Commands
type: "io.kestra.plugin.scripts.node.Commands"
Execute one or more Node commands from the Command Line Interface.
Examples
Install package, create a node script and execute it
id: "local-files"
namespace: "io.kestra.tests"
tasks:
- id: workingDir
type: io.kestra.core.tasks.flows.WorkingDirectory
tasks:
- id: inputFiles
type: io.kestra.core.tasks.storages.LocalFiles
inputs:
main.js: |
const colors = require("colors");
console.log(colors.red("Hello"));
- id: bash
type: io.kestra.plugin.scripts.node.Commands
beforeCommands:
- npm install colors
commands:
- node main.js
Properties
interpreter
- Type: array
- SubType: string
- Dynamic: ❌
- Required: ✔️
- Default:
[/bin/sh, -c]
- Min items:
1
Which interpreter to use
runner
- Type: string
- Dynamic: ❌
- Required: ✔️
- Default:
DOCKER
- Possible Values:
PROCESS
DOCKER
Runner to use
warningOnStdErr
- Type: boolean
- Dynamic: ❌
- Required: ✔️
- Default:
true
Set the task state to
WARNING
if anystdErr
is emitted
beforeCommands
- Type: array
- SubType: string
- Dynamic: ✔️
- Required: ❌
A list of commands that will run before
commands
, allowing to set up the environment e.g.pip install -r requirements.txt
commands
- Type: array
- SubType: string
- Dynamic: ✔️
- Required: ❌
The commands to run
docker
- Type: DockerOptions
- Dynamic: ❌
- Required: ❌
- Default:
{image=node, pullPolicy=ALWAYS}
Docker options when using the
DOCKER
runner
env
- Type: object
- SubType: string
- Dynamic: ✔️
- Required: ❌
Additional environment variables for the current process.
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.
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.
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
- Type: Credentials
- Dynamic: ✔️
- Required: ❌
Credentials for a private container registry.
deviceRequests
- Type: array
- SubType: DeviceRequest
- Dynamic: ❌
- Required: ❌
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: ❌
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