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pluginsplugin-sparktasksio.kestra.plugin.spark.pythonsubmit

​Python​Submit

PythonSubmit PythonSubmit

yaml
type: "io.kestra.plugin.spark.PythonSubmit"

Submit a pyspark job to remote cluster

Examples

yaml
id: "python_submit"
type: "io.kestra.plugin.spark.PythonSubmit"
runner: DOCKER
docker:
  networkMode: host
  user: root
master: spark://localhost:7077
args:
- "10"
mainScript: |
  import sys
  from random import random
  from operator import add
  from pyspark.sql import SparkSession


  if __name__ == "__main__":
      spark = SparkSession \
          .builder \
          .appName("PythonPi") \
          .getOrCreate()

      partitions = int(sys.argv[1]) if len(sys.argv) > 1 else 2
      n = 100000 * partitions

      def f(_: int) -> float:
          x = random() * 2 - 1
          y = random() * 2 - 1
          return 1 if x ** 2 + y ** 2 <= 1 else 0

      count = spark.sparkContext.parallelize(range(1, n + 1), partitions).map(f).reduce(add)
      print("Pi is roughly %f" % (4.0 * count / n))

      spark.stop()

Properties

mainScript

  • Type: string
  • Dynamic: ✔️
  • Required: ✔️

the main python script

master

  • Type: string
  • Dynamic: ✔️
  • Required: ✔️

the Spark master hostname for the application.

runner

  • Type: string
  • Dynamic: ❌
  • Required: ✔️
  • Default: PROCESS
  • Possible Values:
    • PROCESS
    • DOCKER

Runner to use

appFiles

  • Type: object
  • SubType: string
  • Dynamic: ✔️
  • Required: ❌

Adds a file to be submitted with the application.

Must be Kestra internal storage url

args

  • Type: array
  • SubType: string
  • Dynamic: ✔️
  • Required: ❌

command line arguments for the application.

configurations

  • Type: object
  • SubType: string
  • Dynamic: ✔️
  • Required: ❌

configuration value for the application.

deployMode

  • Type: string
  • Dynamic: ✔️
  • Required: ❌
  • Possible Values:
    • CLIENT
    • CLUSTER

command line arguments for the application.

docker

  • Type: DockerOptions
  • Dynamic: ❌
  • Required: ❌
  • Default: {image=bitnami/spark, pullPolicy=ALWAYS}

Docker options when using the DOCKER runner

env

  • Type: object
  • SubType: string
  • Dynamic: ✔️
  • Required: ❌

Additional environment variables for the current process.

name

  • Type: string
  • Dynamic: ✔️
  • Required: ❌

the application name.

pythonFiles

  • Type: object
  • SubType: string
  • Dynamic: ✔️
  • Required: ❌

Adds a python file / zip / egg to be submitted with the application.

Must be Kestra internal storage url

sparkSubmitPath

  • Type: string
  • Dynamic: ✔️
  • Required: ❌
  • Default: spark-submit

the spark-submit binary path.

verbose

  • Type: boolean
  • Dynamic: ❌
  • Required: ❌
  • Default: false

Enables verbose reporting

Outputs

exitCode

  • Type: integer
  • Default: 0

The exit code of the entire Flow Execution

outputFiles

  • Type: object
  • SubType: string

The output files URI in Kestra internal storage

vars

  • Type: object

The value extracted from the output of the executed commands

Definitions

DeviceRequest

capabilities

  • Type: array
  • SubType: array
  • Dynamic: ❌
  • Required: ❌

A list of capabilities; an OR list of AND lists of capabilities.

count

  • Type: integer
  • Dynamic: ❌
  • Required: ❌

A request for devices to be sent to device drivers

deviceIds

  • Type: array
  • SubType: string
  • Dynamic: ✔️
  • Required: ❌

A request for devices to be sent to device drivers

driver

  • Type: string
  • Dynamic: ✔️
  • Required: ❌

A request for devices to be sent to device drivers

options

  • Type: object
  • SubType: string
  • Dynamic: ❌
  • Required: ❌

Driver-specific options, specified as key/value pairs.

These options are passed directly to the driver.

Credentials

auth

  • Type: string
  • Dynamic: ✔️
  • Required: ❌

The registry auth.

The auth field is a base64-encoded authentication string of username:password or a token.

identityToken

  • Type: string
  • Dynamic: ✔️
  • Required: ❌

The identity token.

password

  • Type: string
  • Dynamic: ✔️
  • Required: ❌

The registry password.

registry

  • Type: string
  • Dynamic: ✔️
  • Required: ❌

The registry url.

if not defined, the registry will be extracted from the image name.

registryToken

  • Type: string
  • Dynamic: ✔️
  • Required: ❌

The registry token.

username

  • Type: string
  • Dynamic: ✔️
  • Required: ❌

The registry username.

