Optional string value provides a comma-separated list of events and actions that trigger webhooks. If unset all events and actions trigger webhooks.
Limit by event type:
DRONE_WEBHOOK_EVENTS=user,build
Limit by event type and action:
DRONE_WEBHOOK_EVENTS=user:created,repo
List of available events:
user:created user:updated user:deleted repo:enabled repo:disabled repo:updated build:created build:updated