Add FastAPI roles controller, de-duplicate app initialization for FastAPI.

scripts/fapi.py

@@ -1,6 +1,4 @@
 import uvicorn
-from fastapi import FastAPI
-from fastapi.middleware.wsgi import WSGIMiddleware
 from galaxy_main import (
     GalaxyConfigBuilder,
     main,
@@ -8,6 +6,7 @@ from galaxy_main import (
 
 from galaxy.util.properties import load_app_properties
 from galaxy.webapps.galaxy.buildapp import app_factory
+from galaxy.webapps.galaxy.fast_app import initialize_fast_app
 
 app = FastAPI()
 
@@ -17,14 +16,7 @@ def wsgiloop(args, log):
     kwds = config_builder.app_kwds()
     kwds = load_app_properties(**kwds)
     gx = app_factory(global_conf=config_builder.global_conf(), **kwds)
-    wsgi_handler = WSGIMiddleware(gx)
-
-    # app factory will import api controllers while passing in app object,
-    # this needs to happen before we can import the router from individual api modules
-    # (until we've replaced everything with FastAPI, at which point we can do normal imports).
-    from galaxy.webapps.galaxy.api import jobs
-    app.include_router(jobs.router, prefix='/api/jobs')
-    app.mount('/', wsgi_handler)
+    initialize_fast_app(gx, app=app)
     uvicorn.run(app)