66 lines
1.8 KiB
Go
66 lines
1.8 KiB
Go
package main
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"github.com/docker/libnetwork"
|
|
"github.com/docker/libnetwork/netlabel"
|
|
"github.com/docker/libnetwork/options"
|
|
"github.com/docker/libnetwork/types"
|
|
)
|
|
|
|
func main() {
|
|
// Create a new controller instance
|
|
controller, err := libnetwork.New()
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
// Select and configure the network driver
|
|
networkType := "bridge"
|
|
|
|
driverOptions := options.Generic{}
|
|
genericOption := make(map[string]interface{})
|
|
genericOption[netlabel.GenericData] = driverOptions
|
|
err = controller.ConfigureNetworkDriver(networkType, genericOption)
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
// Create a network for containers to join.
|
|
// NewNetwork accepts Variadic optional arguments that libnetwork and Drivers can make of
|
|
network, err := controller.NewNetwork(networkType, "network1")
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
// For each new container: allocate IP and interfaces. The returned network
|
|
// settings will be used for container infos (inspect and such), as well as
|
|
// iptables rules for port publishing. This info is contained or accessible
|
|
// from the returned endpoint.
|
|
ep, err := network.CreateEndpoint("Endpoint1")
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
// A container can join the endpoint by providing the container ID to the join
|
|
// api.
|
|
// Join accepts Variadic arguments which will be made use of by libnetwork and Drivers
|
|
err = ep.Join("container1",
|
|
libnetwork.JoinOptionHostname("test"),
|
|
libnetwork.JoinOptionDomainname("docker.io"))
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
// libnetwork client can check the endpoint's operational data via the Info() API
|
|
epInfo, err := ep.DriverInfo()
|
|
mapData, ok := epInfo[netlabel.PortMap]
|
|
if ok {
|
|
portMapping, ok := mapData.([]types.PortBinding)
|
|
if ok {
|
|
fmt.Printf("Current port mapping for endpoint %s: %v", ep.Name(), portMapping)
|
|
}
|
|
}
|
|
}
|