Configuration format v1 (#1230)

* Initial pass at refactoring config (not finished)

* Don't forget current state and EDU servers

* More shifting around

* Update server key API tests

* Fix roomserver test

* Fix more tests

* Further tweaks

* Fix current state server test (sort of)

* Maybe fix appservices

* Fix client API test

* Include database connection string in database options

* Fix sync API build

* Update config test

* Fix unit tests

* Fix federation sender build

* Fix gobind build

* Set Listen address for all services in HTTP monolith mode

* Validate config, reinstate appservice derived in directory, tweaks

* Tweak federation API test

* Set MaxOpenConnections/MaxIdleConnections to previous values

* Update generate-config

keyserver/keyserver.go

@@ -36,17 +36,14 @@ func AddInternalRoutes(router *mux.Router, intAPI api.KeyInternalAPI) {
 // NewInternalAPI returns a concerete implementation of the internal API. Callers
 // can call functions directly on the returned API or via an HTTP interface using AddInternalRoutes.
 func NewInternalAPI(
-	cfg *config.Dendrite, fedClient *gomatrixserverlib.FederationClient, producer sarama.SyncProducer,
+	cfg *config.KeyServer, fedClient *gomatrixserverlib.FederationClient, producer sarama.SyncProducer,
 ) api.KeyInternalAPI {
-	db, err := storage.NewDatabase(
-		string(cfg.Database.E2EKey),
-		cfg.DbProperties(),
-	)
+	db, err := storage.NewDatabase(&cfg.Database)
 	if err != nil {
 		logrus.WithError(err).Panicf("failed to connect to key server database")
 	}
 	keyChangeProducer := &producers.KeyChange{
-		Topic:    string(cfg.Kafka.Topics.OutputKeyChangeEvent),
+		Topic:    string(cfg.Matrix.Kafka.Topics.OutputKeyChangeEvent),
 		Producer: producer,
 		DB:       db,
 	}