Merge "Support optimized cinder backend for glance"
diff --git a/.zuul.yaml b/.zuul.yaml
index 00129b5..517e12b 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -1,3 +1,11 @@
+- pragma:
+   # NOTE(gtema): this is required for the changes in SDK feature/r1 branch to
+   # be using devstack
+   # TODO(gtema): delete this once r1 branch is merged into master
+    implied-branches:
+      - master
+      - feature/r1
+
 - nodeset:
     name: openstack-single-node
     nodes:
@@ -49,10 +57,10 @@
           - controller
 
 - nodeset:
-    name: devstack-single-node-centos-8
+    name: devstack-single-node-centos-8-stream
     nodes:
       - name: controller
-        label: centos-8
+        label: centos-8-stream
     groups:
       - name: tempest
         nodes:
@@ -72,7 +80,7 @@
     name: devstack-single-node-fedora-latest
     nodes:
       - name: controller
-        label: fedora-32
+        label: fedora-34
     groups:
       - name: tempest
         nodes:
@@ -328,6 +336,7 @@
         /var/log/postgresql: logs
         /var/log/mysql: logs
         /var/log/libvirt: logs
+        /etc/libvirt: logs
         /etc/sudoers: logs
         /etc/sudoers.d: logs
         '{{ stage_dir }}/iptables.txt': logs
@@ -468,6 +477,7 @@
         SWIFT_HASH: 1234123412341234
         DEBUG_LIBVIRT_COREDUMPS: true
         NOVA_VNC_ENABLED: true
+        OVN_DBS_LOG_LEVEL: dbg
       devstack_local_conf:
         post-config:
           $NEUTRON_CONF:
@@ -496,13 +506,14 @@
         n-sch: true
         # Placement service
         placement-api: true
+        # OVN services
+        ovn-controller: true
+        ovn-northd: true
+        ovs-vswitchd: true
+        ovsdb-server: true
         # Neutron services
-        q-agt: true
-        q-dhcp: true
-        q-l3: true
-        q-meta: true
-        q-metering: true
         q-svc: true
+        q-ovn-metadata-agent: true
         # Swift services
         s-account: true
         s-container: true
@@ -534,8 +545,12 @@
           n-cpu: true
           # Placement services
           placement-client: true
+          # OVN services
+          ovn-controller: true
+          ovs-vswitchd: true
+          ovsdb-server: true
           # Neutron services
-          q-agt: true
+          q-ovn-metadata-agent: true
           # Cinder services
           c-bak: true
           c-vol: true
@@ -553,6 +568,7 @@
           GLANCE_HOSTPORT: "{{ hostvars['controller']['nodepool']['private_ipv4'] }}:9292"
           Q_HOST: "{{ hostvars['controller']['nodepool']['private_ipv4'] }}"
           NOVA_VNC_ENABLED: true
+          ENABLE_CHASSIS_AS_GW: false
 
 - job:
     name: devstack-ipv6
@@ -565,6 +581,17 @@
         SERVICE_HOST: ""
 
 - job:
+    name: devstack-enforce-scope
+    parent: devstack
+    description: |
+      This job runs the devstack with scope checks enabled.
+    vars:
+      devstack_localrc:
+        # Keep enabeling the services here to run with system scope
+        CINDER_ENFORCE_SCOPE: true
+        GLANCE_ENFORCE_SCOPE: true
+
+- job:
     name: devstack-multinode
     parent: devstack
     nodeset: openstack-two-node-focal
@@ -577,24 +604,14 @@
 # and these platforms don't have the round-the-clock support to avoid
 # becoming blockers in that situation.
 - job:
-    name: devstack-platform-centos-8
+    name: devstack-platform-centos-8-stream
     parent: tempest-full-py3
-    description: Centos 8 platform test
-    nodeset: devstack-single-node-centos-8
+    description: CentOS 8 Stream platform test
+    nodeset: devstack-single-node-centos-8-stream
     voting: false
     timeout: 9000
 
 - job:
-    name: devstack-platform-bionic
-    parent: tempest-full-py3
-    description: Ubuntu Bionic platform test
-    nodeset: openstack-single-node-bionic
-    voting: false
-    vars:
-      devstack_localrc:
-        CINDER_ISCSI_HELPER: tgtadm
-
-- job:
     name: devstack-async
     parent: tempest-full-py3
     description: Async mode enabled
@@ -606,6 +623,17 @@
         /opt/stack/async: logs
 
 - job:
+    name: devstack-no-tls-proxy
+    parent: tempest-full-py3
+    description: |
+      Tempest job with tls-proxy off.
+
+      Some gates run devstack like this and it follows different code paths.
+    vars:
+      devstack_services:
+        tls-proxy: false
+
+- job:
     name: devstack-platform-fedora-latest
     parent: tempest-full-py3
     description: Fedora latest platform test
@@ -678,6 +706,7 @@
 
 - job:
     name: devstack-unit-tests
+    nodeset: ubuntu-focal
     description: |
       Runs unit tests on devstack project.
 
@@ -693,9 +722,9 @@
       jobs:
         - devstack
         - devstack-ipv6
+        - devstack-enforce-scope
         - devstack-platform-fedora-latest
-        - devstack-platform-centos-8
-        - devstack-platform-bionic
+        - devstack-platform-centos-8-stream
         - devstack-async
         - devstack-multinode
         - devstack-unit-tests
@@ -714,11 +743,11 @@
             irrelevant-files:
               - ^.*\.rst$
               - ^doc/.*$
-        - neutron-grenade-multinode:
+        - neutron-ovs-grenade-multinode:
             irrelevant-files:
               - ^.*\.rst$
               - ^doc/.*$
-        - neutron-tempest-linuxbridge:
+        - neutron-linuxbridge-tempest:
             irrelevant-files:
               - ^.*\.rst$
               - ^doc/.*$
@@ -748,14 +777,15 @@
       jobs:
         - devstack
         - devstack-ipv6
+        - devstack-enforce-scope
         - devstack-multinode
         - devstack-unit-tests
         - openstack-tox-bashate
-        - neutron-grenade-multinode:
+        - neutron-ovs-grenade-multinode:
             irrelevant-files:
               - ^.*\.rst$
               - ^doc/.*$
-        - neutron-tempest-linuxbridge:
+        - neutron-linuxbridge-tempest:
             irrelevant-files:
               - ^.*\.rst$
               - ^doc/.*$
@@ -808,11 +838,11 @@
             irrelevant-files:
               - ^.*\.rst$
               - ^doc/.*$
-        - neutron-tempest-dvr:
+        - neutron-ovs-tempest-dvr:
             irrelevant-files:
               - ^.*\.rst$
               - ^doc/.*$
-        - neutron-tempest-dvr-ha-multinode-full:
+        - neutron-ovs-tempest-dvr-ha-multinode-full:
             irrelevant-files:
               - ^.*\.rst$
               - ^doc/.*$
@@ -825,3 +855,7 @@
               - ^.*\.rst$
               - ^doc/.*$
         - devstack-platform-fedora-latest-virt-preview
+        - devstack-no-tls-proxy
+    periodic:
+      jobs:
+        - devstack-no-tls-proxy
diff --git a/doc/source/configuration.rst b/doc/source/configuration.rst
index 2d0c894..6745614 100644
--- a/doc/source/configuration.rst
+++ b/doc/source/configuration.rst
@@ -689,6 +689,24 @@
 
     ENABLE_IDENTITY_V2=False
 
+
+Glance
+++++++
+
+The default image size quota of 1GiB may be too small if larger images
+are to be used. Change the default at setup time with:
+
+::
+
+    GLANCE_LIMIT_IMAGE_SIZE_TOTAL=5000
+
+or at runtime via:
+
+::
+
+    openstack --os-cloud devstack-system-admin registered limit update \
+      --service glance --default-limit 5000 --region RegionOne image_size_total
+
 .. _arch-configuration:
 
 Architectures
diff --git a/doc/source/contributor/contributing.rst b/doc/source/contributor/contributing.rst
index 5e0df56..4de238f 100644
--- a/doc/source/contributor/contributing.rst
+++ b/doc/source/contributor/contributing.rst
@@ -13,7 +13,7 @@
 
 Communication
 ~~~~~~~~~~~~~
-* IRC channel ``#openstack-qa`` at FreeNode
+* IRC channel ``#openstack-qa`` at OFTC.
 * Mailing list (prefix subjects with ``[qa][devstack]`` for faster responses)
   http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-discuss
 
diff --git a/doc/source/index.rst b/doc/source/index.rst
index 8b8acde..08ce4cb 100644
--- a/doc/source/index.rst
+++ b/doc/source/index.rst
@@ -40,7 +40,7 @@
 attempts to support the two latest LTS releases of Ubuntu, the
 latest/current Fedora version, CentOS/RHEL 8 and OpenSUSE.
 
-If you do not have a preference, Ubuntu 18.04 (Bionic Beaver) is the
+If you do not have a preference, Ubuntu 20.04 (Focal Fossa) is the
 most tested, and will probably go the smoothest.
