Remove orphan containers on `local start`

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Changelog
 
+## Latest
+
+- [Improvement] Remove orphan containers on `local start`
+
 ## 3.2.0 (2019-03-18)
 
 - [Improvement] `images pull` now also pulls vendor images

tutor/local.py

@@ -54,7 +54,7 @@ def pullimages(root):
 @opts.root
 @click.option("-d", "--detach", is_flag=True, help="Start in daemon mode")
 def start(root, detach):
-    command = ["up"]
+    command = ["up", "--remove-orphans"]
     if detach:
         command.append("-d")
     docker_compose(root, *command)