Add devstack base job for zuul v3
This should be managed in the devstack repo, since it's a base job to
run devstack.
Change-Id: Iffe54fbccbccd68db08f79a1b51dd7f76dbff408
Depends-On: Ie2119f24360d56690ffd772b95a9ea6b98dd4a39
diff --git a/roles/setup-devstack-source-dirs/README.rst b/roles/setup-devstack-source-dirs/README.rst
new file mode 100644
index 0000000..4ebf839
--- /dev/null
+++ b/roles/setup-devstack-source-dirs/README.rst
@@ -0,0 +1,11 @@
+Set up the devstack source directories
+
+Ensure that the base directory exists, and then move the source repos
+into it.
+
+**Role Variables**
+
+.. zuul:rolevar:: devstack_base_dir
+ :default: /opt/stack
+
+ The devstack base directory.