manager/allocator/cnmallocator: convert to new-style driver registration #3143
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The libnetwork driver registry and driver
Init()
functions were deprecated in moby/moby@28edc8e in favour of separate registries for network and IPAM drivers andRegister()
functions for the drivers.Refactor the network driver initializer list to be a map as the network types should be unique, and it allows
IsBuiltInDriver()
to run in O(1) time.The remote drivers are a special case as they dynamically register plugins with the driver registries when the plugins are initialized. As they are the only drivers which need a
PluginGetter
, register the remote drivers separately as a special case rather than trying to continue shoehorning them intoinitializers
andinitIPAMDrivers()
.There is no "remote" network type. However, Swarmkit has accepted it as a valid network type ever since support for selectable network drivers was first added in 5507383. This is a bug, as attempting to create such a network would ultimately fail. Special-casing the remote network driver incidentally fixes the bug as it is no longer present in initializers, which is used as the source of truth for
IsBuiltinDriver()
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