Preparation for Neutron Linuxbridge gate

Added new variable SDN_PLUGIN to handle gate behavior when using ovs or
linuxbridge.

By default SDN_PLUGIN is set to ovs.

To enable testing linuxbridge, new gate have to be created, with
SDN_PLUGIN set to linuxbridge.

Change-Id: I014307ae497374b5b6fa00946b01fa5d93c3056f
Implements: blueprint support-linux-bridge-on-neutron

tools/gate/funcs/common.sh

@@ -12,6 +12,20 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+function sdn_lb_support_install {
+  if [ "x$HOST_OS" == "xubuntu" ]; then
+    sudo apt-get update -y
+    sudo apt-get install -y --no-install-recommends \
+      bridge-utils
+  elif [ "x$HOST_OS" == "xcentos" ]; then
+    sudo yum install -y \
+      bridge-utils
+  elif [ "x$HOST_OS" == "xfedora" ]; then
+    sudo dnf install -y \
+      bridge-utils
+  fi
+}
+
 function base_install {
   if [ "x$HOST_OS" == "xubuntu" ]; then
     sudo apt-get update -y
@@ -39,8 +53,24 @@ function base_install {
       nmap \
       lshw
   fi
+
+  if [ "x$SDN_PLUGIN" == "xlinuxbridge" ]; then
+    sdn_lb_support_install
+  fi
+
+  # NOTE(portdirect): Temp workaround until module loading is supported by
+  # OpenStack-Helm in Fedora
+  if [ "x$HOST_OS" == "xfedora" ]; then
+    sudo modprobe openvswitch
+    sudo modprobe ebtables
+    sudo modprobe gre
+    sudo modprobe vxlan
+    sudo modprobe ip6_tables
+  fi
 }
 
+
+
 function loopback_support_install {
   if [ "x$HOST_OS" == "xubuntu" ]; then
     sudo apt-get update -y

tools/gate/launch-osh/basic.sh

@@ -127,19 +127,43 @@ helm install --namespace=openstack ${WORK_DIR}/glance --name=glance \
 kube_wait_for_pods openstack ${SERVICE_LAUNCH_TIMEOUT}
 
 helm install --namespace=openstack ${WORK_DIR}/libvirt --name=libvirt
-helm install --namespace=openstack ${WORK_DIR}/openvswitch --name=openvswitch
+if [ "x$SDN_PLUGIN" == "xovs" ]; then
+  helm install --namespace=openstack ${WORK_DIR}/openvswitch --name=openvswitch
+fi
 kube_wait_for_pods openstack ${SERVICE_LAUNCH_TIMEOUT}
 
-if [ "x$PVC_BACKEND" == "xceph" ]; then
+if [ "x$PVC_BACKEND" == "xceph" ] && [ "x$SDN_PLUGIN" == "xovs" ]; then
   helm install --namespace=openstack ${WORK_DIR}/nova --name=nova \
-    --set=conf.nova.libvirt.nova.conf.virt_type=qemu
-else
+      --set=conf.nova.libvirt.nova.conf.virt_type=qemu
+
+  helm install --namespace=openstack ${WORK_DIR}/neutron --name=neutron \
+      --values=${WORK_DIR}/tools/overrides/mvp/neutron-ovs.yaml
+
+elif [ "x$PVC_BACKEND" == "x" ] && [ "x$SDN_PLUGIN" == "xovs" ]; then
   helm install --namespace=openstack ${WORK_DIR}/nova --name=nova \
-    --values=${WORK_DIR}/tools/overrides/mvp/nova.yaml \
-    --set=conf.nova.libvirt.nova.conf.virt_type=qemu
+      --values=${WORK_DIR}/tools/overrides/mvp/nova.yaml \
+      --set=conf.nova.libvirt.nova.conf.virt_type=qemu
+
+  helm install --namespace=openstack ${WORK_DIR}/neutron --name=neutron \
+      --values=${WORK_DIR}/tools/overrides/mvp/neutron-ovs.yaml
+
+elif [ "x$PVC_BACKEND" == "xceph" ] && [ "x$SDN_PLUGIN" == "xlinuxbridge" ]; then
+  helm install --namespace=openstack ${WORK_DIR}/nova --name=nova \
+      --set=dependencies.compute.daemonset={neutron-lb-agent} \
+      --set=conf.nova.libvirt.nova.conf.virt_type=qemu
+
+  helm install --namespace=openstack ${WORK_DIR}/neutron --name=neutron \
+      --values=${WORK_DIR}/tools/overrides/mvp/neutron-linuxbridge.yaml
+
+elif [ "x$PVC_BACKEND" == "x" ] && [ "x$SDN_PLUGIN" == "xlinuxbridge" ]; then
+  helm install --namespace=openstack ${WORK_DIR}/nova --name=nova \
+      --values=${WORK_DIR}/tools/overrides/mvp/nova.yaml \
+      --set=conf.nova.libvirt.nova.conf.virt_type=qemu
+
+  helm install --namespace=openstack ${WORK_DIR}/neutron --name=neutron \
+      --values=${WORK_DIR}/tools/overrides/mvp/neutron-linuxbridge.yaml
 fi
-helm install --namespace=openstack ${WORK_DIR}/neutron --name=neutron \
-    --values=${WORK_DIR}/tools/overrides/mvp/neutron-ovs.yaml
+
 kube_wait_for_pods openstack ${SERVICE_LAUNCH_TIMEOUT}
 
