colored-logs.yaml

# This example demonstrates colored logs of the logs viewer on Argo UI.
apiVersion: argoproj.io/v1alpha1
kind: Workflow
metadata:
  generateName: colored-logs-
spec:
  entrypoint: whalesay
  templates:
  - name: whalesay
    script:
      image: python:3.7
      command: ["python"]
      source: |
        import time
        import random

        messages = [
            'No Color',
            '\x1b[30m%s\x1b[0m' % 'FG Black',
            '\x1b[32m%s\x1b[0m' % 'FG Green',
            '\x1b[34m%s\x1b[0m' % 'FG Blue',
            '\x1b[36m%s\x1b[0m' % 'FG Cyan',
            '\x1b[41m%s\x1b[0m' % 'BG Red',
            '\x1b[43m%s\x1b[0m' % 'BG Yellow',
            '\x1b[45m%s\x1b[0m' % 'BG Magenta',
        ]
        for i in range(1, 100):
          print(random.choice(messages))
          time.sleep(1)
      env:
      - name: PYTHONUNBUFFERED
        value: '1'