create dev cluster with containers

Author: halfcyan

.gitignore

@@ -12,9 +12,15 @@ dev
 *.pdb
 
 *.yaml
+# The local development container stack is checked in, despite the broad `dev`
+# scratch-directory rule above.
+!.local/
+!.local/dev/
+!.local/dev/**
+
 # Local Ceph credentials and loopback OSD state.
-.local/ceph/generated/
-.local/ceph/state/
+.local/dev/ceph/generated/
+.local/dev/ceph/state/
 
 # Generated by cargo mutants
 # Contains mutation testing data