Memory

kernelMemory

  • Type: string
  • Dynamic: ✔️
  • Required: ❌

The maximum amount of kernel memory the container can use.

The minimum allowed value is 4m. Because kernel memory cannot be swapped out, a container which is starved of kernel memory may block host machine resources, which can have side effects on the host machine and on other containers. See --kernel-memory details.

memory

  • Type: string
  • Dynamic: ✔️
  • Required: ❌

The maximum amount of memory resources the container can use.

That is, you must set the value to at least 6 megabytes.

memoryReservation

  • Type: string
  • Dynamic: ✔️
  • Required: ❌

Allows you to specify a soft limit smaller than --memory which is activated when Docker detects contention or low memory on the host machine.

If you use memoryReservation, it must be set lower than memory for it to take precedence. Because it is a soft limit, it does not guarantee that the container doesn’t exceed the limit.

memorySwap

  • Type: string
  • Dynamic: ✔️
  • Required: ❌

The amount of memory this container is allowed to swap to disk

If memory and memorySwap are set to the same value, this prevents containers from using any swap. This is because memorySwap is the amount of combined memory and swap that can be used, while memory is only the amount of physical memory that can be used.

memorySwappiness

  • Type: string
  • Dynamic: ✔️
  • Required: ❌

The amount of memory this container is allowed to swap to disk

By default, the host kernel can swap out a percentage of anonymous pages used by a container. You can set memorySwappiness to a value between 0 and 100, to tune this percentage.

oomKillDisable

  • Type: boolean
  • Dynamic: ❌
  • Required: ❌

By default, if an out-of-memory (OOM) error occurs, the kernel kills processes in a container.

To change this behavior, use the oomKillDisable option. Only disable the OOM killer on containers where you have also set the memory option. If the memory flag is not set, the host can run out of memory, and the kernel may need to kill the host system’s processes to free the memory.

DockerOptions

image

  • Type: string
  • Dynamic: ✔️
  • Required: ✔️
  • Min length: 1

Docker image to use

config

  • Type: object
  • Dynamic: ✔️
  • Required: ❌

Docker config file

Docker configuration file that can set access credentials to private container registries. Usually located in ~/.docker/config.json

cpu

  • Type: Cpu
  • Dynamic: ❌
  • Required: ❌

Limits the CPU usage to a given maximum threshold value.

By default, each container’s access to the host machine’s CPU cycles is unlimited. You can set various constraints to limit a given container’s access to the host machine’s CPU cycles.

credentials

Credentials for a private container registry.

deviceRequests

A list of device requests to be sent to device drivers

entryPoint

  • Type: array
  • SubType: string
  • Dynamic: ✔️
  • Required: ❌

Docker entrypoint to use

extraHosts

  • Type: array
  • SubType: string
  • Dynamic: ✔️
  • Required: ❌

Extra hostname mappings to the container network interface configuration

host

  • Type: string
  • Dynamic: ✔️
  • Required: ❌

Docker api uri

memory

  • Type: Memory
  • Dynamic: ❌
  • Required: ❌

Limits memory usage to a given maximum threshold value.

Docker can enforce hard memory limits, which allow the container to use no more than a given amount of user or system memory, or soft limits, which allow the container to use as much memory as it needs unless certain conditions are met, such as when the kernel detects low memory or contention on the host machine. Some of these options have different effects when used alone or when more than one option is set.

networkMode

  • Type: string
  • Dynamic: ✔️
  • Required: ❌

Docker network mode to use e.g. host, none, etc.

pullPolicy

  • Type: object
  • Dynamic: ❓
  • Required: ❌

shmSize

  • Type: string
  • Dynamic: ✔️
  • Required: ❌

Size of /dev/shm in bytes.

The size must be greater than 0. If omitted the system uses 64MB.

user

  • Type: string
  • Dynamic: ✔️
  • Required: ❌

User within the container

volumes

  • Type: array
  • SubType: string
  • Dynamic: ✔️
  • Required: ❌

List of volumes to mount

Must be a valid mount expression as string, example : /home/user:/app

Volumes mount are disabled by default for security reasons; you must enable them on server configuration by setting kestra.tasks.scripts.docker.volume-enabled to true

Cpu

cpus

  • Type: integer
  • Dynamic: ❌
  • Required: ❌

The maximum amount of CPU resources a container can use.

For instance, if the host machine has two CPUs and you set cpus:"1.5", the container is guaranteed at most one and a half of the CPUs