 
 Add Stack User (optional)
@@ -63,7 +63,7 @@
 .. code-block:: console
 
     $ echo "stack ALL=(ALL) NOPASSWD: ALL" | sudo tee /etc/sudoers.d/stack
-    $ sudo su - stack
+    $ sudo -u stack -i
 
 Download DevStack
 -----------------
diff --git a/doc/source/plugin-registry.rst b/doc/source/plugin-registry.rst
index 4e7c2d7..490132e 100644
--- a/doc/source/plugin-registry.rst
+++ b/doc/source/plugin-registry.rst
@@ -24,6 +24,8 @@
 ======================================== ===
 Plugin Name                              URL
 ======================================== ===
+inspur/venus                             `https://opendev.org/inspur/venus <https://opendev.org/inspur/venus>`__
+inspur/venus-dashboard                   `https://opendev.org/inspur/venus-dashboard <https://opendev.org/inspur/venus-dashboard>`__
 openstack/aodh                           `https://opendev.org/openstack/aodh <https://opendev.org/openstack/aodh>`__
 openstack/barbican                       `https://opendev.org/openstack/barbican <https://opendev.org/openstack/barbican>`__
 openstack/blazar                         `https://opendev.org/openstack/blazar <https://opendev.org/openstack/blazar>`__
@@ -39,21 +41,18 @@
 openstack/devstack-plugin-kafka          `https://opendev.org/openstack/devstack-plugin-kafka <https://opendev.org/openstack/devstack-plugin-kafka>`__
 openstack/devstack-plugin-nfs            `https://opendev.org/openstack/devstack-plugin-nfs <https://opendev.org/openstack/devstack-plugin-nfs>`__
 openstack/devstack-plugin-open-cas       `https://opendev.org/openstack/devstack-plugin-open-cas <https://opendev.org/openstack/devstack-plugin-open-cas>`__
-openstack/devstack-plugin-pika           `https://opendev.org/openstack/devstack-plugin-pika <https://opendev.org/openstack/devstack-plugin-pika>`__
-openstack/devstack-plugin-zmq            `https://opendev.org/openstack/devstack-plugin-zmq <https://opendev.org/openstack/devstack-plugin-zmq>`__
 openstack/ec2-api                        `https://opendev.org/openstack/ec2-api <https://opendev.org/openstack/ec2-api>`__
 openstack/freezer                        `https://opendev.org/openstack/freezer <https://opendev.org/openstack/freezer>`__
 openstack/freezer-api                    `https://opendev.org/openstack/freezer-api <https://opendev.org/openstack/freezer-api>`__
 openstack/freezer-tempest-plugin         `https://opendev.org/openstack/freezer-tempest-plugin <https://opendev.org/openstack/freezer-tempest-plugin>`__
 openstack/freezer-web-ui                 `https://opendev.org/openstack/freezer-web-ui <https://opendev.org/openstack/freezer-web-ui>`__
+openstack/glance                         `https://opendev.org/openstack/glance <https://opendev.org/openstack/glance>`__
 openstack/heat                           `https://opendev.org/openstack/heat <https://opendev.org/openstack/heat>`__
 openstack/heat-dashboard                 `https://opendev.org/openstack/heat-dashboard <https://opendev.org/openstack/heat-dashboard>`__
 openstack/ironic                         `https://opendev.org/openstack/ironic <https://opendev.org/openstack/ironic>`__
 openstack/ironic-inspector               `https://opendev.org/openstack/ironic-inspector <https://opendev.org/openstack/ironic-inspector>`__
 openstack/ironic-prometheus-exporter     `https://opendev.org/openstack/ironic-prometheus-exporter <https://opendev.org/openstack/ironic-prometheus-exporter>`__
 openstack/ironic-ui                      `https://opendev.org/openstack/ironic-ui <https://opendev.org/openstack/ironic-ui>`__
-openstack/karbor                         `https://opendev.org/openstack/karbor <https://opendev.org/openstack/karbor>`__
-openstack/karbor-dashboard               `https://opendev.org/openstack/karbor-dashboard <https://opendev.org/openstack/karbor-dashboard>`__
 openstack/keystone                       `https://opendev.org/openstack/keystone <https://opendev.org/openstack/keystone>`__
 openstack/kuryr-kubernetes               `https://opendev.org/openstack/kuryr-kubernetes <https://opendev.org/openstack/kuryr-kubernetes>`__
 openstack/kuryr-libnetwork               `https://opendev.org/openstack/kuryr-libnetwork <https://opendev.org/openstack/kuryr-libnetwork>`__
@@ -65,21 +64,15 @@
 openstack/manila-ui                      `https://opendev.org/openstack/manila-ui <https://opendev.org/openstack/manila-ui>`__
 openstack/masakari                       `https://opendev.org/openstack/masakari <https://opendev.org/openstack/masakari>`__
 openstack/mistral                        `https://opendev.org/openstack/mistral <https://opendev.org/openstack/mistral>`__
-openstack/monasca-analytics              `https://opendev.org/openstack/monasca-analytics <https://opendev.org/openstack/monasca-analytics>`__
 openstack/monasca-api                    `https://opendev.org/openstack/monasca-api <https://opendev.org/openstack/monasca-api>`__
-openstack/monasca-ceilometer             `https://opendev.org/openstack/monasca-ceilometer <https://opendev.org/openstack/monasca-ceilometer>`__
 openstack/monasca-events-api             `https://opendev.org/openstack/monasca-events-api <https://opendev.org/openstack/monasca-events-api>`__
-openstack/monasca-log-api                `https://opendev.org/openstack/monasca-log-api <https://opendev.org/openstack/monasca-log-api>`__
 openstack/monasca-tempest-plugin         `https://opendev.org/openstack/monasca-tempest-plugin <https://opendev.org/openstack/monasca-tempest-plugin>`__
-openstack/monasca-transform              `https://opendev.org/openstack/monasca-transform <https://opendev.org/openstack/monasca-transform>`__
 openstack/murano                         `https://opendev.org/openstack/murano <https://opendev.org/openstack/murano>`__
 openstack/networking-bagpipe             `https://opendev.org/openstack/networking-bagpipe <https://opendev.org/openstack/networking-bagpipe>`__
 openstack/networking-baremetal           `https://opendev.org/openstack/networking-baremetal <https://opendev.org/openstack/networking-baremetal>`__
 openstack/networking-bgpvpn              `https://opendev.org/openstack/networking-bgpvpn <https://opendev.org/openstack/networking-bgpvpn>`__
 openstack/networking-generic-switch      `https://opendev.org/openstack/networking-generic-switch <https://opendev.org/openstack/networking-generic-switch>`__
 openstack/networking-hyperv              `https://opendev.org/openstack/networking-hyperv <https://opendev.org/openstack/networking-hyperv>`__
-openstack/networking-l2gw                `https://opendev.org/openstack/networking-l2gw <https://opendev.org/openstack/networking-l2gw>`__
-openstack/networking-midonet             `https://opendev.org/openstack/networking-midonet <https://opendev.org/openstack/networking-midonet>`__
 openstack/networking-odl                 `https://opendev.org/openstack/networking-odl <https://opendev.org/openstack/networking-odl>`__
 openstack/networking-powervm             `https://opendev.org/openstack/networking-powervm <https://opendev.org/openstack/networking-powervm>`__
 openstack/networking-sfc                 `https://opendev.org/openstack/networking-sfc <https://opendev.org/openstack/networking-sfc>`__
@@ -93,24 +86,19 @@
 openstack/octavia-dashboard              `https://opendev.org/openstack/octavia-dashboard <https://opendev.org/openstack/octavia-dashboard>`__
 openstack/octavia-tempest-plugin         `https://opendev.org/openstack/octavia-tempest-plugin <https://opendev.org/openstack/octavia-tempest-plugin>`__
 openstack/openstacksdk                   `https://opendev.org/openstack/openstacksdk <https://opendev.org/openstack/openstacksdk>`__
-openstack/os-loganalyze                  `https://opendev.org/openstack/os-loganalyze <https://opendev.org/openstack/os-loganalyze>`__
 openstack/osprofiler                     `https://opendev.org/openstack/osprofiler <https://opendev.org/openstack/osprofiler>`__
 openstack/oswin-tempest-plugin           `https://opendev.org/openstack/oswin-tempest-plugin <https://opendev.org/openstack/oswin-tempest-plugin>`__
 openstack/ovn-octavia-provider           `https://opendev.org/openstack/ovn-octavia-provider <https://opendev.org/openstack/ovn-octavia-provider>`__
-openstack/panko                          `https://opendev.org/openstack/panko <https://opendev.org/openstack/panko>`__
 openstack/patrole                        `https://opendev.org/openstack/patrole <https://opendev.org/openstack/patrole>`__
-openstack/qinling                        `https://opendev.org/openstack/qinling <https://opendev.org/openstack/qinling>`__
-openstack/qinling-dashboard              `https://opendev.org/openstack/qinling-dashboard <https://opendev.org/openstack/qinling-dashboard>`__
 openstack/rally-openstack                `https://opendev.org/openstack/rally-openstack <https://opendev.org/openstack/rally-openstack>`__
 openstack/sahara                         `https://opendev.org/openstack/sahara <https://opendev.org/openstack/sahara>`__
 openstack/sahara-dashboard               `https://opendev.org/openstack/sahara-dashboard <https://opendev.org/openstack/sahara-dashboard>`__
-openstack/searchlight                    `https://opendev.org/openstack/searchlight <https://opendev.org/openstack/searchlight>`__
-openstack/searchlight-ui                 `https://opendev.org/openstack/searchlight-ui <https://opendev.org/openstack/searchlight-ui>`__
 openstack/senlin                         `https://opendev.org/openstack/senlin <https://opendev.org/openstack/senlin>`__
 openstack/shade                          `https://opendev.org/openstack/shade <https://opendev.org/openstack/shade>`__
 openstack/solum                          `https://opendev.org/openstack/solum <https://opendev.org/openstack/solum>`__
 openstack/storlets                       `https://opendev.org/openstack/storlets <https://opendev.org/openstack/storlets>`__
 openstack/tacker                         `https://opendev.org/openstack/tacker <https://opendev.org/openstack/tacker>`__
+openstack/tap-as-a-service               `https://opendev.org/openstack/tap-as-a-service <https://opendev.org/openstack/tap-as-a-service>`__
 openstack/telemetry-tempest-plugin       `https://opendev.org/openstack/telemetry-tempest-plugin <https://opendev.org/openstack/telemetry-tempest-plugin>`__
 openstack/trove                          `https://opendev.org/openstack/trove <https://opendev.org/openstack/trove>`__
 openstack/trove-dashboard                `https://opendev.org/openstack/trove-dashboard <https://opendev.org/openstack/trove-dashboard>`__
@@ -143,6 +131,7 @@
 x/devstack-plugin-hdfs                   `https://opendev.org/x/devstack-plugin-hdfs <https://opendev.org/x/devstack-plugin-hdfs>`__
 x/devstack-plugin-libvirt-qemu           `https://opendev.org/x/devstack-plugin-libvirt-qemu <https://opendev.org/x/devstack-plugin-libvirt-qemu>`__
 x/devstack-plugin-mariadb                `https://opendev.org/x/devstack-plugin-mariadb <https://opendev.org/x/devstack-plugin-mariadb>`__
+x/devstack-plugin-tobiko                 `https://opendev.org/x/devstack-plugin-tobiko <https://opendev.org/x/devstack-plugin-tobiko>`__
 x/devstack-plugin-vmax                   `https://opendev.org/x/devstack-plugin-vmax <https://opendev.org/x/devstack-plugin-vmax>`__
 x/drbd-devstack                          `https://opendev.org/x/drbd-devstack <https://opendev.org/x/drbd-devstack>`__
 x/fenix                                  `https://opendev.org/x/fenix <https://opendev.org/x/fenix>`__
@@ -169,6 +158,7 @@
 x/networking-hpe                         `https://opendev.org/x/networking-hpe <https://opendev.org/x/networking-hpe>`__
 x/networking-huawei                      `https://opendev.org/x/networking-huawei <https://opendev.org/x/networking-huawei>`__
 x/networking-infoblox                    `https://opendev.org/x/networking-infoblox <https://opendev.org/x/networking-infoblox>`__
+x/networking-l2gw                        `https://opendev.org/x/networking-l2gw <https://opendev.org/x/networking-l2gw>`__
 x/networking-lagopus                     `https://opendev.org/x/networking-lagopus <https://opendev.org/x/networking-lagopus>`__
 x/networking-mlnx                        `https://opendev.org/x/networking-mlnx <https://opendev.org/x/networking-mlnx>`__
 x/networking-nec                         `https://opendev.org/x/networking-nec <https://opendev.org/x/networking-nec>`__
@@ -190,10 +180,8 @@
 x/scalpels                               `https://opendev.org/x/scalpels <https://opendev.org/x/scalpels>`__
 x/slogging                               `https://opendev.org/x/slogging <https://opendev.org/x/slogging>`__
 x/stackube                               `https://opendev.org/x/stackube <https://opendev.org/x/stackube>`__
-x/tap-as-a-service                       `https://opendev.org/x/tap-as-a-service <https://opendev.org/x/tap-as-a-service>`__
 x/tap-as-a-service-dashboard             `https://opendev.org/x/tap-as-a-service-dashboard <https://opendev.org/x/tap-as-a-service-dashboard>`__
 x/tatu                                   `https://opendev.org/x/tatu <https://opendev.org/x/tatu>`__
-x/tobiko                                 `https://opendev.org/x/tobiko <https://opendev.org/x/tobiko>`__
 x/trio2o                                 `https://opendev.org/x/trio2o <https://opendev.org/x/trio2o>`__
 x/valet                                  `https://opendev.org/x/valet <https://opendev.org/x/valet>`__
 x/vmware-nsx                             `https://opendev.org/x/vmware-nsx <https://opendev.org/x/vmware-nsx>`__
diff --git a/files/apts b/files/apts
deleted file mode 120000
index ef926de..0000000
--- a/files/apts
+++ /dev/null
@@ -1 +0,0 @@
-debs/
\ No newline at end of file
diff --git a/files/debs/dstat b/files/debs/dstat
index 2b643b8..40d00f4 100644
--- a/files/debs/dstat
+++ b/files/debs/dstat
@@ -1 +1,2 @@
-dstat
+dstat # dist:bionic
+pcp
diff --git a/files/rpms/swift b/files/rpms/swift
index 376c6f3..18c957c 100644
--- a/files/rpms/swift
+++ b/files/rpms/swift
@@ -4,4 +4,4 @@
 rsync-daemon
 sqlite
 xfsprogs
-xinetd
+xinetd # not:f34
diff --git a/functions-common b/functions-common
index 340da75..11679e4 100644
--- a/functions-common
+++ b/functions-common
@@ -1037,6 +1037,11 @@
     return 1
 }
 
+function is_ironic_enforce_scope {
+    is_service_enabled ironic && [[ "$IRONIC_ENFORCE_SCOPE" == "True" ]] && return 0
+    return 1
+}
+
 
 # Package Functions
 # =================
diff --git a/inc/python b/inc/python
index 8941fd0..9382d35 100644
--- a/inc/python
+++ b/inc/python
@@ -378,12 +378,13 @@
     project_dir=$(cd $project_dir && pwd)
 
     if [ -n "$REQUIREMENTS_DIR" ]; then
-        # Constrain this package to this project directory from here on out.
