func lookupPlugin(name, home string, opts []string, pg plugingetter.PluginGetter) (Driver, error) {
pl, err := pg.Get(name, "GraphDriver", plugingetter.LOOKUP)
if err != nil {
return nil, fmt.Errorf("Error looking up graphdriver plugin %s: %v", name, err)
}
return newPluginDriver(name, home, opts, pl.Client())
}
func validateDriver(driver *api.Driver, pg plugingetter.PluginGetter, pluginType string) error {
if driver == nil {
// It is ok to not specify the driver. We will choose
// a default driver.
return nil
}
if driver.Name == "" {
return grpc.Errorf(codes.InvalidArgument, "driver name: if driver is specified name is required")
}
if strings.ToLower(driver.Name) == networkallocator.DefaultDriver || strings.ToLower(driver.Name) == ipamapi.DefaultIPAM {
return nil
}
p, err := pg.Get(driver.Name, pluginType, plugingetter.Lookup)
if err != nil {
return grpc.Errorf(codes.InvalidArgument, "error during lookup of plugin %s", driver.Name)
}
if p.IsV1() {
return grpc.Errorf(codes.InvalidArgument, "legacy plugin %s of type %s is not supported in swarm mode", driver.Name, pluginType)
}
return nil
}
// validates that the plugins requested with the --authorization-plugin flag are valid AuthzDriver
// plugins present on the host and available to the daemon
func validateAuthzPlugins(requestedPlugins []string, pg plugingetter.PluginGetter) error {
for _, reqPlugin := range requestedPlugins {
if _, err := pg.Get(reqPlugin, authorization.AuthZApiImplements, plugingetter.LOOKUP); err != nil {
return err
}
}
return nil
}
func lookupPlugin(name string, pg plugingetter.PluginGetter, config Options) (Driver, error) {
if !config.ExperimentalEnabled {
return nil, fmt.Errorf("graphdriver plugins are only supported with experimental mode")
}
pl, err := pg.Get(name, "GraphDriver", plugingetter.Acquire)
if err != nil {
return nil, fmt.Errorf("Error looking up graphdriver plugin %s: %v", name, err)
}
return newPluginDriver(name, pl, config)
}