global:
  slack_api_url_file: '/global_file'

route:
  receiver: 'slack-notifications'
  group_by: [alertname, datacenter, app]

receivers:
- name: 'slack-notifications'
  slack_configs:
  # Use global
  - channel: '#alerts1'
    text: 'test'
  # Override global with other file
  - channel: '#alerts2'
    text: 'test'
    api_url_file: '/override_file'
  # Override global with inline URL
  - channel: '#alerts3'
    text: 'test'
    api_url: 'http://mysecret.example.com/'