+        # Remove this package from constraints before we install it.
+        # That way, later installs won't "downgrade" the install from
+        # source we are about to do.
         local name
         name=$(awk '/^name.*=/ {print $3}' $project_dir/setup.cfg)
         $REQUIREMENTS_DIR/.venv/bin/edit-constraints \
-            $REQUIREMENTS_DIR/upper-constraints.txt -- $name \
-            "$flags file://$project_dir#egg=$name"
+            $REQUIREMENTS_DIR/upper-constraints.txt -- $name
     fi
 
     setup_package $bindep $project_dir "$flags" $extras
diff --git a/lib/apache b/lib/apache
index 870a65a..04259ba 100644
--- a/lib/apache
+++ b/lib/apache
@@ -93,9 +93,6 @@
 
     if is_ubuntu; then
         local pkg_list="uwsgi uwsgi-plugin-python3 libapache2-mod-proxy-uwsgi"
-        if [[ "$DISTRO" == 'bionic' ]]; then
-            pkg_list="${pkg_list} uwsgi-plugin-python"
-        fi
         install_package ${pkg_list}
     elif is_fedora; then
         # Note httpd comes with mod_proxy_uwsgi and it is loaded by
diff --git a/lib/cinder b/lib/cinder
index fca01a2..f3e2430 100644
--- a/lib/cinder
+++ b/lib/cinder
@@ -91,12 +91,6 @@
 # Default to lioadm
 CINDER_ISCSI_HELPER=${CINDER_ISCSI_HELPER:-lioadm}
 
-# Bionic needs to default to tgtadm until support is dropped within devstack
-# as the rtslib-fb-targetctl service doesn't start after installing lioadm.
-if is_ubuntu && [[ "$DISTRO" == "bionic" ]]; then
-    CINDER_ISCSI_HELPER=tgtadm
-fi
-
 # EL and SUSE should only use lioadm
 if is_fedora || is_suse; then
     if [[ ${CINDER_ISCSI_HELPER} != "lioadm" ]]; then
@@ -166,6 +160,12 @@
 # enable the cache for all cinder backends.
 CINDER_CACHE_ENABLED_FOR_BACKENDS=${CINDER_CACHE_ENABLED_FOR_BACKENDS:-$CINDER_ENABLED_BACKENDS}
 
+# Flag to set the oslo_policy.enforce_scope. This is used to switch
+# the  Volume API policies to start checking the scope of token. by default,
+# this flag is False.
+# For more detail: https://docs.openstack.org/oslo.policy/latest/configuration/index.html#oslo_policy.enforce_scope
+CINDER_ENFORCE_SCOPE=$(trueorfalse False CINDER_ENFORCE_SCOPE)
+
 # Functions
 # ---------
 
@@ -372,6 +372,11 @@
     elif is_service_enabled etcd3; then
         iniset $CINDER_CONF coordination backend_url "etcd3+http://${SERVICE_HOST}:$ETCD_PORT"
     fi
+
+    if [[ "$CINDER_ENFORCE_SCOPE" == True ]] ; then
+        iniset $CINDER_CONF oslo_policy enforce_scope true
+        iniset $CINDER_CONF oslo_policy enforce_new_defaults true
+    fi
 }
 
 # create_cinder_accounts() - Set up common required cinder accounts
@@ -395,12 +400,6 @@
                 "$REGION_NAME" \
                 "$CINDER_SERVICE_PROTOCOL://$CINDER_SERVICE_HOST:$CINDER_SERVICE_PORT/v3/\$(project_id)s"
 
-            get_or_create_service "cinderv2" "volumev2" "Cinder Volume Service V2"
-            get_or_create_endpoint \
-                "volumev2" \
-                "$REGION_NAME" \
-                "$CINDER_SERVICE_PROTOCOL://$CINDER_SERVICE_HOST:$CINDER_SERVICE_PORT/v2/\$(project_id)s"
-
             get_or_create_service "cinderv3" "volumev3" "Cinder Volume Service V3"
             get_or_create_endpoint \
                 "volumev3" \
@@ -412,12 +411,6 @@
                 "$REGION_NAME" \
                 "$CINDER_SERVICE_PROTOCOL://$CINDER_SERVICE_HOST/volume/v3/\$(project_id)s"
 
-            get_or_create_service "cinderv2" "volumev2" "Cinder Volume Service V2"
-            get_or_create_endpoint \
-                "volumev2" \
-                "$REGION_NAME" \
-                "$CINDER_SERVICE_PROTOCOL://$CINDER_SERVICE_HOST/volume/v2/\$(project_id)s"
-
             get_or_create_service "cinderv3" "volumev3" "Cinder Volume Service V3"
             get_or_create_endpoint \
                 "volumev3" \
diff --git a/lib/cinder_backends/ceph_iscsi b/lib/cinder_backends/ceph_iscsi
new file mode 100644
index 0000000..94412e0
--- /dev/null
+++ b/lib/cinder_backends/ceph_iscsi
@@ -0,0 +1,56 @@
+#!/bin/bash
+#
+# lib/cinder_backends/ceph_iscsi
+# Configure the ceph_iscsi backend
+
+# Enable with:
+#
+#   CINDER_ENABLED_BACKENDS+=,ceph_iscsi:ceph_iscsi
+#
+# Optional paramteters:
+#   CEPH_ISCSI_API_URL=<url to the rbd-target-api service>
+#
+# Dependencies:
+#
+# - ``functions`` file
+# - ``cinder`` configurations
+
+# configure_ceph_backend_ceph_iscsi - called from configure_cinder()
+
+
+# Save trace setting
+_XTRACE_CINDER_CEPH_ISCSI=$(set +o | grep xtrace)
+set +o xtrace
+
+# Entry Points
+# ------------
+
+# configure_cinder_backend_ceph_iscsi - Set config files, create data dirs, etc
+# configure_cinder_backend_ceph_iscsi $name
+function configure_cinder_backend_ceph_iscsi {
+    local be_name=$1
+
+    CEPH_ISCSI_API_URL=${CEPH_ISCSI_API_URL:-http://$CEPH_ISCSI_API_HOST:$CEPH_ISCSI_API_PORT}
+
+    iniset $CINDER_CONF $be_name volume_backend_name $be_name
+    iniset $CINDER_CONF $be_name volume_driver "cinder.volume.drivers.ceph.rbd_iscsi.RBDISCSIDriver"
+    iniset $CINDER_CONF $be_name rbd_ceph_conf "$CEPH_CONF_FILE"
+    iniset $CINDER_CONF $be_name rbd_pool "$CINDER_CEPH_POOL"
+    iniset $CINDER_CONF $be_name rbd_user "$CINDER_CEPH_USER"
+    iniset $CINDER_CONF $be_name rbd_iscsi_api_user "$CEPH_ISCSI_API_USER"
+    iniset $CINDER_CONF $be_name rbd_iscsi_api_password "$CEPH_ISCSI_API_PASSWORD"
+    iniset $CINDER_CONF $be_name rbd_iscsi_api_url "$CEPH_ISCSI_API_URL"
+    iniset $CINDER_CONF $be_name rbd_iscsi_target_iqn "$CEPH_ISCSI_TARGET_IQN"
+    iniset $CINDER_CONF $be_name rbd_flatten_volume_from_snapshot False
+    iniset $CINDER_CONF $be_name rbd_max_clone_depth 5
+    iniset $CINDER_CONF DEFAULT glance_api_version 2
+
+    pip_install rbd-iscsi-client
+}
+
+# Restore xtrace
+$_XTRACE_CINDER_CEPH_ISCSI
+
+# Local variables:
+# mode: shell-script
+# End:
diff --git a/lib/glance b/lib/glance
index 118fa7c..9111146 100644
--- a/lib/glance
+++ b/lib/glance
@@ -96,6 +96,13 @@
 GLANCE_TASKS_DIR=${GLANCE_MULTISTORE_FILE_IMAGE_DIR:=$DATA_DIR/os_glance_tasks_store}
 
 GLANCE_USE_IMPORT_WORKFLOW=$(trueorfalse False GLANCE_USE_IMPORT_WORKFLOW)
+GLANCE_ENABLE_QUOTAS=$(trueorfalse True GLANCE_ENABLE_QUOTAS)
+
+# Flag to set the oslo_policy.enforce_scope. This is used to switch
+# the Image API policies to start checking the scope of token. By Default,
+# this flag is False.
+# For more detail: https://docs.openstack.org/oslo.policy/latest/configuration/index.html#oslo_policy.enforce_scope
+GLANCE_ENFORCE_SCOPE=$(trueorfalse False GLANCE_ENFORCE_SCOPE)
 
 GLANCE_CONF_DIR=${GLANCE_CONF_DIR:-/etc/glance}
 GLANCE_METADEF_DIR=$GLANCE_CONF_DIR/metadefs
@@ -119,6 +126,10 @@
 GLANCE_SERVICE_PROTOCOL=${GLANCE_SERVICE_PROTOCOL:-$SERVICE_PROTOCOL}
 GLANCE_UWSGI=$GLANCE_BIN_DIR/glance-wsgi-api
 GLANCE_UWSGI_CONF=$GLANCE_CONF_DIR/glance-uwsgi.ini
+
+# Glance default limit for Devstack
+GLANCE_LIMIT_IMAGE_SIZE_TOTAL=${GLANCE_LIMIT_IMAGE_SIZE_TOTAL:-1000}
+
 # If wsgi mode is uwsgi run glance under uwsgi, else default to eventlet
 # TODO(mtreinish): Remove the eventlet path here and in all the similar
 # conditionals below after the Pike release
@@ -275,6 +286,45 @@
     fi
 }
 
+function configure_glance_quotas {
+
+    # NOTE(danms): We need to have some of the OS_ things unset in
+    # order to use system scope, which is required for creating these
+    # limits. This is a hack, but I dunno how else to get osc to use
+    # system scope.
