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/'