Add entry point for single OSD deployments

zaza/openstack/charm_tests/ceph/osd/tests.py

@@ -24,6 +24,39 @@
 import zaza.model as zaza_model
 
 
+def setup_osd_standalone():
+    """Perform the necessary steps to setup a single OSD."""
+    cmds = ['sudo ceph osd crush rule rm replicated_rule',
+            'sudo ceph osd crush rule create-replicated replicated_rule '
+            'default osd',
+            'sudo ceph osd erasure-code-profile rm default',
+            'sudo ceph osd erasure-code-profile set default '
+            'plugin=jerasure k=2 m=1 crush-failure-domain=osd']
+    for cmd in cmds:
+        zaza_model.run_on_unit('ceph-mon/0', cmd)
+
+    loops = []
+    for file in ('l1', 'l2', 'l3'):
+        zaza_model.run_on_unit('ceph-osd/0', 'touch %s' % file)
+        zaza_model.run_on_unit('ceph-osd/0', 'truncate --size 2G ./%s' % file)
+        out = zaza_model.run_on_unit('ceph-osd/0',
+                                     'sudo losetup -fP --show ./%s' % file)
+        loops.append(out['Stdout'].strip())
+
+    for loop in loops:
+        zaza_model.run_action_on_leader('ceph-osd', 'add-disk',
+                                        action_params={'osd-devices': loop})
+
+    states = None
+    try:
+        zaza_model.get_application('ubuntu')
+        states = {'ubuntu': {'workload-status-message': ''}}
+    except KeyError:
+        pass
+
+    zaza_model.wait_for_application_states(states=states)
+
+
 class SecurityTest(unittest.TestCase):
     """Ceph Security Tests."""