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With the introduction of a driver generic gossip in libnetwork it is not necessary for drivers to run their own gossip protocol (like what overlay driver is doing currently) but instead rely on the gossip instance run centrally in libnetwork. In order to achieve this, certain enhancements to driver api are needed. This api aims to provide these enhancements. The new api provides a way for drivers to register interest on table names of their choice by returning a list of table names of interest as a response to CreateNetwork. By doing that they will get notified if a CRUD operation happened on the tables of their interest, via the newly added EventNotify call. Drivers themselves can add entries to any table during a Join call by invoking AddTableEntry method any number of times during the Join call. These entries lifetime is the same as the endpoint itself. As soon as the container leaves the endpoint, those entries added by driver during that endpoint's Join call will be automatically removed by libnetwork. This action may trigger notification of such deletion to all driver instances in the cluster who have registered interest in that table's notification. Signed-off-by: Jana Radhakrishnan <mrjana@docker.com>
105 lines
2.7 KiB
Go
105 lines
2.7 KiB
Go
package macvlan
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import (
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"net"
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"sync"
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"github.com/docker/libnetwork/datastore"
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"github.com/docker/libnetwork/discoverapi"
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"github.com/docker/libnetwork/driverapi"
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"github.com/docker/libnetwork/osl"
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"github.com/docker/libnetwork/types"
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)
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const (
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vethLen = 7
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containerVethPrefix = "eth"
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vethPrefix = "veth"
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macvlanType = "macvlan" // driver type name
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modePrivate = "private" // macvlan mode private
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modeVepa = "vepa" // macvlan mode vepa
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modeBridge = "bridge" // macvlan mode bridge
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modePassthru = "passthru" // macvlan mode passthrough
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parentOpt = "parent" // parent interface -o parent
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modeOpt = "_mode" // macvlan mode ux opt suffix
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)
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var driverModeOpt = macvlanType + modeOpt // mode --option macvlan_mode
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type endpointTable map[string]*endpoint
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type networkTable map[string]*network
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type driver struct {
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networks networkTable
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sync.Once
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sync.Mutex
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store datastore.DataStore
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}
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type endpoint struct {
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id string
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mac net.HardwareAddr
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addr *net.IPNet
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addrv6 *net.IPNet
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srcName string
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}
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type network struct {
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id string
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sbox osl.Sandbox
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endpoints endpointTable
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driver *driver
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config *configuration
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sync.Mutex
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}
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// Init initializes and registers the libnetwork macvlan driver
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func Init(dc driverapi.DriverCallback, config map[string]interface{}) error {
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c := driverapi.Capability{
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DataScope: datastore.LocalScope,
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}
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d := &driver{
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networks: networkTable{},
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}
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d.initStore(config)
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return dc.RegisterDriver(macvlanType, d, c)
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}
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func (d *driver) NetworkAllocate(id string, option map[string]string, ipV4Data, ipV6Data []driverapi.IPAMData) (map[string]string, error) {
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return nil, types.NotImplementedErrorf("not implemented")
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}
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func (d *driver) NetworkFree(id string) error {
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return types.NotImplementedErrorf("not implemented")
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}
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func (d *driver) EndpointOperInfo(nid, eid string) (map[string]interface{}, error) {
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return make(map[string]interface{}, 0), nil
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}
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func (d *driver) Type() string {
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return macvlanType
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}
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func (d *driver) ProgramExternalConnectivity(nid, eid string, options map[string]interface{}) error {
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return nil
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}
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func (d *driver) RevokeExternalConnectivity(nid, eid string) error {
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return nil
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}
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// DiscoverNew is a notification for a new discovery event
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func (d *driver) DiscoverNew(dType discoverapi.DiscoveryType, data interface{}) error {
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return nil
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}
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// DiscoverDelete is a notification for a discovery delete event
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func (d *driver) DiscoverDelete(dType discoverapi.DiscoveryType, data interface{}) error {
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return nil
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}
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func (d *driver) EventNotify(etype driverapi.EventType, nid, tableName, key string, value []byte) {
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}
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