Set session host

Add ping to L2 router

docker/docker.go

@@ -33,6 +33,7 @@ type DockerApi interface {
 	CreateNetwork(id string) error
 	ConnectNetwork(container, network, ip string) (string, error)
 	GetDaemonInfo() (types.Info, error)
+	GetDaemonHost() string
 	GetSwarmPorts() ([]string, []uint16, error)
 	GetPorts() ([]uint16, error)
 	GetContainerStats(name string) (io.ReadCloser, error)
@@ -102,6 +103,10 @@ func (d *docker) GetDaemonInfo() (types.Info, error) {
 	return d.c.Info(context.Background())
 }
 
+func (d *docker) GetDaemonHost() string {
+	return d.c.DaemonHost()
+}
+
 func (d *docker) GetSwarmPorts() ([]string, []uint16, error) {
 	hosts := []string{}
 	ports := []uint16{}

docker/mock.go

@@ -28,6 +28,11 @@ func (m *Mock) GetDaemonInfo() (types.Info, error) {
 	return args.Get(0).(types.Info), args.Error(1)
 }
 
+func (m *Mock) GetDaemonHost() string {
+	args := m.Called()
+	return args.String(0)
+}
+
 func (m *Mock) GetSwarmPorts() ([]string, []uint16, error) {
 	args := m.Called()
 	return args.Get(0).([]string), args.Get(1).([]uint16), args.Error(2)