script

README

script plugin

This plugin execute a script.

Warn: This plugin will keep running until the execution is done

Runtime(s) must be accessible on the host you deploy µTask if you want to execute interpreted scripts: verify shebang and available packages

Files must be located under scripts folder, you should set exec permissions (+x). Otherwise the script plugin will try to set the exec permissions.

Configuration

Fields	Description
file	file name under scripts folder
argv	a collection of script argv
timeout	timeout of the script execution
stdin	inject stdin in your script
last_line_not_json	skip or not unmarshaling of last JSON line
allow_exit_non_zero	allow or not non zero exit status code

Example

An action of type script requires the following kind of configuration:

action:
  type: script
  configuration:
    # mandatory, string
    # file field must be related to you scripts path (./scripts)
    # and could modified /w `scripts-path` flag when you run binary
    file: hello-world.sh
    # optional, a collection of string
    argv:
        - world
    # optional, string as Duration
    # Valid time units are "ns", "us" (or "µs"), "ms", "s", "m", "h".
    # default is 2m
    timeout: "25s"
    # optional, boolean
    # default is false, can't be templated
    last_line_not_json: false
    # optional, boolean
    # default is false, can't be templated
    allow_exit_non_zero: false

Note

The plugin returns two objects, the Payload who is the last returned line of your script as json:

{"dumb_string":"Hello world!","random_object":{"foo":"bar"}}

Your JSON must be printed on last line

The Metadata to fetch informations about plugin execution:

{
  "exit_code":"0",
  "process_state":"exit status 0",
  // Output combine Stdout and Stderr streams without any distinction
  "output":"Hello world script\n{\"dumb_string\":\"Hello world!\",\"random_object\":{\"foo\":\"bar\"}}\n",
  "execution_time":"846.889µs",
  "error":""
}

Documentation

Index

• Variables
• type Config
• type Metadata

Variables

var (
	Plugin = taskplugin.New("script", "0.1", exec,
		taskplugin.WithConfig(validConfig, Config{}),
	)
)

the script plugin execute scripts

Types

type Config

type Config struct {
	File                  string   `json:"file"`
	Argv                  []string `json:"argv,omitempty"`
	Timeout               string   `json:"timeout,omitempty"`
	Stdin                 string   `json:"stdin,omitempty"`
	LastLineNotJSONOutput bool     `json:"last_line_not_json,omitempty"`
	AllowExitNonZero      bool     `json:"allow_exit_non_zero,omitempty"`
}

Config is the configuration needed to execute a script

type Metadata

type Metadata struct {
	ExitCode      string `json:"exit_code"`
	ProcessState  string `json:"process_state"`
	Output        string `json:"output"`
	ExecutionTime string `json:"execution_time"`
	Error         string `json:"error"`
}

Metadata represents the metadata of script execution