openstack-ansible-lxc_conta.../releasenotes/notes/container-static-mac-addres...

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features:
- LXC containers will now generate a fixed mac address on all
network interfaces when the option `lxc_container_fixed_mac`
is set to **true**. This feature was implemented to resolve
issues with dynamic mac addresses in containers generally
experienced at scale with network intensive services.
fixes:
- LXC containers will now have the ability to use a fixed mac
address on all network interfaces when the option
`lxc_container_fixed_mac` is set **true**. This change will
assist in resolving a long standing issue where network intensive
services, such as neutron and rabbitmq, can enter a confused state
for long periods of time and require rolling restarts or internal
system resets to recover.