+
+    bash -c "unset OS_USERNAME OS_TENANT_NAME OS_PROJECT_NAME;
+        openstack --os-cloud devstack-system-admin registered limit create \
+                --service glance --default-limit $GLANCE_LIMIT_IMAGE_SIZE_TOTAL \
+                --region $REGION_NAME image_size_total; \
+        openstack --os-cloud devstack-system-admin registered limit create \
+                --service glance --default-limit $GLANCE_LIMIT_IMAGE_SIZE_TOTAL \
+                --region $REGION_NAME image_stage_total; \
+        openstack --os-cloud devstack-system-admin registered limit create \
+                --service glance --default-limit 100 --region $REGION_NAME \
+                image_count_total; \
+        openstack --os-cloud devstack-system-admin registered limit create \
+                --service glance --default-limit 100 --region $REGION_NAME \
+                image_count_uploading"
+
+    # Tell glance to use these limits
+    iniset $GLANCE_API_CONF DEFAULT use_keystone_limits True
+
+    # Configure oslo_limit so it can talk to keystone
+    iniset $GLANCE_API_CONF oslo_limit user_domain_name $SERVICE_DOMAIN_NAME
+    iniset $GLANCE_API_CONF oslo_limit password $SERVICE_PASSWORD
+    iniset $GLANCE_API_CONF oslo_limit username glance
+    iniset $GLANCE_API_CONF oslo_limit auth_type password
+    iniset $GLANCE_API_CONF oslo_limit auth_url $KEYSTONE_SERVICE_URI
+    iniset $GLANCE_API_CONF oslo_limit system_scope "'all'"
+    iniset $GLANCE_API_CONF oslo_limit endpoint_id \
+           $(openstack endpoint list --service glance -f value -c ID)
+
+    # Allow the glance service user to read quotas
+    openstack role add --user glance --user-domain Default --system all \
+              reader
+}
+
 # configure_glance() - Set config files, create data dirs, etc
 function configure_glance {
     sudo install -d -o $STACK_USER $GLANCE_CONF_DIR $GLANCE_METADEF_DIR
@@ -388,6 +438,12 @@
         iniset $GLANCE_API_CONF DEFAULT bind_port $GLANCE_SERVICE_PORT_INT
         iniset $GLANCE_API_CONF DEFAULT workers "$API_WORKERS"
     fi
+
+    if [[ "$GLANCE_ENFORCE_SCOPE" == True ]] ; then
+        iniset $GLANCE_API_CONF oslo_policy enforce_scope true
+        iniset $GLANCE_API_CONF oslo_policy enforce_new_defaults true
+        iniset $GLANCE_API_CONF DEFAULT enforce_secure_rbac true
+    fi
 }
 
 # create_glance_accounts() - Set up common required glance accounts
@@ -418,6 +474,11 @@
         service_domain_id=$(get_or_create_domain $SERVICE_DOMAIN_NAME)
         iniset $GLANCE_SWIFT_STORE_CONF ref1 project_domain_id $service_domain_id
         iniset $GLANCE_SWIFT_STORE_CONF ref1 user_domain_id $service_domain_id
+
+        if [[ "$GLANCE_ENABLE_QUOTAS" = True ]]; then
+            configure_glance_quotas
+        fi
+
     fi
 }
 
diff --git a/lib/libraries b/lib/libraries
old mode 100644
new mode 100755
index c7aa815..67ff21f
--- a/lib/libraries
+++ b/lib/libraries
@@ -59,6 +59,7 @@
 # Non oslo libraries are welcomed below as well, this prevents
 # duplication of this code.
 GITDIR["os-brick"]=$DEST/os-brick
+GITDIR["os-resource-classes"]=$DEST/os-resource-classes
 GITDIR["os-traits"]=$DEST/os-traits
 
 # Support entry points installation of console scripts
@@ -122,6 +123,7 @@
     #
     # os-traits for nova
     _install_lib_from_source "os-brick"
+    _install_lib_from_source "os-resource-classes"
     _install_lib_from_source "os-traits"
     #
     # python client libraries we might need from git can go here
diff --git a/lib/neutron_plugins/ml2 b/lib/neutron_plugins/ml2
index ae4b251..e1f868f 100644
--- a/lib/neutron_plugins/ml2
+++ b/lib/neutron_plugins/ml2
@@ -7,15 +7,16 @@
 _XTRACE_NEUTRON_ML2=$(set +o | grep xtrace)
 set +o xtrace
 
-# Default openvswitch L2 agent
-Q_AGENT=${Q_AGENT:-openvswitch}
+# Default OVN L2 agent
+Q_AGENT=${Q_AGENT:-ovn}
 if [ -f $TOP_DIR/lib/neutron_plugins/${Q_AGENT}_agent ]; then
     source $TOP_DIR/lib/neutron_plugins/${Q_AGENT}_agent
 fi
 
 # Enable this to simply and quickly enable tunneling with ML2.
-# Select either 'gre', 'vxlan', or 'gre,vxlan'
-Q_ML2_TENANT_NETWORK_TYPE=${Q_ML2_TENANT_NETWORK_TYPE:-"vxlan"}
+# For ML2/OVS select either 'gre', 'vxlan', or 'gre,vxlan'.
+# For ML2/OVN use 'geneve'.
+Q_ML2_TENANT_NETWORK_TYPE=${Q_ML2_TENANT_NETWORK_TYPE:-"geneve"}
 # This has to be set here since the agent will set this in the config file
 if [[ "$Q_ML2_TENANT_NETWORK_TYPE" == "gre" || "$Q_ML2_TENANT_NETWORK_TYPE" == "vxlan" ]]; then
     Q_TUNNEL_TYPES=$Q_ML2_TENANT_NETWORK_TYPE
@@ -24,7 +25,7 @@
 fi
 
 # List of MechanismDrivers to load
-Q_ML2_PLUGIN_MECHANISM_DRIVERS=${Q_ML2_PLUGIN_MECHANISM_DRIVERS:-openvswitch,linuxbridge}
+Q_ML2_PLUGIN_MECHANISM_DRIVERS=${Q_ML2_PLUGIN_MECHANISM_DRIVERS:-ovn}
 # Default GRE TypeDriver options
 Q_ML2_PLUGIN_GRE_TYPE_OPTIONS=${Q_ML2_PLUGIN_GRE_TYPE_OPTIONS:-tunnel_id_ranges=$TENANT_TUNNEL_RANGES}
 # Default VXLAN TypeDriver options
diff --git a/lib/neutron_plugins/ovn_agent b/lib/neutron_plugins/ovn_agent
index e4d0d75..cfcb01e 100644
--- a/lib/neutron_plugins/ovn_agent
+++ b/lib/neutron_plugins/ovn_agent
@@ -21,9 +21,8 @@
 source ${TOP_DIR}/lib/neutron_plugins/ovs_base
 source ${TOP_DIR}/lib/neutron_plugins/openvswitch_agent
 
-# Load devstack ovs base functions
-source $NEUTRON_DIR/devstack/lib/ovs
-
+# Load devstack ovs compliation and loading functions
+source ${TOP_DIR}/lib/neutron_plugins/ovs_source
 
 # Defaults
 # --------
@@ -88,12 +87,19 @@
 # configure the MTU DHCP option.
 OVN_GENEVE_OVERHEAD=${OVN_GENEVE_OVERHEAD:-38}
 
-# The log level of the OVN databases (north and south)
+# The log level of the OVN databases (north and south).
+# Supported log levels are: off, emer, err, warn, info or dbg.
+# More information about log levels can be found at
+# http://www.openvswitch.org/support/dist-docs/ovs-appctl.8.txt
 OVN_DBS_LOG_LEVEL=${OVN_DBS_LOG_LEVEL:-info}
 
 OVN_META_CONF=$NEUTRON_CONF_DIR/neutron_ovn_metadata_agent.ini
 OVN_META_DATA_HOST=${OVN_META_DATA_HOST:-$(ipv6_unquote $SERVICE_HOST)}
 
+# If True (default) the node will be considered a gateway node.
+ENABLE_CHASSIS_AS_GW=$(trueorfalse True ENABLE_CHASSIS_AS_GW)
+OVN_L3_CREATE_PUBLIC_NETWORK=$(trueorfalse True OVN_L3_CREATE_PUBLIC_NETWORK)
+
 export OVSDB_SERVER_LOCAL_HOST=$SERVICE_LOCAL_HOST
 if [[ "$SERVICE_IP_VERSION" == 6 ]]; then
     OVSDB_SERVER_LOCAL_HOST=[$OVSDB_SERVER_LOCAL_HOST]
@@ -171,6 +177,9 @@
 }
 
 function use_new_ovn_repository {
+    if [[ "$OVN_BUILD_FROM_SOURCE" == "False" ]]; then
+        return 0
+    fi
     if [ -z "$is_new_ovn" ]; then
         local ovs_repo_dir=$DEST/$OVS_REPO_NAME
         if [ ! -d $ovs_repo_dir ]; then
@@ -253,48 +262,10 @@
     ERROR_ON_CLONE=false git_clone $repo $dir $branch
 }
 
-function get_ext_gw_interface {
-    # Get ext_gw_interface depending on value of Q_USE_PUBLIC_VETH
-    # This function is copied directly from the devstack neutron-legacy script
-    if [[ "$Q_USE_PUBLIC_VETH" == "True" ]]; then
-        echo $Q_PUBLIC_VETH_EX
-    else
-        # Disable in-band as we are going to use local port
-        # to communicate with VMs
-        sudo ovs-vsctl set Bridge $PUBLIC_BRIDGE \
-            other_config:disable-in-band=true
-        echo $PUBLIC_BRIDGE
-    fi
-}
-
 function create_public_bridge {
     # Create the public bridge that OVN will use
-    # This logic is based on the devstack neutron-legacy _neutron_configure_router_v4 and _v6
-    local ext_gw_ifc
-    ext_gw_ifc=$(get_ext_gw_interface)
-
-    sudo ovs-vsctl --may-exist add-br $ext_gw_ifc -- set bridge $ext_gw_ifc protocols=OpenFlow13,OpenFlow15
-    sudo ovs-vsctl set open . external-ids:ovn-bridge-mappings=$PHYSICAL_NETWORK:$ext_gw_ifc
-    if [ -n "$FLOATING_RANGE" ]; then
-        local cidr_len=${FLOATING_RANGE#*/}
-        sudo ip addr replace $PUBLIC_NETWORK_GATEWAY/$cidr_len dev $ext_gw_ifc
-    fi
-
-    # Ensure IPv6 RAs are accepted on the interface with the default route.
-    # This is needed for neutron-based devstack clouds to work in
-    # IPv6-only clouds in the gate. Please do not remove this without
-    # talking to folks in Infra. This fix is based on a devstack fix for
-    # neutron L3 agent: https://review.openstack.org/#/c/359490/.
