outpost: update global outpost config on refresh

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

internal/outpost/ak/api.go

@@ -107,8 +107,24 @@ func (a *APIController) Start() error {
 	return nil
 }
 
+func (a *APIController) OnRefresh() error {
+	// Because we don't know the outpost UUID, we simply do a list and pick the first
+	// The service account this token belongs to should only have access to a single outpost
+	outposts, _, err := a.Client.OutpostsApi.OutpostsInstancesList(context.Background()).Execute()
+
+	if err != nil {
+		log.WithError(err).Error("Failed to fetch outpost configuration")
+		return err
+	}
+	outpost := outposts.Results[0]
+	doGlobalSetup(outpost.Config)
+
+	log.WithField("name", outpost.Name).Debug("Fetched outpost configuration")
+	return a.Server.Refresh()
+}
+
 func (a *APIController) StartBackgorundTasks() error {
-	err := a.Server.Refresh()
+	err := a.OnRefresh()
 	if err != nil {
 		return errors.Wrap(err, "failed to run initial refresh")
 	}

internal/outpost/ak/api_ws.go

@@ -82,7 +82,7 @@ func (ac *APIController) startWSHandler() {
 		if wsMsg.Instruction == WebsocketInstructionTriggerUpdate {
 			time.Sleep(ac.reloadOffset)
 			logger.Debug("Got update trigger...")
-			err := ac.Server.Refresh()
+			err := ac.OnRefresh()
 			if err != nil {
 				logger.WithError(err).Debug("Failed to update")
 			}
@@ -118,7 +118,7 @@ func (ac *APIController) startIntervalUpdater() {
 	logger := ac.logger.WithField("loop", "interval-updater")
 	ticker := time.NewTicker(5 * time.Minute)
 	for ; true; <-ticker.C {
-		err := ac.Server.Refresh()
+		err := ac.OnRefresh()
 		if err != nil {
 			logger.WithError(err).Debug("Failed to update")
 		}