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package cnmallocator
import (
"context"
"strconv"
"strings"
"github.com/containerd/log"
"github.com/docker/docker/libnetwork/ipamapi"
builtinIpam "github.com/docker/docker/libnetwork/ipams/builtin"
nullIpam "github.com/docker/docker/libnetwork/ipams/null"
"github.com/docker/docker/libnetwork/ipamutils"
"github.com/moby/swarmkit/v2/manager/allocator/networkallocator"
)
func initIPAMDrivers(r ipamapi.Registerer, netConfig *networkallocator.Config) error {
var addressPool []*ipamutils.NetworkToSplit
var str strings.Builder
str.WriteString("Subnetlist - ")
// Extract defaultAddrPool param info and construct ipamutils.NetworkToSplit
// from the info. We will be using it to call Libnetwork API
// We also need to log new address pool info whenever swarm init
// happens with default address pool option
if netConfig != nil {
for _, p := range netConfig.DefaultAddrPool {
addressPool = append(addressPool, &ipamutils.NetworkToSplit{
Base: p,
Size: int(netConfig.SubnetSize),
})
str.WriteString(p + ",")
}
str.WriteString(": Size ")
str.WriteString(strconv.Itoa(int(netConfig.SubnetSize)))
}
if err := ipamutils.ConfigGlobalScopeDefaultNetworks(addressPool); err != nil {
return err
}
if addressPool != nil {
log.G(context.TODO()).Infof("Swarm initialized global default address pool to: " + str.String())
}
for _, fn := range [](func(ipamapi.Registerer) error){
builtinIpam.Register,
nullIpam.Register,
} {
if err := fn(r); err != nil {
return err
}
}
return nil
}
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