-    default_route_dev=$(ip route | grep ^default | awk '{print $5}')
-    sudo sysctl -w net.ipv6.conf.$default_route_dev.accept_ra=2
-
-    sudo sysctl -w net.ipv6.conf.all.forwarding=1
-    if [ -n "$IPV6_PUBLIC_RANGE" ]; then
-        local ipv6_cidr_len=${IPV6_PUBLIC_RANGE#*/}
-        sudo ip -6 addr replace $IPV6_PUBLIC_NETWORK_GATEWAY/$ipv6_cidr_len dev $ext_gw_ifc
-    fi
-
-    sudo ip link set $ext_gw_ifc up
+    sudo ovs-vsctl --may-exist add-br $PUBLIC_BRIDGE -- set bridge $PUBLIC_BRIDGE protocols=OpenFlow13,OpenFlow15
+    sudo ovs-vsctl set open . external-ids:ovn-bridge-mappings=$PHYSICAL_NETWORK:$PUBLIC_BRIDGE
 }
 
 function _disable_libvirt_apparmor {
diff --git a/lib/neutron_plugins/ovs_source b/lib/neutron_plugins/ovs_source
new file mode 100644
index 0000000..294171f
--- /dev/null
+++ b/lib/neutron_plugins/ovs_source
@@ -0,0 +1,215 @@
+#!/bin/bash
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+# Defaults
+# --------
+
+# Set variables for building OVS from source
+OVS_REPO=${OVS_REPO:-https://github.com/openvswitch/ovs.git}
+OVS_REPO_NAME=$(basename ${OVS_REPO} | cut -f1 -d'.')
+OVS_REPO_NAME=${OVS_REPO_NAME:-ovs}
+OVS_BRANCH=${OVS_BRANCH:-0047ca3a0290f1ef954f2c76b31477cf4b9755f5}
+
+# Functions
+
+# load_module() - Load module using modprobe module given by argument and dies
+#                 on failure
+#               - fatal argument is optional and says whether function should
+#                 exit if module can't be loaded
+function load_module {
+    local module=$1
+    local fatal=$2
+
+    if [ "$(trueorfalse True fatal)" == "True" ]; then
+        sudo modprobe $module || (dmesg && die $LINENO "FAILED TO LOAD $module")
+    else
+        sudo modprobe $module || (echo "FAILED TO LOAD $module" && dmesg)
+    fi
+}
+
+# prepare_for_compilation() - Fetch ovs git repository and install packages needed for
+#                             compilation.
+function prepare_for_ovs_compilation {
+    local build_modules=${1:-False}
+    OVS_DIR=$DEST/$OVS_REPO_NAME
+
+    if [ ! -d $OVS_DIR ] ; then
+        # We can't use git_clone here because we want to ignore ERROR_ON_CLONE
+        git_timed clone $OVS_REPO $OVS_DIR
+        cd $OVS_DIR
+        git checkout $OVS_BRANCH
+    else
+        # Even though the directory already exists, call git_clone to update it
+        # if needed based on the RECLONE option
+        git_clone $OVS_REPO $OVS_DIR $OVS_BRANCH
+        cd $OVS_DIR
+    fi
+
+    # TODO: Can you create package list files like you can inside devstack?
+    install_package autoconf automake libtool gcc patch make
+
+    # If build_modules is False, we don't need to install the kernel-*
+    # packages. Just return.
+    if [[ "$build_modules" == "False" ]]; then
+        return
+    fi
+
+    KERNEL_VERSION=`uname -r`
+    if is_fedora ; then
+        # is_fedora covers Fedora, RHEL, CentOS, etc...
+        if [[ "$os_VENDOR" == "Fedora" ]]; then
+            install_package elfutils-libelf-devel
+            KERNEL_VERSION=`echo $KERNEL_VERSION | cut --delimiter='-' --field 1`
+        elif [[ ${KERNEL_VERSION:0:2} != "3." ]]; then
+            # dash is illegal character in rpm version so replace
+            # them with underscore like it is done in the kernel
+            # https://github.com/torvalds/linux/blob/master/scripts/package/mkspec#L25
+            # but only for latest series of the kernel, not 3.x
+
+            KERNEL_VERSION=`echo $KERNEL_VERSION | tr - _`
+        fi
+
+        echo NOTE: if kernel-devel-$KERNEL_VERSION or kernel-headers-$KERNEL_VERSION installation
+        echo failed, please, provide a repository with the package, or yum update / reboot
+        echo your machine to get the latest kernel.
+
+        install_package kernel-devel-$KERNEL_VERSION
+        install_package kernel-headers-$KERNEL_VERSION
+
+    elif is_ubuntu ; then
+        install_package linux-headers-$KERNEL_VERSION
+    fi
+}
+
+# load_ovs_kernel_modules() - load openvswitch kernel module
+function load_ovs_kernel_modules {
+    load_module openvswitch
+    load_module vport-geneve False
+    dmesg | tail
+}
+
+# reload_ovs_kernel_modules() - reload openvswitch kernel module
+function reload_ovs_kernel_modules {
+    set +e
+    ovs_system=$(sudo ovs-dpctl dump-dps | grep ovs-system)
+    if [ -n "$ovs_system" ]; then
+        sudo ovs-dpctl del-dp ovs-system
+    fi
+    set -e
+    sudo modprobe -r vport_geneve
+    sudo modprobe -r openvswitch
+    load_ovs_kernel_modules
+}
+
+# compile_ovs() - Compile OVS from source and load needed modules.
+#                 Accepts two parameters:
+#                   - first one is False by default and means that modules are not built and installed.
+#                   - second optional parameter defines prefix for ovs compilation
+#                   - third optional parameter defines localstatedir for ovs single machine runtime
+#                 Env variables OVS_REPO_NAME, OVS_REPO and OVS_BRANCH must be set
+function compile_ovs {
+    local _pwd=$PWD
+    local build_modules=${1:-False}
+    local prefix=$2
+    local localstatedir=$3
+
+    if [ -n "$prefix" ]; then
+        prefix="--prefix=$prefix"
+    fi
+
+    if [ -n "$localstatedir" ]; then
+        localstatedir="--localstatedir=$localstatedir"
+    fi
+
+    prepare_for_ovs_compilation $build_modules
+
+    KERNEL_VERSION=$(uname -r)
+    major_version=$(echo "${KERNEL_VERSION}" | cut -d '.' -f1)
+    patch_level=$(echo "${KERNEL_VERSION}" | cut -d '.' -f2)
+    if [ "${major_version}" -gt 5 ] || [ "${major_version}" == 5 ] && [ "${patch_level}" -gt 5 ]; then
+        echo "NOTE: KERNEL VERSION is ${KERNEL_VERSION} and OVS doesn't support compiling "
+        echo "Kernel module for version higher than 5.5. Skipping module compilation..."
+        build_modules="False"
+    fi
+
+    if [ ! -f configure ] ; then
+        ./boot.sh
+    fi
+    if [ ! -f config.status ] || [ configure -nt config.status ] ; then
+        if [[ "$build_modules" == "True" ]]; then
+            ./configure $prefix $localstatedir --with-linux=/lib/modules/$(uname -r)/build
+        else
+            ./configure $prefix $localstatedir
+        fi
+    fi
+    make -j$(($(nproc) + 1))
+    sudo make install
+    if [[ "$build_modules" == "True" ]]; then
+        sudo make INSTALL_MOD_DIR=kernel/net/openvswitch modules_install
+        reload_ovs_kernel_modules
+    else
+        load_ovs_kernel_modules
+    fi
+
+    cd $_pwd
+}
+
+# action_service - call an action over openvswitch service
+#                  Accepts one parameter that can be either
+#                  'start', 'restart' and 'stop'.
+function action_openvswitch {
+    local action=$1
+
+    if is_ubuntu; then
+        ${action}_service openvswitch-switch
+    elif is_fedora; then
+        ${action}_service openvswitch
+    elif is_suse; then
+        if [[ $DISTRO == "sle12" ]] && [[ $os_RELEASE -lt 12.2 ]]; then
+            ${action}_service openvswitch-switch
+        else
+            ${action}_service openvswitch
+        fi
+    fi
+}
+
+# start_new_ovs() - removes old ovs database, creates a new one and starts ovs
+function start_new_ovs {
+    sudo rm -f /etc/openvswitch/conf.db /etc/openvswitch/.conf.db~lock~
+    sudo /usr/share/openvswitch/scripts/ovs-ctl start
+}
+
+# stop_new_ovs() - stops ovs
+function stop_new_ovs {
+    local ovs_ctl='/usr/share/openvswitch/scripts/ovs-ctl'
+
+    if [ -x $ovs_ctl ] ; then
+        sudo $ovs_ctl stop
+    fi
+}
+
+# remove_ovs_packages() - removes old ovs packages from the system
+function remove_ovs_packages {
+    for package in openvswitch openvswitch-switch openvswitch-common; do
+        if is_package_installed $package; then
+            uninstall_package $package
+        fi
+    done
+}
+
+
+# load_conntrack_gre_module() - loads nf_conntrack_proto_gre kernel module
+function load_conntrack_gre_module {
+    sudo modprobe nf_conntrack_proto_gre
+}
diff --git a/lib/neutron_plugins/services/l3 b/lib/neutron_plugins/services/l3
index 75a3567..b6bc028 100644
--- a/lib/neutron_plugins/services/l3
+++ b/lib/neutron_plugins/services/l3
@@ -343,8 +343,8 @@
     # Configure the external network as the default router gateway
     openstack --os-cloud devstack-admin --os-region "$REGION_NAME" router set --external-gateway $EXT_NET_ID $ROUTER_ID
 
-    # This logic is specific to using the l3-agent for layer 3
-    if is_service_enabled q-l3 || is_service_enabled neutron-l3;  then
+    # This logic is specific to using OVN or the l3-agent for layer 3
+    if ([[ $Q_AGENT == "ovn" ]] && [[ "$OVN_L3_CREATE_PUBLIC_NETWORK" == "True" ]] && is_service_enabled q-svc neutron-server) || is_service_enabled q-l3 neutron-l3; then
         # Configure and enable public bridge
         local ext_gw_interface="none"
         if is_neutron_ovs_base_plugin; then
@@ -392,8 +392,8 @@
         openstack --os-cloud devstack-admin --os-region "$REGION_NAME" router set --external-gateway $EXT_NET_ID $ROUTER_ID
     fi
 
-    # This logic is specific to using the l3-agent for layer 3
-    if is_service_enabled q-l3 || is_service_enabled neutron-l3; then
+    # This logic is specific to using OVN or the l3-agent for layer 3
+    if ([[ $Q_AGENT == "ovn" ]] && [[ "$OVN_L3_CREATE_PUBLIC_NETWORK" == "True" ]] && is_service_enabled q-svc neutron-server) || is_service_enabled q-l3 neutron-l3; then
         # if the Linux host considers itself to be a router then it will
         # ignore all router advertisements
         # Ensure IPv6 RAs are accepted on interfaces with a default route.
@@ -420,6 +420,11 @@
 
             # Configure interface for public bridge
             sudo ip -6 addr replace $ipv6_ext_gw_ip/$ipv6_cidr_len dev $ext_gw_interface
+            # Any IPv6 private subnet that uses the default IPV6 subnet pool
+            # and that is plugged into the default router (Q_ROUTER_NAME) will
+            # be reachable from the devstack node (ex: ipv6-private-subnet).
