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teach kubenet to use hostport_manager

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This commit is contained in:
Minhan Xia 2017-02-03 13:26:42 -08:00
parent bd05e1af2b
commit be9eca6b51
5 changed files with 69 additions and 36 deletions
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1
pkg/kubelet/dockershim/BUILD
View File

@ -39,6 +39,7 @@ go_library(
"//pkg/kubelet/leaky:go_default_library",
"//pkg/kubelet/network:go_default_library",
"//pkg/kubelet/network/cni:go_default_library",
"//pkg/kubelet/network/hostport:go_default_library",
"//pkg/kubelet/network/kubenet:go_default_library",
"//pkg/kubelet/qos:go_default_library",
"//pkg/kubelet/server/streaming:go_default_library",

1
pkg/kubelet/network/BUILD
View File

@ -20,6 +20,7 @@ go_library(
"//pkg/apis/componentconfig:go_default_library",
"//pkg/client/clientset_generated/clientset:go_default_library",
"//pkg/kubelet/container:go_default_library",
"//pkg/kubelet/network/hostport:go_default_library",
"//pkg/util/exec:go_default_library",
"//pkg/util/sysctl:go_default_library",
"//vendor:github.com/golang/glog",

1
pkg/kubelet/network/cni/BUILD
View File

@ -37,6 +37,7 @@ go_test(
"//pkg/kubelet/container/testing:go_default_library",
"//pkg/kubelet/network:go_default_library",
"//pkg/kubelet/network/cni/testing:go_default_library",
"//pkg/kubelet/network/testing:go_default_library",
"//pkg/util/exec:go_default_library",
"//vendor:github.com/containernetworking/cni/pkg/types",
"//vendor:github.com/stretchr/testify/mock",

101
pkg/kubelet/network/kubenet/kubenet_linux.go
View File

@ -89,7 +89,11 @@ type kubenetNetworkPlugin struct {
execer utilexec.Interface
nsenterPath string
hairpinMode componentconfig.HairpinMode
// kubenet can use either hostportSyncer and hostportManager to implement hostports
// Currently, if network host supports legacy features, hostportSyncer will be used,
// otherwise, hostportManager will be used.
hostportSyncer hostport.HostportSyncer
hostportManager hostport.HostPortManager
iptables utiliptables.Interface
sysctl utilsysctl.Interface
ebtables utilebtables.Interface
@ -114,6 +118,7 @@ func NewPlugin(networkPluginDir string) network.NetworkPlugin {
sysctl: sysctl,
vendorDir: networkPluginDir,
hostportSyncer: hostport.NewHostportSyncer(),
hostportManager: hostport.NewHostportManager(),
nonMasqueradeCIDR: "10.0.0.0/8",
}
}
@ -356,35 +361,48 @@ func (plugin *kubenetNetworkPlugin) setup(namespace string, name string, id kube
// The host can choose to not support "legacy" features. The remote
// shim doesn't support it (#35457), but the kubelet does.
if !plugin.host.SupportsLegacyFeatures() {
return nil
}
if plugin.host.SupportsLegacyFeatures() {
// The first SetUpPod call creates the bridge; get a shaper for the sake of
// initialization
shaper := plugin.shaper()
// The first SetUpPod call creates the bridge; get a shaper for the sake of
// initialization
shaper := plugin.shaper()
ingress, egress, err := bandwidth.ExtractPodBandwidthResources(pod.Annotations)
if err != nil {
return fmt.Errorf("Error reading pod bandwidth annotations: %v", err)
}
if egress != nil || ingress != nil {
if err := shaper.ReconcileCIDR(fmt.Sprintf("%s/32", ip4.String()), egress, ingress); err != nil {
return fmt.Errorf("Failed to add pod to shaper: %v", err)
}
}
ingress, egress, err := bandwidth.ExtractPodBandwidthResources(pod.Annotations)
if err != nil {
return fmt.Errorf("Error reading pod bandwidth annotations: %v", err)
}
if egress != nil || ingress != nil {
if err := shaper.ReconcileCIDR(fmt.Sprintf("%s/32", ip4.String()), egress, ingress); err != nil {
return fmt.Errorf("Failed to add pod to shaper: %v", err)
// Open any hostports the pod's containers want
activePodPortMapping, err := plugin.getPodPortMapping()
if err != nil {
return err
}
newPodPortMapping := constructPodPortMapping(pod, ip4)
if err := plugin.hostportSyncer.OpenPodHostportsAndSync(newPodPortMapping, BridgeName, activePodPortMapping); err != nil {
return err
}
} else {
portMappings, err := plugin.host.GetPodPortMappings(id.ID)
if err != nil {
return err
}
if portMappings != nil && len(portMappings) > 0 {
if err := plugin.hostportManager.Add(id.ID, &hostport.PodPortMapping{
Namespace: namespace,
Name: name,
PortMappings: portMappings,
IP: ip4,
HostNetwork: false,
}, BridgeName); err != nil {
return err
}
}
}
// Open any hostports the pod's containers want
activePodPortMapping, err := plugin.getPodPortMapping()
if err != nil {
return err
}
newPodPortMapping := constructPodPortMapping(pod, ip4)
if err := plugin.hostportSyncer.OpenPodHostportsAndSync(newPodPortMapping, BridgeName, activePodPortMapping); err != nil {
return err
}
return nil
}
@ -467,18 +485,29 @@ func (plugin *kubenetNetworkPlugin) teardown(namespace string, name string, id k
// The host can choose to not support "legacy" features. The remote
// shim doesn't support it (#35457), but the kubelet does.
if !plugin.host.SupportsLegacyFeatures() {
return utilerrors.NewAggregate(errList)
if plugin.host.SupportsLegacyFeatures() {
activePodPortMapping, err := plugin.getPodPortMapping()
if err == nil {
err = plugin.hostportSyncer.SyncHostports(BridgeName, activePodPortMapping)
}
if err != nil {
errList = append(errList, err)
}
} else {
portMappings, err := plugin.host.GetPodPortMappings(id.ID)
if err != nil {
errList = append(errList, err)
} else if portMappings != nil && len(portMappings) > 0 {
if err = plugin.hostportManager.Remove(id.ID, &hostport.PodPortMapping{
Namespace: namespace,
Name: name,
PortMappings: portMappings,
HostNetwork: false,
}); err != nil {
errList = append(errList, err)
}
}
}
activePodPortMapping, err := plugin.getPodPortMapping()
if err == nil {
err = plugin.hostportSyncer.SyncHostports(BridgeName, activePodPortMapping)
}
if err != nil {
errList = append(errList, err)
}
return utilerrors.NewAggregate(errList)
}

1
pkg/kubelet/network/testing/BUILD
View File

@ -16,6 +16,7 @@ go_library(
"//pkg/client/clientset_generated/clientset:go_default_library",
"//pkg/kubelet/container:go_default_library",
"//pkg/kubelet/container/testing:go_default_library",
"//pkg/kubelet/network/hostport:go_default_library",
],
)