Public/Add-DatabricksPythonJob.ps1
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.SYNOPSIS Creates Python Job in Databricks. Script uses Databricks API 2.0 create job query: https://docs.azuredatabricks.net/api/latest/jobs.html#create .DESCRIPTION Creates Python Job in Databricks. Script uses Databricks API 2.0 create job query: https://docs.azuredatabricks.net/api/latest/jobs.html#create If the job name exists it will be updated instead of creating a new job. .PARAMETER BearerToken Your Databricks Bearer token to authenticate to your workspace (see User Settings in Datatbricks WebUI) .PARAMETER Region Azure Region - must match the URL of your Databricks workspace, example: northeurope .PARAMETER JobName Name of the job that will appear in the Job list. If a job with this name exists it will be updated. .PARAMETER ClusterId The ClusterId of an existing cluster to use. Optional. .PARAMETER SparkVersion Spark version for cluster that will run the job. Example: 5.5.x-scala2.11 Note: Ignored if ClusterId is populated. .PARAMETER NodeType Type of worker for cluster that will run the job. Example: Standard_D3_v2. Note: Ignored if ClusterId is populated. .PARAMETER DriverNodeType Type of driver for cluster that will run the job. Example: Standard_D3_v2. If not provided the NodeType will be used. Note: Ignored if ClusterId is populated. .PARAMETER MinNumberOfWorkers Number of workers for cluster that will run the job. Note: If Min & Max Workers are the same autoscale is disabled. Note: Ignored if ClusterId is populated. .PARAMETER MaxNumberOfWorkers Number of workers for cluster that will run the job. Note: If Min & Max Workers are the same autoscale is disabled. Note: Ignored if ClusterId is populated. .PARAMETER Timeout Timeout, in seconds, applied to each run of the job. If not set, there will be no timeout. .PARAMETER MaxRetries An optional maximum number of times to retry an unsuccessful run. A run is considered to be unsuccessful if it completes with a FAILED result_state or INTERNAL_ERROR life_cycle_state. The value -1 means to retry indefinitely and the value 0 means to never retry. If not set, the default behavior will be never retry. .PARAMETER ScheduleCronExpression By default, job will run when triggered using Jobs UI or sending API request to run. You can provide cron schedule expression for job's periodic run. How to compose cron schedule expression: http://www.quartz-scheduler.org/documentation/quartz-2.1.x/tutorials/tutorial-lesson-06.html .PARAMETER Timezone Timezone for Cron Schedule Expression. Required if ScheduleCronExpression provided. See here for all possible timezones: http://joda-time.sourceforge.net/timezones.html Example: UTC .PARAMETER PythonPath Path to the py script in Databricks that will be executed by this Job. Must be a DBFS location from root, example "dbfs:/folder/file.py". .PARAMETER PythonParameters Optional parameters that will be provided to script when Job is executed. Example: "val1", "val2" .PARAMETER Libraries Optional. Array of json strings. Example: '{"pypi":{package:"simplejson"}}', '{"jar", "DBFS:/mylibraries/test.jar"}' .PARAMETER PythonVersion 2 or 3 - defaults to 2. .PARAMETER InitScripts Init scripts to run post creation. Example: "dbfs:/script/script1", "dbfs:/script/script2" .PARAMETER SparkEnvVars An object containing a set of optional, user-specified environment variable key-value pairs. Key-value pairs of the form (X,Y) are exported as is (i.e., export X='Y') while launching the driver and workers. Example: '@{SPARK_WORKER_MEMORY="29000m";SPARK_LOCAL_DIRS="/local_disk0"} .PARAMETER Spark_conf Hashtable. Example @{"spark.speculation"=$true; "spark.streaming.ui.retainedBatches"= 5} .PARAMETER CustomTags Custom Tags to set, provide hash table of tags. Example: @{CreatedBy="SimonDM";NumOfNodes=2;CanDelete=$true} .PARAMETER RunImmediate Switch. Performs a Run Now task instead of creating a job. The process is executed immediately in an async process. Setting this option returns a RunId. .PARAMETER ClusterLogPath DBFS Location for Cluster logs - must start with dbfs:/ Example dbfs:/logs/mycluster .EXAMPLE PS C:\> Add-DatabricksPythonJob -BearerToken $BearerToken -Region $Region -JobName "Job1" -SparkVersion "5.5.x-scala2.11" -NodeType "Standard_D3_v2" -MinNumberOfWorkers 2 -MaxNumberOfWorkers 2 -Timeout 100 -MaxRetries 3 -ScheduleCronExpression "0 15 22 ? * *" -Timezone "UTC" -PythonPath "/Shared/TestPython.py" -PythonParameters "val1", "val2" -Libraries '{"pypi":{package:"simplejson"}}', '{"jar": "DBFS:/mylibraries/test.jar"}' The above example create a job on a new cluster. .NOTES Author: Simon D'Morias / Data Thirst Ltd #> Function Add-DatabricksPythonJob { [cmdletbinding()] param ( [parameter(Mandatory = $false)][string]$BearerToken, [parameter(Mandatory = $false)][string]$Region, [parameter(Mandatory = $true)][string]$JobName, [parameter(Mandatory = $false)][string]$ClusterId, [parameter(Mandatory = $false)][string]$SparkVersion, [parameter(Mandatory = $false)][string]$NodeType, [parameter(Mandatory = $false)][string]$DriverNodeType, [parameter(Mandatory = $false)][int]$MinNumberOfWorkers, [parameter(Mandatory = $false)][int]$MaxNumberOfWorkers, [parameter(Mandatory = $false)][int]$Timeout, [parameter(Mandatory = $false)][int]$MaxRetries, [parameter(Mandatory = $false)][string]$ScheduleCronExpression, [parameter(Mandatory = $false)][string]$Timezone, [parameter(Mandatory = $true)][string]$PythonPath, [parameter(Mandatory = $false)][string[]]$PythonParameters, [parameter(Mandatory = $false)][string[]]$Libraries, [parameter(Mandatory = $false)][ValidateSet(2,3)] [string]$PythonVersion=3, [parameter(Mandatory = $false)][hashtable]$Spark_conf, [parameter(Mandatory = $false)][hashtable]$CustomTags, [parameter(Mandatory = $false)][string[]]$InitScripts, [parameter(Mandatory = $false)][hashtable]$SparkEnvVars, [parameter(Mandatory = $false)][switch]$RunImmediate, [parameter(Mandatory = $false)][string]$ClusterLogPath, [parameter(Mandatory = $false)][string]$InstancePoolId ) [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12 $Headers = GetHeaders $PSBoundParameters $ExistingJobs = Get-DatabricksJobs -BearerToken $BearerToken -Region $Region $ExistingJobDetail = $ExistingJobs | Where-Object {$_.settings.name -eq $JobName} | Select-Object job_id -First 1 if (($ExistingJobDetail) -and (!($RunImmediate.IsPresent))){ $JobId = $ExistingJobDetail.job_id[0] Write-Verbose "Updating JobId: $JobId" $Mode = "reset" } else{ $Mode = "create" } $JobBody = @{} if ($RunImmediate.IsPresent){ $JobBody['run_name'] = $JobName } else{ $JobBody['name'] = $JobName } If ($ClusterId){ $JobBody['existing_cluster_id'] = $ClusterId } else { $ClusterArgs = @{} $ClusterArgs['SparkVersion'] = $SparkVersion $ClusterArgs['NodeType'] = $NodeType $ClusterArgs['MinNumberOfWorkers'] = $MinNumberOfWorkers $ClusterArgs['MaxNumberOfWorkers'] = $MaxNumberOfWorkers $ClusterArgs['DriverNodeType'] = $DriverNodeType $ClusterArgs['Spark_conf'] = $Spark_conf $ClusterArgs['CustomTags'] = $CustomTags $ClusterArgs['InitScripts'] = $InitScripts $ClusterArgs['SparkEnvVars'] = $SparkEnvVars $ClusterArgs['PythonVersion'] = $PythonVersion $ClusterArgs['ClusterLogPath'] = $ClusterLogPath $ClusterArgs['InstancePoolId'] = $InstancePoolId $JobBody['new_cluster'] = (GetNewClusterCluster @ClusterArgs) } If ($PSBoundParameters.ContainsKey('Timeout')) {$JobBody['timeout_seconds'] = $Timeout} If ($PSBoundParameters.ContainsKey('MaxRetries')) {$JobBody['max_retries'] = $MaxRetries} If ($PSBoundParameters.ContainsKey('ScheduleCronExpression')) { $JobBody['schedule'] = @{"quartz_cron_expression"=$ScheduleCronExpression;"timezone_id"=$Timezone} } $Python = @{} $Python['python_file'] = $PythonPath If (($PSBoundParameters.ContainsKey('PythonParameters')) -and ($null -ne $PythonParameters)) { If ($PythonParameters.Count -eq 1) { $PythonParameters += '{"DummyKey":"1"}' } $Python['parameters'] = $PythonParameters } $JobBody['spark_python_task'] = $Python If (($PSBoundParameters.ContainsKey('Libraries')) -and ($null -ne $Libraries)) { If ($Libraries.Count -eq 1) { $Libraries += '{"DummyKey":"1"}' } $JobBody['libraries'] = $Libraries | ConvertFrom-Json } If ($Mode -eq 'create'){ $Body = $JobBody } else { $Body = @{} $Body['job_id']= $JobId $Body['new_settings'] = $JobBody } $BodyText = $Body | ConvertTo-Json -Depth 10 Write-Verbose $BodyText $BodyText = Remove-DummyKey $BodyText Write-Verbose $BodyText Try { if ($RunImmediate.IsPresent){ $Url = "jobs/runs/submit" } else{ $Url = "jobs/$Mode" } $JobDetails = Invoke-RestMethod -Method Post -Body $BodyText -Uri "$global:DatabricksURI/api/2.0/$Url" -Headers $Headers } Catch { Write-Output "StatusCode:" $_.Exception.Response.StatusCode.value__ Write-Output "StatusDescription:" $_.Exception.Response.StatusDescription Write-Error $_.ErrorDetails.Message } if ($RunImmediate.IsPresent){ Return $JobDetails.run_id } else{ if ($Mode -eq "create") { Return $JobDetails.job_id } else { Return $JobId } } } |