 helm install --namespace=openstack ${WORK_DIR}/heat --name=heat

tools/gate/launch-osh/common.sh

@@ -18,15 +18,6 @@ source ${WORK_DIR}/tools/gate/funcs/helm.sh
 source ${WORK_DIR}/tools/gate/funcs/kube.sh
 source ${WORK_DIR}/tools/gate/funcs/network.sh
 
-# NOTE(portdirect): Temp workaround until module loading is supported by
-# OpenStack-Helm in Fedora
-if [ "x$HOST_OS" == "xfedora" ]; then
-  sudo modprobe openvswitch
-  sudo modprobe gre
-  sudo modprobe vxlan
-  sudo modprobe ip6_tables
-fi
-
 if [ "x$PVC_BACKEND" == "xceph" ]; then
   kubectl label nodes ceph-mon=enabled --all
   kubectl label nodes ceph-osd=enabled --all
@@ -34,5 +25,14 @@ if [ "x$PVC_BACKEND" == "xceph" ]; then
   kubectl label nodes ceph-rgw=enabled --all
 fi
 
+if [ "x$SDN_PLUGIN" == "xovs" ]; then
+  kubectl label nodes openvswitch=enabled --all --namespace=openstack --overwrite
+elif [ "x$SDN_PLUGIN" == "xlinuxbridge" ]; then
+  # first unlabel nodes with 'openvswitch' tag, which is applied by default
+  # by kubeadm-aio docker image
+  kubectl label nodes openvswitch- --all --namespace=openstack --overwrite
+  kubectl label nodes linuxbridge=enabled --all --namespace=openstack --overwrite
+fi
+
 helm install --namespace=openstack ${WORK_DIR}/dns-helper --name=dns-helper
 kube_wait_for_pods openstack 180

tools/gate/openstack/network_launch.sh

@@ -28,9 +28,11 @@ sudo ip link set br-ex up
 # Setup masquerading on default route dev to public subnet
 sudo iptables -t nat -A POSTROUTING -o $(net_default_iface) -s ${OSH_EXT_SUBNET} -j MASQUERADE
 
-# Disable In-Band rules on br-ex bridge to ease debugging
-OVS_VSWITCHD_POD=$(kubectl get -n openstack pods -l application=openvswitch,component=openvswitch-vswitchd --no-headers -o name | head -1 | awk -F '/' '{ print $NF }')
-kubectl exec -n openstack ${OVS_VSWITCHD_POD} -- ovs-vsctl set Bridge br-ex other_config:disable-in-band=true
+if [ "x$SDN_PLUGIN" == "xovs" ]; then
+  # Disable In-Band rules on br-ex bridge to ease debugging
+  OVS_VSWITCHD_POD=$(kubectl get -n openstack pods -l application=openvswitch,component=openvswitch-vswitchd --no-headers -o name | head -1 | awk -F '/' '{ print $NF }')
+  kubectl exec -n openstack ${OVS_VSWITCHD_POD} -- ovs-vsctl set Bridge br-ex other_config:disable-in-band=true
+fi
 
 
 if ! $OPENSTACK service list -f value -c Type | grep -q orchestration; then

tools/gate/vars.sh

@@ -44,6 +44,10 @@ export OPENSTACK_OBJECT_STORAGE=${OPENSTACK_OBJECT_STORAGE:-"radosgw"}
 # Set Glance Backend options
 export GLANCE=${GLANCE:-"radosgw"}
 
+# Set SDN Plugin
+# possible values: ovs, linuxbridge
+export SDN_PLUGIN=${SDN_PLUGIN:-"ovs"}
+
 # Set Upstream DNS
 export UPSTREAM_DNS=${UPSTREAM_DNS:-"8.8.8.8"}