moby/libnetwork/ipams/builtin/builtin.go
Cory Snider a08a254df3 libnetwork: drop DatastoreConfig discovery type
The DatastoreConfig discovery type is unused. Remove the constant and
any resulting dead code. Today's biggest loser is the IPAM Allocator:
DatastoreConfig was the only type of discovery event it was listening
for, and there was no other place where a non-nil datastore could be
passed into the allocator. Strip out all the dead persistence code from
Allocator, leaving it as purely an in-memory implementation.

There is no more need to check the consistency of the allocator's
bit-sequences as there is no persistent storage for inconsistent bit
sequences to be loaded from.

Signed-off-by: Cory Snider <csnider@mirantis.com>
2023-01-27 11:47:43 -05:00

43 lines
1.1 KiB
Go

package builtin
import (
"net"
"github.com/docker/docker/libnetwork/ipam"
"github.com/docker/docker/libnetwork/ipamapi"
"github.com/docker/docker/libnetwork/ipamutils"
)
var (
// defaultAddressPool Stores user configured subnet list
defaultAddressPool []*net.IPNet
)
// registerBuiltin registers the built-in ipam driver with libnetwork.
func registerBuiltin(ic ipamapi.Registerer) error {
var localAddressPool []*net.IPNet
if len(defaultAddressPool) > 0 {
localAddressPool = append([]*net.IPNet(nil), defaultAddressPool...)
} else {
localAddressPool = ipamutils.GetLocalScopeDefaultNetworks()
}
a, err := ipam.NewAllocator(localAddressPool, ipamutils.GetGlobalScopeDefaultNetworks())
if err != nil {
return err
}
cps := &ipamapi.Capability{RequiresRequestReplay: true}
return ic.RegisterIpamDriverWithCapabilities(ipamapi.DefaultIPAM, a, cps)
}
// SetDefaultIPAddressPool stores default address pool.
func SetDefaultIPAddressPool(addressPool []*ipamutils.NetworkToSplit) error {
nets, err := ipamutils.SplitNetworks(addressPool)
if err != nil {
return err
}
defaultAddressPool = nets
return nil
}