comms-channels.md

Various internal comms channels used in OneFuzz

Storage Queues:

• Per pool queue. These are used to queue Worksets to nodes in a given pool. (location: <pool_id> on fuzz storage account)

• Per task queue. These are used for tasks that use an input queue such as "new crashing inputs" (location: <task_id> on fuzz storage account)

• Per instance 'Heartbeat' queue. Agents send status 'heartbeat' messages to the API service (location: heartbeats on func storage account)

• Oauth2 enabled Backchannel HTTP endpoint. Agents send & receive messages via endpoint

  • location: agent/commands on azure functions instance
  • location: agent/events on azure functions instance
  • location: agent/register on azure functions instance

• Per instance file change notification queue. Event-Grid updates file updates in the fuzz storage account (location: file-changes on func storage account)

• Per instance proxy queue. Scaleset proxy agents send status updates to the API service (location: proxy on func storage account)

• Per instance update queue. API service uses this to queue updates in the future (location update-queue on func storage account)