Merge "Add possibility to not compile ovs and ovn if that's disabled"

lib/neutron_plugins/ovn_agent

@@ -28,6 +28,8 @@ source $NEUTRON_DIR/devstack/lib/ovs
 # Defaults
 # --------
 
+Q_BUILD_OVS_FROM_GIT=$(trueorfalse True Q_BUILD_OVS_FROM_GIT)
+
 # Set variables for building OVN from source
 OVN_REPO=${OVN_REPO:-https://github.com/ovn-org/ovn.git}
 OVN_REPO_NAME=$(basename ${OVN_REPO} | cut -f1 -d'.')
@@ -322,6 +324,11 @@ function ovn_sanity_check {
 
 # install_ovn() - Collect source and prepare
 function install_ovn {
+    if [[ "$Q_BUILD_OVS_FROM_GIT" == "False" ]]; then
+        echo "Installation of OVS from source disabled."
+        return 0
+    fi
+
     echo "Installing OVN and dependent packages"
 
     # Check the OVN configuration