/etc/default/openvswitch-nova is in nova-xcp-network 2012.1-0ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | # The interfaces that you want to apply base OVS rules to. If this is
# unspecified then rules are applied to all eth* interfaces, which is a good
# default.
#
# If you are worried about the performance of having rules on interfaces
# that aren't carrying tenant traffic, or you want to do something
# custom, then here you can explicitly choose the interfaces that should have
# rules applied.
#
# Note that if there is an IP address on the bridge in domain 0 (i.e. the
# xenbrX interface) then a rule will be applied that allows traffic to it.
# Make sure that this is what you want. If you don't want tenant traffic
# to be able to reach domain 0 -- the usual case -- then you should have
# tenant traffic and domain 0 on entirely separate bridges.
#INTERFACES="eth0 eth1"
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