If($ModelDevice){
            Write-Debug "Located model device, using device ($ModelDeviceHostName) as model candidate.(ID: $($ModelDevice.id))"
            $ModelDeviceDatasources = Get-LMDeviceDatasourceList -id $ModelDevice.Id | Where-Object {$_.instanceNumber -gt 0}
            $DatasourceNames.AddRange($ModelDeviceDatasources.datasourceName)
        }
        Else{
            Write-Error "Unable to locate provided model device ($ModelDeviceHostName), ensure hostname is correct and try again."
            Return
        }
    }

    #If set to collect model data override simulation type to replay model
    If($IncludeModelDeviceData){$SimulationType = "replay_model"}

    $DataSourceModels = [System.Collections.Generic.List[object]]::New()
    #Loop through each provided DSName to generate models
    Foreach($DatasourceName in $DatasourceNames){
        #Grab specified source DS for DatasourceName so we can model it for PushMetrics
        Write-Debug "Using provided datasource name ($DatasourceName) as model candidate."
        $DatasourceInfo = Get-LMDatasource -Name $DatasourceName
        $Datasource = $DatasourceInfo | Select-Object description,tags,name,displayName,collectInterval,hasMultiInstances,dataPoints
        #Do we have a valid DS to model
        If($Datasource){
            #Extract what we need from the source datasource to use as basis for modeling
            $DatasourceDefenition = $Datasource | Select-Object description,tags,name,displayName,collectInterval,hasMultiInstances
            $Datapoints = $Datasource.datapoints
            $DatasourceGroupName = $Datasource.group

            #Estimate datapoint type for model generation
            $DatapointDefenition = [System.Collections.Generic.List[object]]::New()
            Foreach ($Datapoint in $Datapoints){
                $MetricType = Resolve-MetricType -Datapoint $Datapoint.name
                If($Datapoint.postProcessorMethod -eq "expression"){
                    $Type = "complex"
                    $ComplexDatapointFormula = $Datapoint.postProcessorParam
                }
                Else{
                    $Type = "standard"
                    $ComplexDatapointFormula = "N/A"
                }

                Write-Debug "Detected $Type datapoint $($Datapoint.name) matching metric type: $MetricType"

                $DatapointDefenition.Add([PSCustomObject]@{
                    Name                    = $Datapoint.name
                    MaxValue                = $Datapoint.maxValue
                    MinValue                = $Datapoint.minValue
                    Description             = $Datapoint.description
                    Type                    = $Type
                    ComplexDatapointFormula = $ComplexDatapointFormula
                    AlertForNoData          = If($IncludeAlertThresholds){[Boolean]!$Datapoint.alertForNoData}
                    AlertExpr               = If($IncludeAlertThresholds){$Datapoint.alertExpr}
                    AlertSubject            = If($IncludeAlertThresholds){$Datapoint.alertSubject}
                    AlertBody               = If($IncludeAlertThresholds){$Datapoint.alertBody}
                    MetricType              = $MetricType
                })
            }

            #Get Graph settings we will need to model our PushMetric DS after
            If($IncludeModuleGraphs){
                Write-Debug "Exporting existing datasource overview graph defenition(s) for model export."
                $DatasourceGraphModel  = Get-LMDatasourceGraph -DatasourceName $Datasource.Name | Select-Object -ExcludeProperty id

                Write-Debug "Exporting existing datasource instance graph defenition(s) for model export."
                $DatasourceOverviewGraphModel = Get-LMDatasourceOverviewGraph -DatasourceName $Datasource.Name | Select-Object -ExcludeProperty id
            }

