anti 42b5e4cd06 fix(network): replace decnet_lan when driver differs (macvlan<->ipvlan) ...

The create helpers short-circuited on name alone, so a prior macvlan
deploy left Docker's decnet_lan network in place. A subsequent ipvlan
deploy would no-op the network create, then container attach would try
to add a macvlan port on enp0s3 that already had an ipvlan slave —
EBUSY, agent 500, docker ps empty.

Now: when the existing network's driver disagrees with the requested
one, disconnect any live containers and DROP it before recreating.
Parent-NIC can host one driver at a time.

Also: setup_host_{macvlan,ipvlan} opportunistically delete the opposite
host-side helper so we don't leave cruft across driver swaps.

2026-04-19 18:12:28 -04:00

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