doc: mention interactive task in developer guide

Signed-off-by: Nathan Cutler <ncutler@suse.com>

diff --git a/doc/dev/index.rst b/doc/dev/index.rst
index a61260bd4708d27135064d3f184efe1aeef37a20..a59b49223a2067c049e4f7040403bff1b867580b 100644 (file)
--- a/doc/dev/index.rst
+++ b/doc/dev/index.rst
@@ -1341,6 +1341,7 @@ engineer can then ssh into the running cluster. Simply add the following
 snippet in the desired place within the test YAML and schedule a run with the
 test::
 
+    tasks:
     - exec:
         client.0:
           - sleep 1000000000 # forever
@@ -1348,6 +1349,11 @@ test::
 (Make sure you have a ``client.0`` defined in your ``roles`` stanza or adapt
 accordingly.)
 
+The same effect can be achieved using the ``interactive`` task::
+
+    tasks:
+    - interactive
+
 By following the test log, you can determine when the test cluster has entered
 the "sleep forever" condition. At that point, you can ssh to the teuthology
 machine and from there to one of the target VMs (OpenStack) or teuthology