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moby--moby/libnetwork/cmd/readme_test/readme.go
Alessandro Boch fd43ee1323 Introduce Sandbox entity
- Maps 1 to 1 with container's networking stack
- It holds container's specific nw options which
  before were incorrectly owned by Endpoint.
- Sandbox creation no longer coupled with Endpoint Join,
  sandbox and endpoint have now separate lifecycle.
- LeaveAll naturally replaced by Sandbox.Delete
- some pkg and file renaming in order to have clear
  mapping between structure name and entity ("sandbox")
- Revisited hosts and resolv.conf handling
- Removed from JoinInfo interface capability of setting hosts and resolv.conf paths
- Changed etchosts.Build() to first write the search domains and then the nameservers

Signed-off-by: Alessandro Boch <aboch@docker.com>
2015-08-27 11:19:02 -07:00

67 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 use.
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
}
// Create the sandbox for the containr.
sbx, err := controller.NewSandbox("container1",
libnetwork.OptionHostname("test"),
libnetwork.OptionDomainname("docker.io"))
// A sandbox can join the endpoint via the join api.
// Join accepts Variadic arguments which libnetwork and Drivers can use.
err = ep.Join(sbx)
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)
}
}
}