76 lines
1.9 KiB
Go
76 lines
1.9 KiB
Go
//go:build windows
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// +build windows
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package libnetwork
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import (
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"runtime"
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"time"
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"github.com/Microsoft/hcsshim"
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"github.com/docker/docker/libnetwork/drivers/windows"
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"github.com/docker/docker/libnetwork/ipamapi"
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"github.com/docker/docker/libnetwork/ipams/windowsipam"
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"github.com/sirupsen/logrus"
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)
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func executeInCompartment(compartmentID uint32, x func()) {
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runtime.LockOSThread()
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if err := hcsshim.SetCurrentThreadCompartmentId(compartmentID); err != nil {
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logrus.Error(err)
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}
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defer func() {
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hcsshim.SetCurrentThreadCompartmentId(0)
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runtime.UnlockOSThread()
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}()
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x()
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}
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func (n *network) startResolver() {
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if n.networkType == "ics" {
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return
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}
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n.resolverOnce.Do(func() {
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logrus.Debugf("Launching DNS server for network %q", n.Name())
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options := n.Info().DriverOptions()
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hnsid := options[windows.HNSID]
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if hnsid == "" {
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return
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}
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hnsresponse, err := hcsshim.HNSNetworkRequest("GET", hnsid, "")
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if err != nil {
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logrus.Errorf("Resolver Setup/Start failed for container %s, %q", n.Name(), err)
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return
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}
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for _, subnet := range hnsresponse.Subnets {
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if subnet.GatewayAddress != "" {
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for i := 0; i < 3; i++ {
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resolver := NewResolver(subnet.GatewayAddress, false, "", n)
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logrus.Debugf("Binding a resolver on network %s gateway %s", n.Name(), subnet.GatewayAddress)
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executeInCompartment(hnsresponse.DNSServerCompartment, resolver.SetupFunc(53))
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if err = resolver.Start(); err != nil {
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logrus.Errorf("Resolver Setup/Start failed for container %s, %q", n.Name(), err)
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time.Sleep(1 * time.Second)
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} else {
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logrus.Debugf("Resolver bound successfully for network %s", n.Name())
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n.resolver = append(n.resolver, resolver)
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break
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}
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}
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}
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}
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})
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}
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func defaultIpamForNetworkType(networkType string) string {
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if windows.IsBuiltinLocalDriver(networkType) {
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return windowsipam.DefaultIPAM
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}
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return ipamapi.DefaultIPAM
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}
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