tidy up

compose.system.yaml

@@ -16,15 +16,10 @@ x-dagster-env: &dagster_env
 
 x-volumes: &volumes
   volumes:
-    - /opt/dagster/dagster.yaml:/opt/dagster/home/dagster.yaml
-    - /opt/dagster/workspace.yaml:/opt/dagster/home/workspace.yaml
-    - /var/run/docker.sock:/var/run/docker.sock
-
-    - /opt/dagster/storage/import/:/storage/import/
-    - /opt/dagster/storage/deals/:/storage/deals/
-
-    - /opt/dagster/src/app/:/opt/dagster/home/app/
-    - /opt/dagster/src/repo.py:/opt/dagster/home/repo.py
+    - /opt/dagster/dagster.yaml:/opt/dagster/home/dagster.yaml:ro
+    - /opt/dagster/workspace.yaml:/opt/dagster/home/workspace.yaml:ro
+    - /opt/dagster/storage/:/storage/:rw
+    - /var/run/docker.sock:/var/run/docker.sock:rw
 
 services:
   # This service runs the postgres DB used by dagster for run storage, schedule storage,