Support multiple gateway units

Fix bug which was causing rgw not to be added to the dashboard
when there were multiple units of the rgw application on
Octopus.

func-test-pr: https://github.com/openstack-charmers/zaza-openstack-tests/pull/646

Change-Id: I971e70afe8233982c0774b34a73fd6de70d3a0d8

src/charm.py

@@ -266,13 +266,16 @@ class CephDashboardCharm(ops_openstack.core.OSBaseCharm):
         """Register rados gateways in dashboard db"""
         if self.unit.is_leader():
             creds = self.radosgw_user.get_user_creds()
-            if len(creds) < 1:
+            cred_count = len(set([
+                (c['access_key'], c['secret_key'])
+                for c in creds]))
+            if cred_count < 1:
                 logging.info("No object gateway creds found")
                 return
             if self._support_multiple_gateways():
                 self._update_multi_radosgw_creds(creds)
             else:
-                if len(creds) > 1:
+                if cred_count > 1:
                     logging.error(
                         "Cannot enable object gateway support. Ceph release "
                         "does not support multiple object gateways in the "

tests/tests.yaml

@@ -7,6 +7,7 @@ smoke_bundles:
 configure:
   - zaza.openstack.charm_tests.vault.setup.auto_initialize_no_validation
   - zaza.openstack.charm_tests.ceph.dashboard.setup.check_dashboard_cert
+  - zaza.openstack.charm_tests.ceph.dashboard.setup.set_grafana_url
 tests:
   - zaza.openstack.charm_tests.ceph.dashboard.tests.CephDashboardTest
   - zaza.openstack.charm_tests.ceph.tests.CephPrometheusTest

tox.ini

@@ -32,6 +32,8 @@ whitelist_externals =
     add-to-archive.py
     bash
     charmcraft
+    ls
+    pwd
 passenv = HOME TERM CS_* OS_* TEST_*
 deps = -r{toxinidir}/test-requirements.txt
 
@@ -127,6 +129,8 @@ commands =
 [testenv:func-target]
 basepython = python3
 commands =
+    pwd
+    ls -l
     functest-run-suite --keep-model --bundle {posargs}
 
 [flake8]