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In change If3989f24f077738845d2edbee405bd9198e7b7db we moved to jinja2
templating to render the networks. This change aims at doing so for the
IPv6 network isolation environment.
This change introduces the ability to use IPv6 addressing for the
management network by passing the network-management-v6.yaml
environment file. It also adjusts the network-management.yaml
environment file to point to the right network config templates.
This change adds a system management network to all overcloud
nodes. The purpose of this network is for system administration,
for access to infrastructure services like DNS or NTP, or for
monitoring. This allows the management network to be placed on a
bond for redundancy, or for the system management network to be
an out-of-band network with no routing in or out. The management
network might also be configured as a default route instead of the
provisioning 'ctlplane' network.
This change does not enable the management network by default. An
environment file named network-management.yaml may be included to
enable the network and ports for each role. The included NIC config
templates have been updated with a block that may be uncommented
when the management network is enabled.
This change also contains some minor cleanup to the NIC templates,
particularly the multiple nic templates.