+            # Some scenario tests (such as octavia-tempest-plugin) rely heavily
+            # on this feature.
             local replace_range=${SUBNETPOOL_PREFIX_V6}
             if [[ -z "${SUBNETPOOL_V6_ID}" ]]; then
                 replace_range=${FIXED_RANGE_V6}
diff --git a/lib/nova b/lib/nova
index 930529a..de91517 100644
--- a/lib/nova
+++ b/lib/nova
@@ -298,12 +298,6 @@
             fi
         fi
 
-        if is_fedora && [[ $DISTRO =~ f31] ]]; then
-            # For f31 use the rebased 2.1.0 version of the package.
-            sudo dnf copr enable -y lyarwood/iscsi-initiator-utils
-            sudo dnf update -y
-        fi
-
         if [[ ${ISCSID_DEBUG} == "True" ]]; then
             # Install an override that starts iscsid with debugging
             # enabled.
diff --git a/lib/nova_plugins/functions-libvirt b/lib/nova_plugins/functions-libvirt
index d3827c3..e9ceae4 100644
--- a/lib/nova_plugins/functions-libvirt
+++ b/lib/nova_plugins/functions-libvirt
@@ -58,13 +58,10 @@
 function install_libvirt {
 
     if is_ubuntu; then
-        install_package qemu-system libvirt-clients libvirt-daemon-system libvirt-dev
+        install_package qemu-system libvirt-clients libvirt-daemon-system libvirt-dev python3-libvirt
         if is_arch "aarch64"; then
             install_package qemu-efi
         fi
-        # uninstall in case the libvirt version changed
-        pip_uninstall libvirt-python
-        pip_install_gr libvirt-python
         #pip_install_gr <there-si-no-guestfs-in-pypi>
     elif is_fedora || is_suse; then
 
@@ -79,14 +76,11 @@
         # as the base system version is too old.  We should have
         # pre-installed these
         install_package qemu-kvm
+        install_package libvirt libvirt-devel python3-libvirt
 
-        install_package libvirt libvirt-devel
         if is_arch "aarch64"; then
             install_package edk2.git-aarch64
         fi
-
-        pip_uninstall libvirt-python
-        pip_install_gr libvirt-python
     fi
 
     if [[ $DEBUG_LIBVIRT_COREDUMPS == True ]]; then
diff --git a/lib/nova_plugins/hypervisor-ironic b/lib/nova_plugins/hypervisor-ironic
index bda6ef6..f058e9b 100644
--- a/lib/nova_plugins/hypervisor-ironic
+++ b/lib/nova_plugins/hypervisor-ironic
@@ -47,9 +47,13 @@
     iniset $NOVA_CONF ironic username admin
     iniset $NOVA_CONF ironic password $ADMIN_PASSWORD
     iniset $NOVA_CONF ironic auth_url $KEYSTONE_SERVICE_URI
-    iniset $NOVA_CONF ironic project_domain_id default
+    if is_ironic_enforce_scope; then
+        iniset $NOVA_CONF ironic system_scope all
+    else
+        iniset $NOVA_CONF ironic project_domain_id default
+        iniset $NOVA_CONF ironic project_name demo
+    fi
     iniset $NOVA_CONF ironic user_domain_id default
-    iniset $NOVA_CONF ironic project_name demo
     iniset $NOVA_CONF ironic region_name $REGION_NAME
 
     # These are used with crufty legacy ironicclient
@@ -82,7 +86,6 @@
     :
 }
 
-
 # Restore xtrace
 $_XTRACE_HYP_IRONIC
 
diff --git a/lib/os-vif b/lib/os-vif
new file mode 100644
index 0000000..865645c
--- /dev/null
+++ b/lib/os-vif
@@ -0,0 +1,29 @@
+#!/bin/bash
+
+# support vsctl or native.
+# until bug #1929446 is resolved we override the os-vif default
+# and fall back to the legacy "vsctl" driver.
+OS_VIF_OVS_OVSDB_INTERFACE=${OS_VIF_OVS_OVSDB_INTERFACE:="vsctl"}
+
+function is_ml2_ovs {
+    if [[ "${Q_AGENT}" == "openvswitch" ]]; then
+        echo "True"
+    fi
+    echo "False"
+}
+
+# This should be true for any ml2/ovs job but should be set to false for
+# all other ovs based jobs e.g. ml2/ovn
+OS_VIF_OVS_ISOLATE_VIF=${OS_VIF_OVS_ISOLATE_VIF:=$(is_ml2_ovs)}
+OS_VIF_OVS_ISOLATE_VIF=$(trueorfalse False OS_VIF_OVS_ISOLATE_VIF)
+
+function configure_os_vif {
+    if [[ -e ${NOVA_CONF} ]]; then
+        iniset ${NOVA_CONF} os_vif_ovs ovsdb_interface ${OS_VIF_OVS_OVSDB_INTERFACE}
+        iniset ${NOVA_CONF} os_vif_ovs isolate_vif ${OS_VIF_OVS_ISOLATE_VIF}
+    fi
+    if [[ -e ${NEUTRON_CONF} ]]; then
+        iniset ${NEUTRON_CONF} os_vif_ovs ovsdb_interface ${OS_VIF_OVS_OVSDB_INTERFACE}
+        iniset ${NEUTRON_CONF} os_vif_ovs isolate_vif ${OS_VIF_OVS_ISOLATE_VIF}
+    fi
+}
diff --git a/lib/tempest b/lib/tempest
index 29a6229..8fd54c5 100644
--- a/lib/tempest
+++ b/lib/tempest
@@ -107,7 +107,7 @@
 # Takes an image ID parameter as input
 function image_size_in_gib {
     local size
-    size=$(openstack image show $1 -c size -f value)
+    size=$(openstack --os-cloud devstack-admin image show $1 -c size -f value)
     echo $size | python3 -c "import math; print(int(math.ceil(float(int(input()) / 1024.0 ** 3))))"
 }
 
@@ -173,7 +173,7 @@
                 image_uuid_alt="$IMAGE_UUID"
             fi
             images+=($IMAGE_UUID)
-        done < <(openstack image list --property status=active | awk -F'|' '!/^(+--)|ID|aki|ari/ { print $3,$2 }')
+        done < <(openstack --os-cloud devstack-admin image list --property status=active | awk -F'|' '!/^(+--)|ID|aki|ari/ { print $3,$2 }')
 
         case "${#images[*]}" in
             0)
@@ -209,23 +209,23 @@
     local alt_username=${ALT_USERNAME:-alt_demo}
     local alt_project_name=${ALT_TENANT_NAME:-alt_demo}
     local admin_project_id
-    admin_project_id=$(openstack project list | awk "/ admin / { print \$2 }")
+    admin_project_id=$(openstack --os-cloud devstack-admin project list | awk "/ admin / { print \$2 }")
 
     if is_service_enabled nova; then
         # If ``DEFAULT_INSTANCE_TYPE`` is not declared, use the new behavior
         # Tempest creates its own instance types
-        available_flavors=$(nova flavor-list)
+        available_flavors=$(openstack --os-cloud devstack-admin flavor list)
         if  [[ -z "$DEFAULT_INSTANCE_TYPE" ]]; then
             if [[ ! ( $available_flavors =~ 'm1.nano' ) ]]; then
                 # Determine the flavor disk size based on the image size.
                 disk=$(image_size_in_gib $image_uuid)
-                openstack flavor create --id 42 --ram 128 --disk $disk --vcpus 1 --property hw_rng:allowed=True m1.nano
+                openstack --os-cloud devstack-admin flavor create --id 42 --ram 128 --disk $disk --vcpus 1 --property hw_rng:allowed=True m1.nano
             fi
             flavor_ref=42
             if [[ ! ( $available_flavors =~ 'm1.micro' ) ]]; then
                 # Determine the alt flavor disk size based on the alt image size.
                 disk=$(image_size_in_gib $image_uuid_alt)
-                openstack flavor create --id 84 --ram 192 --disk $disk --vcpus 1 --property hw_rng:allowed=True m1.micro
+                openstack --os-cloud devstack-admin flavor create --id 84 --ram 192 --disk $disk --vcpus 1 --property hw_rng:allowed=True m1.micro
             fi
             flavor_ref_alt=84
         else
@@ -251,7 +251,7 @@
             fi
             flavor_ref=${flavors[0]}
             flavor_ref_alt=$flavor_ref
-            flavor_ref_size=$(openstack flavor show --format value --column disk "${flavor_ref}")
+            flavor_ref_size=$(openstack --os-cloud devstack-admin flavor show --format value --column disk "${flavor_ref}")
 
             # Ensure ``flavor_ref`` and ``flavor_ref_alt`` have different values.
             # Some resize instance in tempest tests depends on this.
@@ -264,7 +264,7 @@
                     #               flavor selected as default, e.g. m1.small,
                     #               we need to perform additional check.
                     #
-                    flavor_ref_alt_size=$(openstack flavor show --format value --column disk "${f}")
+                    flavor_ref_alt_size=$(openstack --os-cloud devstack-admin flavor show --format value --column disk "${f}")
                     if [[ "${flavor_ref_alt_size}" -lt "${flavor_ref_size}" ]]; then
                         continue
                     fi
@@ -285,10 +285,10 @@
     # If NEUTRON_CREATE_INITIAL_NETWORKS is not true, there is no network created
     # and the public_network_id should not be set.
     if [[ "$NEUTRON_CREATE_INITIAL_NETWORKS" == "True" ]] && is_networking_extension_supported 'external-net'; then
-        public_network_id=$(openstack network show -f value -c id $PUBLIC_NETWORK_NAME)
+        public_network_id=$(openstack --os-cloud devstack-admin network show -f value -c id $PUBLIC_NETWORK_NAME)
         # make sure shared network presence does not confuses the tempest tests
-        openstack network create --share shared
-        openstack subnet create --description shared-subnet --subnet-range ${TEMPEST_SHARED_POOL:-192.168.233.0/24} --network shared shared-subnet
+        openstack --os-cloud devstack-admin network create --share shared
+        openstack --os-cloud devstack-admin subnet create --description shared-subnet --subnet-range ${TEMPEST_SHARED_POOL:-192.168.233.0/24} --network shared shared-subnet
     fi
 
     iniset $TEMPEST_CONFIG DEFAULT use_syslog $SYSLOG
@@ -419,6 +419,9 @@
     iniset $TEMPEST_CONFIG compute-feature-enabled live_migrate_back_and_forth ${LIVE_MIGRATE_BACK_AND_FORTH:-False}
     iniset $TEMPEST_CONFIG compute-feature-enabled attach_encrypted_volume ${ATTACH_ENCRYPTED_VOLUME_AVAILABLE:-True}
 
+    # Starting Wallaby, nova sanitizes instance hostnames having freeform characters with dashes
+    iniset $TEMPEST_CONFIG compute-feature-enabled hostname_fqdn_sanitization True
+
     if [[ -n "$NOVA_FILTERS" ]]; then
         iniset $TEMPEST_CONFIG compute-feature-enabled scheduler_enabled_filters ${NOVA_FILTERS}
     fi
@@ -459,13 +462,6 @@
     iniset $TEMPEST_CONFIG validation network_for_ssh $TEMPEST_SSH_NETWORK_NAME
 
     # Volume
-    # Set the service catalog entry for Tempest to run on. Typically
-    # used to try different Volume API version targets. The tempest
-    # default it to 'volumev3'(v3 APIs endpoint) , so only set this
-    # if you want to change it.
