TOML based Configuration support for libnetwork

Signed-off-by: Madhu Venugopal <madhu@docker.com>

cmd/dnet/dnet.go

@@ -106,7 +106,7 @@ type dnetConnection struct {
 }
 
 func (d *dnetConnection) dnetDaemon() error {
-	controller, err := libnetwork.New()
+	controller, err := libnetwork.New("")
 	if err != nil {
 		fmt.Println("Error starting dnetDaemon :", err)
 		return err

cmd/readme_test/readme.go

@@ -11,7 +11,7 @@ import (
 
 func main() {
 	// Create a new controller instance
-	controller, err := libnetwork.New()
+	controller, err := libnetwork.New("/etc/default/libnetwork.toml")
 	if err != nil {
 		return
 	}

cmd/test/libnetwork.toml

@@ -0,0 +1,12 @@
+title = "LibNetwork Configuration file"
+
+[daemon]
+  debug = false
+[cluster]
+  discovery = "token://swarm-discovery-token"
+  Address = "Cluster-wide reachable Host IP"
+[datastore]
+  embedded = false
+[datastore.client]
+  provider = "consul"
+  Address = "localhost:8500"

cmd/test/main.go

@@ -4,25 +4,32 @@ import (
 	"fmt"
 	"log"
 	"net"
+	"os"
+	"time"
 
 	"github.com/docker/libnetwork"
 	"github.com/docker/libnetwork/options"
 )
 
 func main() {
+	os.Setenv("LIBNETWORK_CFG", "libnetwork.toml")
+	controller, err := libnetwork.New("libnetwork.toml")
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	netType := "null"
 	ip, net, _ := net.ParseCIDR("192.168.100.1/24")
 	net.IP = ip
-
 	options := options.Generic{"AddressIPv4": net}
-	controller, err := libnetwork.New()
-	if err != nil {
-		log.Fatal(err)
-	}
-	netType := "bridge"
+
 	err = controller.ConfigureNetworkDriver(netType, options)
-	netw, err := controller.NewNetwork(netType, "dummy")
-	if err != nil {
-		log.Fatal(err)
+	for i := 0; i < 100; i++ {
+		netw, err := controller.NewNetwork(netType, fmt.Sprintf("Gordon-%d", i))
+		if err != nil {
+			log.Fatal(err)
+		}
+		fmt.Println("Network Created Successfully :", netw)
+		time.Sleep(10 * time.Second)
 	}
-	fmt.Printf("Network=%#v\n", netw)
 }