            #Generate Instances if not specified
            $Instances = [System.Collections.Generic.List[object]]::New()
            If($GenerateInstances -and [Boolean]$Datasource.hasMultiInstances){
                Write-Debug "Generating $InstanceCount instance(s) for data model export."
                $Instances.AddRange($(Build-Instance -InstanceCount $InstanceCount -Datasource $DatasourceDefenition))
            }
            ElseIf($GenerateInstances){
                Write-Debug "Datasource $($Datasource.name) not enabled for multiple instances, default instance creation to single instance for data model export."
                $Instances.Add($(Build-Instance -SingleInstance -Datasource $DatasourceDefenition))
            }
            ElseIf($ModelDeviceHostName -and $ModelDeviceDatasources){
                $ModelInstances = Get-LMDeviceDatasourceInstance -DatasourceId $DatasourceInfo.Id -DeviceId $ModelDevice.Id
                Write-Debug "Datasource $($Datasource.name) is being model after device $($ModelDevice.DisplayName) , adding up to $ModelDeviceInstanceCount instances from pool of $(($ModelInstances | Measure-Object).Count) existing instance(s) to data model export."
                If($($ModelInstances | Measure-Object).Count -gt 1){
                    $Instances.AddRange($(Build-Instance -ModelInstance -InstanceList $($ModelInstances | Sort-Object -Property Id | Select-Object -First $ModelDeviceInstanceCount) -Datasource $DatasourceDefenition -IncludeModelData:$IncludeModelDeviceData -ModelDeviceHostName $ModelDeviceHostName))
                }
                Else{
                    $Instances.Add($(Build-Instance -ModelInstance -InstanceList $ModelInstances -Datasource $DatasourceDefenition -IncludeModelData:$IncludeModelDeviceData -ModelDeviceHostName $ModelDeviceHostName))
                }
            }

            #Combine our model info together for export
            $DataSourceModel = [PSCustomObject]@{
                DatasourceName = $DatasourceName
                DatasourceGroupName = $DatasourceGroupName
                Instances = $Instances
                Defenition = $DatasourceDefenition
                Datapoints = $DatapointDefenition
                OverviewGraphs = $DatasourceOverviewGraphModel
                Graphs = $DatasourceGraphModel
            }
        }
        Write-Debug "Exporting data model ($DatasourceName)."
        $DataSourceModels.Add($DataSourceModel)
    }

    $PropertiesHash = @{}
    If($IncludeModelDeviceProperties){
        $Properties = $($ModelDevice.autoProperties + $ModelDevice.customProperties) | Where-Object {$_.name -notmatch ".pass|.community|.key|.authToken||.privToken|.token|.cert|.secret|.user|system.|.id"}
        
        #Remove null props if they exist
        @($Properties.keys) | ForEach-Object { if ([string]::IsNullOrEmpty($Properties[$_])) { $Properties.Remove($_) } }
        
        Foreach ($Prop in $Properties){
            $Prop.name = "autodiscovery." + $Prop.name.replace("auto.","")
            $PropertiesHash.Add($Prop.name,$Prop.value)
        }
    }

    $DeviceModel = [PSCustomObject]@{
        HostName = $DeviceHostName
        DisplayName = $DeviceDisplayName
        Properties = $PropertiesHash
        SimulationType = $SimulationType
        Datasources = $DataSourceModels
    }
    Return $DeviceModel
}

Function Resolve-MetricType {
    Param(
        [Parameter(Mandatory)]
        [Object]$Datapoint
    )

    Switch -Regex ($Datapoint){
        '[Pp]kts|[Bb]ps|[Mm]bps|[Rr]ate|[Tt]ime|[Dd]uration'                {Return "Rate"}
        '[Pp]ercent|[Uu]til'                                                {Return "Percentage"}
        '[Ww]rite|[Rr]ead|[Ii]ops'                                          {Return "IO-Latency"}
        '[Ff]ree|[Uu]sed|[Rr]eserved|[Aa]vailable'                          {Return "SpaceUsage"}
        '[Ss]tatus|[Ss]tate|[Ee]nabled'                                     {Return "Status"}
        default                                                             {Return "Count"}
    }
}

Function Build-Instance {
    Param(
        [Switch]$SingleInstance,

        [Switch]$ModelInstance,

        [System.Collections.Generic.List[object]]$InstanceList,

        [Int]$InstanceCount,

        [Boolean]$IncludeModelData,

        [String]$ModelDeviceHostName,

        $Datasource
    )