-    if [[ -n "$TEMPEST_VOLUME_TYPE" ]]; then
-        iniset $TEMPEST_CONFIG volume catalog_type $TEMPEST_VOLUME_TYPE
-    fi
     # Only turn on TEMPEST_VOLUME_MANAGE_SNAPSHOT by default for "lvm" backends
     if [[ "$CINDER_ENABLED_BACKENDS" == *"lvm"* ]]; then
         TEMPEST_VOLUME_MANAGE_SNAPSHOT=${TEMPEST_VOLUME_MANAGE_SNAPSHOT:-True}
@@ -489,12 +485,6 @@
     iniset $TEMPEST_CONFIG volume-feature-enabled volume_revert $(trueorfalse False TEMPEST_VOLUME_REVERT_TO_SNAPSHOT)
     local tempest_volume_min_microversion=${TEMPEST_VOLUME_MIN_MICROVERSION:-None}
     local tempest_volume_max_microversion=${TEMPEST_VOLUME_MAX_MICROVERSION:-"latest"}
-    # Reset microversions to None where v2 is running which does not support microversion.
-    # Both "None" means no microversion testing.
-    if [[ "$TEMPEST_VOLUME_TYPE" == "volumev2" ]]; then
-        tempest_volume_min_microversion=None
-        tempest_volume_max_microversion=None
-    fi
     if [ "$tempest_volume_min_microversion" == "None" ]; then
         inicomment $TEMPEST_CONFIG volume min_microversion
     else
@@ -610,6 +600,10 @@
         fi
     done
 
+    iniset $TEMPEST_CONFIG enforce_scope glance "$GLANCE_ENFORCE_SCOPE"
+
+    iniset $TEMPEST_CONFIG enforce_scope cinder "$CINDER_ENFORCE_SCOPE"
+
     if [ "$VIRT_DRIVER" = "libvirt" ] && [ "$LIBVIRT_TYPE" = "lxc" ]; then
         # libvirt-lxc does not support boot from volume or attaching volumes
         # so basically anything with cinder is out of the question.
@@ -715,9 +709,6 @@
     set_tempest_venv_constraints $tmp_u_c_m
 
     tox -r --notest -efull
-    # TODO: remove the trailing pip constraint when a proper fix
-    # arrives for bug https://bugs.launchpad.net/devstack/+bug/1906322
-    $TEMPEST_DIR/.tox/tempest/bin/pip install -U -r $RC_DIR/tools/cap-pip.txt
     # NOTE(mtreinish) Respect constraints in the tempest full venv, things that
     # are using a tox job other than full will not be respecting constraints but
     # running pip install -U on tempest requirements
diff --git a/roles/devstack-ipv6-only-deployments-verification/README.rst b/roles/devstack-ipv6-only-deployments-verification/README.rst
new file mode 100644
index 0000000..400a8da
--- /dev/null
+++ b/roles/devstack-ipv6-only-deployments-verification/README.rst
@@ -0,0 +1,16 @@
+Verify the IPv6-only deployments
+
+This role needs to be invoked from a playbook that
+run tests. This role verifies the IPv6 setting on
+devstack side and devstack deploy services on IPv6.
+This role is invoked before tests are run so that
+if any missing IPv6 setting or deployments can fail
+the job early.
+
+
+**Role Variables**
+
+.. zuul:rolevar:: devstack_base_dir
+   :default: /opt/stack
+
+   The devstack base directory.
diff --git a/roles/devstack-ipv6-only-deployments-verification/defaults/main.yaml b/roles/devstack-ipv6-only-deployments-verification/defaults/main.yaml
new file mode 100644
index 0000000..fea05c8
--- /dev/null
+++ b/roles/devstack-ipv6-only-deployments-verification/defaults/main.yaml
@@ -0,0 +1 @@
+devstack_base_dir: /opt/stack
diff --git a/roles/devstack-ipv6-only-deployments-verification/tasks/main.yaml b/roles/devstack-ipv6-only-deployments-verification/tasks/main.yaml
new file mode 100644
index 0000000..59d3b79
--- /dev/null
+++ b/roles/devstack-ipv6-only-deployments-verification/tasks/main.yaml
@@ -0,0 +1,4 @@
+- name: Verify the ipv6-only deployments
+  become: true
+  become_user: stack
+  shell: "{{ devstack_base_dir }}/devstack/tools/verify-ipv6-only-deployments.sh"
diff --git a/setup.cfg b/setup.cfg
index 146f010..a4e621f 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,11 +1,11 @@
 [metadata]
 name = DevStack
 summary = OpenStack DevStack
-description-file =
+description_file =
     README.rst
 author = OpenStack
-author-email = openstack-discuss@lists.openstack.org
-home-page = https://docs.openstack.org/devstack/latest
+author_email = openstack-discuss@lists.openstack.org
+home_page = https://docs.openstack.org/devstack/latest
 classifier =
     Intended Audience :: Developers
     License :: OSI Approved :: Apache Software License
diff --git a/stack.sh b/stack.sh
index 163fc5b..2737591 100755
--- a/stack.sh
+++ b/stack.sh
@@ -227,7 +227,7 @@
 
 # Warn users who aren't on an explicitly supported distro, but allow them to
 # override check and attempt installation with ``FORCE=yes ./stack``
-SUPPORTED_DISTROS="bionic|focal|f31|f32|opensuse-15.2|opensuse-tumbleweed|rhel8"
+SUPPORTED_DISTROS="focal|f34|opensuse-15.2|opensuse-tumbleweed|rhel8"
 
 if [[ ! ${DISTRO} =~ $SUPPORTED_DISTROS ]]; then
     echo "WARNING: this script has not been tested on $DISTRO"
@@ -300,10 +300,14 @@
 }
 
 function _install_rdo {
-    # NOTE(ianw) 2020-04-30 : when we have future branches, we
-    # probably want to install the relevant branch RDO release as
-    # well.  But for now it's all master.
-    sudo dnf -y install https://rdoproject.org/repos/rdo-release.el8.rpm
+    if [[ "$TARGET_BRANCH" == "master" ]]; then
+        # rdo-release.el8.rpm points to latest RDO release, use that for master
+        sudo dnf -y install https://rdoproject.org/repos/rdo-release.el8.rpm
+    else
+        # For stable branches use corresponding release rpm
+        rdo_release=$(echo $TARGET_BRANCH | sed "s|stable/||g")
+        sudo dnf -y install https://rdoproject.org/repos/openstack-${rdo_release}/rdo-release-${rdo_release}.el8.rpm
+    fi
     sudo dnf -y update
 }
 
@@ -597,6 +601,7 @@
 source $TOP_DIR/lib/dstat
 source $TOP_DIR/lib/tcpdump
 source $TOP_DIR/lib/etcd3
+source $TOP_DIR/lib/os-vif
 
 # Extras Source
 # --------------
@@ -1159,6 +1164,11 @@
     sudo sysctl -w net.ipv4.ip_forward=1
 fi
 
+# os-vif
+# ------
+if is_service_enabled nova neutron; then
+    configure_os_vif
+fi
 
 # Storage Service
 # ---------------
@@ -1341,6 +1351,7 @@
     done
 fi
 
+async_wait create_flavors
 
 if is_service_enabled horizon; then
     echo_summary "Starting Horizon"
@@ -1348,8 +1359,6 @@
     start_horizon
 fi
 
-async_wait create_flavors
-
 
 # Create account rc files
 # =======================
diff --git a/stackrc b/stackrc
old mode 100644
new mode 100755
index 196f61f..620b1fc
--- a/stackrc
+++ b/stackrc
@@ -72,8 +72,10 @@
     ENABLED_SERVICES+=,g-api
     # Cinder
     ENABLED_SERVICES+=,c-sch,c-api,c-vol
+    # OVN
+    ENABLED_SERVICES+=,ovn-controller,ovn-northd,ovs-vswitchd,ovsdb-server
     # Neutron
-    ENABLED_SERVICES+=,q-svc,q-dhcp,q-meta,q-agt,q-l3
+    ENABLED_SERVICES+=,q-svc,q-ovn-metadata-agent
     # Dashboard
     ENABLED_SERVICES+=,horizon
     # Additional services
@@ -546,6 +548,10 @@
 GITBRANCH["neutron-lib"]=${NEUTRON_LIB_BRANCH:-$TARGET_BRANCH}
 GITDIR["neutron-lib"]=$DEST/neutron-lib
 
+# os-resource-classes library containing a list of standardized resource classes for OpenStack
+GITREPO["os-resource-classes"]=${OS_RESOURCE_CLASSES_REPO=:-${GIT_BASE}/openstack/os-resource-classes.git}
+GITBRANCH["os-resource-classes"]=${OS_RESOURCE_CLASSES_BRANCH:-$TARGET_BRANCH}
+
 # os-traits library for resource provider traits in the placement service
 GITREPO["os-traits"]=${OS_TRAITS_REPO:-${GIT_BASE}/openstack/os-traits.git}
 GITBRANCH["os-traits"]=${OS_TRAITS_BRANCH:-$TARGET_BRANCH}
diff --git a/tests/test_libs_from_pypi.sh b/tests/test_libs_from_pypi.sh
index 5b53389..ce1b344 100755
--- a/tests/test_libs_from_pypi.sh
+++ b/tests/test_libs_from_pypi.sh
@@ -44,7 +44,7 @@
 ALL_LIBS+=" oslo.cache oslo.reports osprofiler cursive"
 ALL_LIBS+=" keystoneauth ironic-lib neutron-lib oslo.privsep"
 ALL_LIBS+=" diskimage-builder os-vif python-brick-cinderclient-ext"
-ALL_LIBS+=" castellan python-barbicanclient ovsdbapp os-ken"
+ALL_LIBS+=" castellan python-barbicanclient ovsdbapp os-ken os-resource-classes"
 
 # Generate the above list with
 # echo ${!GITREPO[@]}
diff --git a/tests/test_write_devstack_local_conf_role.sh b/tests/test_write_devstack_local_conf_role.sh
index b2bc0a2..71d8d51 100755
--- a/tests/test_write_devstack_local_conf_role.sh
+++ b/tests/test_write_devstack_local_conf_role.sh
@@ -6,4 +6,4 @@
 source $TOP/functions
 source $TOP/tests/unittest.sh
 
-python ./roles/write-devstack-local-conf/library/test.py
+${PYTHON} $TOP/roles/write-devstack-local-conf/library/test.py
diff --git a/tests/unittest.sh b/tests/unittest.sh
index 3703ece..fced2ab 100644
--- a/tests/unittest.sh
+++ b/tests/unittest.sh
@@ -17,6 +17,8 @@
 PASS=0
 FAILED_FUNCS=""
 
+export PYTHON=$(which python3 2>/dev/null)
+
 # pass a test, printing out MSG
 #  usage: passed message
 function passed {
diff --git a/tools/cap-pip.txt b/tools/cap-pip.txt
deleted file mode 100644
index 8ee551b..0000000
--- a/tools/cap-pip.txt
+++ /dev/null
@@ -1 +0,0 @@
-pip<20.3
diff --git a/tools/fixup_stuff.sh b/tools/fixup_stuff.sh
index 25f7268..8a2c337 100755
--- a/tools/fixup_stuff.sh
+++ b/tools/fixup_stuff.sh
@@ -59,43 +59,6 @@
     fi
 }
 
-# Ubuntu Repositories
-#--------------------
-# Enable universe for bionic since it is missing when installing from ISO.
