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