// GetNetworkByName function returns a network for a given network name.
// If no network name is given, the default network is returned.
func (daemon *Daemon) GetNetworkByName(name string) (libnetwork.Network, error) {
c := daemon.netController
if c == nil {
return nil, libnetwork.ErrNoSuchNetwork(name)
}
if name == "" {
name = c.Config().Daemon.DefaultNetwork
}
return c.NetworkByName(name)
}
// NetworkByID returns the Network which has the passed id. If not found, the error ErrNoSuchNetwork is returned.
func (c *remoteController) NetworkByID(id string) (libnetwork.Network, error) {
n := networkResource{}
if err := c.httpGet(path.Join("/networks", id), &n); err != nil {
if se, ok := err.(httpStatusErr); ok && se.Code() == http.StatusNotFound {
return nil, libnetwork.ErrNoSuchNetwork(id)
}
return nil, err
}
return &remoteNetwork{c, n}, nil
}
// GetNetworkByID function returns a network whose ID begins with the given prefix.
// It fails with an error if no matching, or more than one matching, networks are found.
func (daemon *Daemon) GetNetworkByID(partialID string) (libnetwork.Network, error) {
list := daemon.GetNetworksByID(partialID)
if len(list) == 0 {
return nil, libnetwork.ErrNoSuchNetwork(partialID)
}
if len(list) > 1 {
return nil, libnetwork.ErrInvalidID(partialID)
}
return list[0], nil
}
// NetworkByName returns the Network which has the passed name. If not found, the error ErrNoSuchNetwork is returned.
func (c *remoteController) NetworkByName(name string) (libnetwork.Network, error) {
ns := []networkResource{}
if err := c.httpGet("/networks?name="+name, &ns); err != nil {
return nil, err
}
if len(ns) == 0 {
return nil, libnetwork.ErrNoSuchNetwork(name)
}
return &remoteNetwork{c, ns[0]}, nil
}
// GetNetwork function returns a network for a given string that represents the network and
// a hint to indicate if the string is an Id or Name of the network
func (daemon *Daemon) GetNetwork(idName string, by int) (libnetwork.Network, error) {
c := daemon.netController
switch by {
case NetworkByID:
list := daemon.GetNetworksByID(idName)
if len(list) == 0 {
return nil, libnetwork.ErrNoSuchNetwork(idName)
}
if len(list) > 1 {
return nil, libnetwork.ErrInvalidID(idName)
}
return list[0], nil
case NetworkByName:
if idName == "" {
idName = c.Config().Daemon.DefaultNetwork
}
return c.NetworkByName(idName)
}
return nil, errors.New("unexpected selector for GetNetwork")
}