-function fixup_ubuntu {
-    if [[ "$DISTRO" != "bionic" ]]; then
-        return
-    fi
-
-    # This pulls in apt-add-repository
-    install_package "software-properties-common"
-
-    # Enable universe
-    sudo add-apt-repository -y universe
-
-    if [[ -f /etc/ci/mirror_info.sh ]] ; then
-        # If we are on a nodepool provided host and it has told us about
-        # where we can find local mirrors then use that mirror.
-        source /etc/ci/mirror_info.sh
-        sudo apt-add-repository -y "deb $NODEPOOL_UCA_MIRROR bionic-updates/ussuri main"
-    else
-        # Enable UCA:ussuri for updated versions of QEMU and libvirt
-        sudo add-apt-repository -y cloud-archive:ussuri
-    fi
-    REPOS_UPDATED=False
-    apt_get_update
-
-    # Since pip10, pip will refuse to uninstall files from packages
-    # that were created with distutils (rather than more modern
-    # setuptools).  This is because it technically doesn't have a
-    # manifest of what to remove.  However, in most cases, simply
-    # overwriting works.  So this hacks around those packages that
-    # have been dragged in by some other system dependency
-    sudo rm -rf /usr/lib/python3/dist-packages/httplib2-*.egg-info
-    sudo rm -rf /usr/lib/python3/dist-packages/pyasn1_modules-*.egg-info
-    sudo rm -rf /usr/lib/python3/dist-packages/PyYAML-*.egg-info
-}
-
 # Python Packages
 # ---------------
 
@@ -192,6 +155,20 @@
     yum_install centos-release-openstack-victoria
 }
 
+function fixup_ubuntu {
+    if ! is_ubuntu; then
+        return
+    fi
+
+    # Since pip10, pip will refuse to uninstall files from packages
+    # that were created with distutils (rather than more modern
+    # setuptools).  This is because it technically doesn't have a
+    # manifest of what to remove.  However, in most cases, simply
+    # overwriting works.  So this hacks around those packages that
+    # have been dragged in by some other system dependency
+    sudo rm -rf /usr/lib/python3/dist-packages/PyYAML-*.egg-info
+}
+
 function fixup_all {
     fixup_keystone
     fixup_ubuntu
diff --git a/tools/install_pip.sh b/tools/install_pip.sh
index 9afd2e5..7ecea4e 100755
--- a/tools/install_pip.sh
+++ b/tools/install_pip.sh
@@ -46,15 +46,13 @@
 function get_versions {
     # FIXME(dhellmann): Deal with multiple python versions here? This
     # is just used for reporting, so maybe not?
-    PIP=$(which pip 2>/dev/null || which pip-python 2>/dev/null || true)
+    PIP=$(which pip 2>/dev/null || which pip-python 2>/dev/null || which pip3 2>/dev/null || true)
     if [[ -n $PIP ]]; then
         PIP_VERSION=$($PIP --version | awk '{ print $2}')
         echo "pip: $PIP_VERSION"
     else
         echo "pip: Not Installed"
     fi
-    # Show python3 module version
-    python${PYTHON3_VERSION} -m pip --version
 }
 
 
@@ -91,9 +89,7 @@
             die $LINENO "Download of get-pip.py failed"
         touch $LOCAL_PIP.downloaded
     fi
-    # TODO: remove the trailing pip constraint when a proper fix
-    # arrives for bug https://bugs.launchpad.net/devstack/+bug/1906322
-    sudo -H -E python${PYTHON3_VERSION} $LOCAL_PIP -c $TOOLS_DIR/cap-pip.txt
+    sudo -H -E python${PYTHON3_VERSION} $LOCAL_PIP
 }
 
 
@@ -130,24 +126,31 @@
     configure_pypi_alternative_url
 fi
 
-# Just use system pkgs on Focal
-if [[ "$DISTRO" == focal ]]; then
-    exit 0
-fi
-
-# Eradicate any and all system packages
-
-# Python in fedora/suse depends on the python-pip package so removing it
-# results in a nonfunctional system. pip on fedora installs to /usr so pip
-# can safely override the system pip for all versions of fedora
-if ! is_fedora  && ! is_suse; then
+if is_fedora && [[ ${DISTRO} == f* ]]; then
+    # get-pip.py will not install over the python3-pip package in
+    # Fedora 34 any more.
+    #  https://bugzilla.redhat.com/show_bug.cgi?id=1988935
+    #  https://github.com/pypa/pip/issues/9904
+    # You can still install using get-pip.py if python3-pip is *not*
+    # installed; this *should* remain separate under /usr/local and not break
+    # if python3-pip is later installed.
+    # For general sanity, we just use the packaged pip.  It should be
+    # recent enough anyway.
+    install_package python3-pip
+elif is_fedora || is_suse; then
+    # Python in suse/centos depends on the python-pip package; because
+    # of the split "system-python" uninstalling python3-pip also
+    # uninstalls the user python3 package which is bad and leaves us
+    # without a python to use.  Just install over.
+    install_get_pip
+else
+    # Remove packaged pip, and install the latest upstream.
     if is_package_installed python3-pip ; then
         uninstall_package python3-pip
     fi
+    install_get_pip
 fi
 
-install_get_pip
-
 set -x
 
 # Note setuptools is part of requirements.txt and we want to make sure
diff --git a/tools/verify-ipv6-only-deployments.sh b/tools/verify-ipv6-only-deployments.sh
new file mode 100755
index 0000000..2596395
--- /dev/null
+++ b/tools/verify-ipv6-only-deployments.sh
@@ -0,0 +1,92 @@
+#!/bin/bash
+#
+#
+# NOTE(gmann): This script is used in 'devstack-tempest-ipv6' zuul job to verify that
+# services are deployed on IPv6 properly or not. This will capture if any devstck or devstack
+# plugins are missing the required setting to listen on IPv6 address. This is run as part of
+# run phase of zuul job and before test run. Child job of 'devstack-tempest-ipv6'
+# can expand the IPv6 verification specific to project by defining the new post-run script which
+# will run along with this base script.
+# If there are more common verification for IPv6 then we can always extent this script.
+
+# Keep track of the DevStack directory
+TOP_DIR=$(cd $(dirname "$0")/../../devstack && pwd)
+source $TOP_DIR/stackrc
+source $TOP_DIR/openrc admin admin
+
+function verify_devstack_ipv6_setting {
+    local _service_host=''
+    _service_host=$(echo $SERVICE_HOST | tr -d [])
+    local _host_ipv6=''
+    _host_ipv6=$(echo $HOST_IPV6 | tr -d [])
+    local _service_listen_address=''
+    _service_listen_address=$(echo $SERVICE_LISTEN_ADDRESS | tr -d [])
+    local _service_local_host=''
+    _service_local_host=$(echo $SERVICE_LOCAL_HOST | tr -d [])
+    if [[ "$SERVICE_IP_VERSION" != 6 ]]; then
+        echo $SERVICE_IP_VERSION "SERVICE_IP_VERSION is not set to 6 which is must for devstack to deploy services with IPv6 address."
+        exit 1
+    fi
+    is_service_host_ipv6=$(python3 -c 'import oslo_utils.netutils as nutils; print(nutils.is_valid_ipv6("'$_service_host'"))')
+    if [[ "$is_service_host_ipv6" != "True" ]]; then
+        echo $SERVICE_HOST "SERVICE_HOST is not ipv6 which means devstack cannot deploy services on IPv6 address."
+        exit 1
+    fi
+    is_host_ipv6=$(python3 -c 'import oslo_utils.netutils as nutils; print(nutils.is_valid_ipv6("'$_host_ipv6'"))')
+    if [[ "$is_host_ipv6" != "True" ]]; then
+        echo $HOST_IPV6 "HOST_IPV6 is not ipv6 which means devstack cannot deploy services on IPv6 address."
+        exit 1
+    fi
+    is_service_listen_address=$(python3 -c 'import oslo_utils.netutils as nutils; print(nutils.is_valid_ipv6("'$_service_listen_address'"))')
+    if [[ "$is_service_listen_address" != "True" ]]; then
+        echo $SERVICE_LISTEN_ADDRESS "SERVICE_LISTEN_ADDRESS is not ipv6 which means devstack cannot deploy services on IPv6 address."
+        exit 1
+    fi
+    is_service_local_host=$(python3 -c 'import oslo_utils.netutils as nutils; print(nutils.is_valid_ipv6("'$_service_local_host'"))')
+    if [[ "$is_service_local_host" != "True" ]]; then
+        echo $SERVICE_LOCAL_HOST "SERVICE_LOCAL_HOST is not ipv6 which means devstack cannot deploy services on IPv6 address."
+        exit 1
+    fi
+    echo "Devstack is properly configured with IPv6"
+    echo "SERVICE_IP_VERSION: " $SERVICE_IP_VERSION "HOST_IPV6: " $HOST_IPV6 "SERVICE_HOST: " $SERVICE_HOST "SERVICE_LISTEN_ADDRESS: " $SERVICE_LISTEN_ADDRESS "SERVICE_LOCAL_HOST: " $SERVICE_LOCAL_HOST
+}
+
+function sanity_check_system_ipv6_enabled {
+    system_ipv6_enabled=$(python3 -c 'import oslo_utils.netutils as nutils; print(nutils.is_ipv6_enabled())')
+    if [[ $system_ipv6_enabled != "True" ]]; then
+        echo "IPv6 is disabled in system"
+        exit 1
+    fi
+    echo "IPv6 is enabled in system"
+}
+
+function verify_service_listen_address_is_ipv6 {
+    local endpoints_verified=False
+    local all_ipv6=True
+    endpoints=$(openstack endpoint list -f value -c URL)
+    for endpoint in ${endpoints}; do
+        local endpoint_address=''
+        endpoint_address=$(echo "$endpoint" | awk -F/ '{print $3}' | awk -F] '{print $1}')
+        endpoint_address=$(echo $endpoint_address | tr -d [])
+        local is_endpoint_ipv6=''
+        is_endpoint_ipv6=$(python3 -c 'import oslo_utils.netutils as nutils; print(nutils.is_valid_ipv6("'$endpoint_address'"))')
+        if [[ "$is_endpoint_ipv6" != "True" ]]; then
+            all_ipv6=False
+            echo $endpoint ": This is not ipv6 endpoint which means corresponding service is not listening on IPv6 address."
+            continue
+        fi
+        endpoints_verified=True
+    done
+    if [[ "$all_ipv6" == "False"  ]] || [[ "$endpoints_verified" == "False" ]]; then
+        exit 1
+    fi
+    echo "All services deployed by devstack is on IPv6 endpoints"
+    echo $endpoints
+}
+
+#First thing to verify if system has IPv6 enabled or not
+sanity_check_system_ipv6_enabled
+#Verify whether devstack is configured properly with IPv6 setting
+verify_devstack_ipv6_setting
+#Get all registrfed endpoints by devstack in keystone and verify that each endpoints address is IPv6.
+verify_service_listen_address_is_ipv6
diff --git a/tools/worlddump.py b/tools/worlddump.py
index 22770f1..e292173 100755
--- a/tools/worlddump.py
+++ b/tools/worlddump.py
@@ -134,7 +134,7 @@
 
 
 def ebtables_dump():
-    tables = ['filter', 'nat', 'broute']
+    tables = ['filter', 'nat']
     _header("EB Tables Dump")
     if not _find_cmd('ebtables'):
         return