WIP - update devstack plugin for ipv6

Set listen address to devstack variable SERVICE_LISTEN_ADDRESS
to override the default 0.0.0.0 (which does not listen to ipv6 addresses).

Change-Id: I0e1e695eb266665280f01847eab1771a9904ff06

.zuul.yaml

@@ -163,22 +163,22 @@
         USE_PYTHON3: true
 
 - project:
-    templates:
-      - check-requirements
-      - openstack-cover-jobs
-      - openstack-lower-constraints-jobs
-      - openstack-python-jobs
-      - openstack-python3-train-jobs
-      - release-notes-jobs-python3
-      - publish-openstack-docs-pti
-      - periodic-stable-jobs
+#    templates:
+#      - check-requirements
+#      - openstack-cover-jobs
+#      - openstack-lower-constraints-jobs
+#      - openstack-python-jobs
+#      - openstack-python3-train-jobs
+#      - release-notes-jobs-python3
+#      - publish-openstack-docs-pti
+#      - periodic-stable-jobs
     check:
       jobs:
-        - congress-tempest-py2-mysql
-        - congress-tempest-py3-mysql
-        - congress-tempest-replicated-postgresql
-        - congress-tempest-py2-JsonIngester
-        - congress-tempest-py3-JsonIngester
+#        - congress-tempest-py2-mysql
+#        - congress-tempest-py3-mysql
+#        - congress-tempest-replicated-postgresql
+#        - congress-tempest-py2-JsonIngester
+#        - congress-tempest-py3-JsonIngester
         - congress-tempest-ipv6-only
         # Note: the above jobs most likely provides sufficient coverage
         # - congress-tempest-py2-postgresql

congress/common/config.py

@@ -29,6 +29,7 @@ from congress import version
 LOG = logging.getLogger(__name__)
 
 core_opts = [
+    # TODO(ipv6): consider changing default to '::' for ipv6, breaks ipv4-only
     cfg.HostAddressOpt('bind_host', default='0.0.0.0',
                        help="The host IP to bind to"),
     cfg.PortOpt('bind_port', default=1789,

devstack/plugin.sh

@@ -55,6 +55,7 @@ function configure_congress {
     cp -r $CONGRESS_DIR/library/* $CONGRESS_LIBRARY_DIR
 
     # Update either configuration file
+    iniset $CONGRESS_CONF DEFAULT bind_host $SERVICE_LISTEN_ADDRESS
     iniset $CONGRESS_CONF DEFAULT debug $ENABLE_DEBUG_LOG_LEVEL
     iniset $CONGRESS_CONF DEFAULT auth_strategy $CONGRESS_AUTH_STRATEGY
     iniset $CONGRESS_CONF DEFAULT datasource_sync_period 30