    $Instances = [System.Collections.Generic.List[object]]::New()

    #If single instance just return datasource name as instance
    If($SingleInstance){
        Write-Debug "Single instance datasource detected, skipping instance generation usings datasource name as instance"
        $Instances.Add([PSCustomObject]@{
            Name            = ($Datasource.name -replace '[#\\/();=]', '_')
            DisplayName     = ($Datasource.displayName -replace '[#\\/;=]', '_')
            Description     = ""
            Properties        = @{}
            Type            = "SingleInstance"
            Data            = @()
        })

        Return $Instances
    }

    If($ModelInstance){
        #Add generated instance to instance list
        Write-Debug "Instances found for export: ($(($InstanceList[0..9].Name -Join ","))...)"
        Foreach($Instance in $InstanceList){
            $Data = [System.Collections.Generic.List[object]]::New()
            If($IncludeModelData){
                Write-Debug "Extracting last 24 hours of model device data for instance ($($Instance.name))"
                $InstanceData = Get-LMDeviceData -DeviceName $ModelDeviceHostName -DatasourceName $Datasource.name -InstanceName $Instance.name -StartDate (Get-Date).AddHours(-24) -EndDate (Get-Date)
                If($InstanceData){
                    $DataCount = ($InstanceData | Measure-Object).Count
                    Write-Debug "Added $DataCount time series metrics to data model for ($($Instance.name))"
                    $Data.AddRange($InstanceData)
                }
                Else{
                    Write-Debug "No recent instance data found for ($($Instance.name))"
                }
            }
            
            If($IncludeModelDeviceProperties){
                $PropertiesHash = @{}
                $Properties = $($Instance.customProperties + $Instance.autoProperties) | Where-Object {$_.name -notmatch ".pass|.community|.key|.cert|.secret|.user|system.|.id"}

                Foreach ($Prop in $Properties){
                    $Prop.name = "autodiscovery." + $Prop.name.replace("auto.","")
                    $PropertiesHash.Add($Prop.name,$Prop.value)
                }
            }

            $Instances.Add([PSCustomObject]@{
                Name            = (($Instance.name -replace '[#\\/;=]', '_') -replace '[\[\]{}]','')
                DisplayName     = If($Instance.displayName){(($Instance.displayName -replace '[#\\;=]', '_') -replace '[\[\]{}]','')}Else{(($Datasource.displayName -replace '[#\\;=]', '_'))}
                Description     = $Instance.description
                Properties       = $PropertiesHash
                Type            = "DeviceModeled"
                Data            = $Data
            })
        }

        Return $Instances
    }
    Else{
        If($Datasource.tags){
            $Type = Switch -Regex ($Datasource.tags){
                'inode|disk|drive'                  {"Disk"}
                'filesystem|file'                   {"FileSystem"}
                'core|cpu|processor'                {"CPU"}
                'vlan'                              {"VLAN"}
                'chassis|array|cluster|node'        {"Node"}
                'pdu|ups|battery'                   {"Battery"}
                'psu|power'                         {"PowerSupply"}
                'temperature|voltage'               {"Sensor"}
                'interface|port'                    {"Interface"}
                'ec2|compute engine|vm'             {"Server"}
                default                             {"Instance"}
            }
        }
        Else{
            $Type = "Unknown"
        }
        Write-Debug "Datasource instance type detected as $Type, using type for instance generation"

        #For multiple instances loop through and generate insance types
        For (($i = 1); $i -le $InstanceCount; $i++){
            #Generate instance name based on tags and dp names
            $Name = $Type + '{0:d2}' -f $i
            $DisplayName = $Type + '{0:d2}' -f $i
            $Description = ""

            #Add generated instance to instance list
            $Instances.Add([PSCustomObject]@{
                Name            = ($Name -replace '[#\\;=]', '_')
                DisplayName     = ($DisplayName -replace '[#\\;=]', '_')
                Description     = $Description
                Properties        = @{}
                Type            = $Type
                Data            = @()
            })
        }
    }

    Return $Instances
}