diff options
Diffstat (limited to 'sdnvpn/lib/utils.py')
| -rw-r--r-- | sdnvpn/lib/utils.py | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/sdnvpn/lib/utils.py b/sdnvpn/lib/utils.py index 27fd5b3..5dcb8c1 100644 --- a/sdnvpn/lib/utils.py +++ b/sdnvpn/lib/utils.py @@ -437,3 +437,30 @@ def wait_for_cloud_init(instance): success = False return success + + +def attach_instance_to_ext_br(instance, compute_node): + libvirt_instance_name = getattr(instance, "OS-EXT-SRV-ATTR:instance_name") + installer_type = str(os.environ['INSTALLER_TYPE'].lower()) + if installer_type == "fuel": + bridge = "br-ex" + elif installer_type == "apex": + # In Apex, br-ex is an ovs bridge and virsh attach-interface + # won't just work. We work around it by creating a linux + # bridge, attaching that to br-ex with a veth pair + # and virsh-attaching the instance to the linux-bridge + bridge = "br-quagga" + cmd = """ + set -xe + sudo brctl addbr {bridge} && + sudo ip link set {bridge} up && + sudo ip link add quagga-tap type veth peer name ovs-quagga-tap && + sudo ip link set dev ovs-quagga-tap up && + sudo ip link set dev quagga-tap up && + sudo ovs-vsctl add-port br-ex ovs-quagga-tap && + sudo brctl addif {bridge} quagga-tap + """ + compute_node.run_cmd(cmd.format(bridge=bridge)) + + compute_node.run_cmd("sudo virsh attach-interface %s" + " bridge %s" % (libvirt_instance_name, bridge)) |