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The cnmallocator package has a map of supported network drivers which are registered using a pkg-local driver registry. This registry is then used to load drivers, and if they have a 'local' DataScope, they aren't used for anything. Drivers with a 'global' DataScope are called to allocate cluster-wide network resources. Instantiating builtin network drivers may have unintended side-effects (e.g. the bridge driver registers a callback that should run when firewalld is reloaded), so libnetwork has dummy '*manager' drivers that do nothing but carry the same Capability than the original driver they masquerade. Put 'local drivers' (e.g. those with DataScope 'local') into a separate list that just contains drivers' name, and don't register them into the cnmallocator's driver registry. Remove all the dummy '*manager' drivers as they're not needed anymore. Signed-off-by: Albin Kerouanton <albinker@gmail.com>
30 lines
1004 B
Go
30 lines
1004 B
Go
package cnmallocator
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import (
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"github.com/moby/moby/v2/daemon/libnetwork/driverapi"
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"github.com/moby/moby/v2/daemon/libnetwork/drivers/overlay/ovmanager"
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"github.com/moby/swarmkit/v2/manager/allocator/networkallocator"
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)
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// globalDrivers is a map of network drivers that support cluster-wide
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// definition and require cluster-wide resources allocation (i.e. DataScope == scope.Global).
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var globalDrivers = map[string]func(driverapi.Registerer) error{
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"overlay": ovmanager.Register,
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}
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// localDrivers is a list of builtin network drivers that support cluster-wide
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// definition (i.e. --scope=swarm on the CLI), but don't need global
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// resources allocations (i.e., DataScope == scope.Local).
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var localDrivers = []string{
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"internal",
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"l2bridge",
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"nat",
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}
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// PredefinedNetworks returns the list of predefined network structures
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func (*Provider) PredefinedNetworks() []networkallocator.PredefinedNetworkData {
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return []networkallocator.PredefinedNetworkData{
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{Name: "nat", Driver: "nat"},
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}
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}
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