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The netip types are really useful for tracking state in the overlay driver as they are hashable, unlike net.IP and friends, making them directly useable as map keys. Converting between netip and net types is fairly trivial, but fewer conversions is more ergonomic. The NetworkDB entries for the overlay peer table encode the IP addresses as strings. We need to parse them to some representation before processing them further. Parse directly into netip types and pass those values around to cut down on the number of conversions needed. The peerDB needs to marshal the keys and entries to structs of hashable values to be able to insert them into the SetMatrix. Use netip.Addr in peerEntry so that peerEntry values can be directly inserted into the SetMatrix without conversions. Use a hashable struct type as the SetMatrix key to avoid having to marshal the whole struct to a string and parse it back out. Use netip.Addr as the map key for the driver's encryption map so the values do not need to be converted to and from strings. Change the encryption configuration methods to take netip types so the peerDB code can pass netip values directly. Signed-off-by: Cory Snider <csnider@mirantis.com>
libnetwork - networking for containers
Libnetwork provides a native Go implementation for connecting containers
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