Python script tasks now use official python:3-13-slim image

Overview

To make it easier to get started, we used a custom ghcr.io/kestra-io/kestrapy:latest image to contain kestra and amazon-ion pip packages. The tasks now use the official python:3-13-slim image by default.

If you want to maintain the previous behavior, simply add those packages using the new dependencies property and they will be installed at runtime (and cached):

id: python_demo
namespace: company.team
tasks:
- id: python
type: io.kestra.plugin.scripts.python.Script
dependencies:
- kestra
- amazon-ion
- requests
script: |
from kestra import Kestra
import requests
response = requests.get('https://kestra.io')
print(response.status_code)
Kestra.outputs({'status': response.status_code, 'text': response.text})