681f75ddd0
This PR adds license for all files. It also adds a script hack/verify-boilerplate.sh for checking whether license is set correctly. Change-Id: Ib691187f3128f6787510aa914d5c0e01e8e1b22f Signed-off-by: Pengfei Ni <feiskyer@gmail.com>
90 lines
2.8 KiB
Go
90 lines
2.8 KiB
Go
/*
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Copyright (c) 2017 OpenStack Foundation.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package plugins
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import (
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"fmt"
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"sync"
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"github.com/containernetworking/cni/pkg/types/current"
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"github.com/golang/glog"
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"github.com/gophercloud/gophercloud/openstack/networking/v2/ports"
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)
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type PluginInterface interface {
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SetupInterface(podName, podInfraContainerID string, port *ports.Port, ipcidr, gateway, ifName, netns string) (*current.Interface, *current.Interface, error)
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DestroyInterface(podName, podInfraContainerID string, port *ports.Port) error
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Init(integrationBridge string) error
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}
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// Factory is a function that returns a networkplugin.Interface.
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// The config parameter provides an io.Reader handler to the factory in
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// order to load specific configurations. If no configuration is provided
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// the parameter is nil.
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type Factory func() (PluginInterface, error)
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// All registered network plugins.
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var pluginsMutex sync.Mutex
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var plugins = make(map[string]Factory)
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// RegisterNetworkPlugin registers a networkplugin.Factory by name. This
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// is expected to happen during app startup.
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func RegisterNetworkPlugin(name string, networkPlugin Factory) {
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pluginsMutex.Lock()
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defer pluginsMutex.Unlock()
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if _, found := plugins[name]; found {
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glog.Fatalf("Network plugin %q was registered twice", name)
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}
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glog.V(1).Infof("Registered network plugin %q", name)
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plugins[name] = networkPlugin
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}
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// GetNetworkPlugin creates an instance of the named network plugin, or nil if
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// the name is not known. The error return is only used if the named plugin
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// was known but failed to initialize.
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func GetNetworkPlugin(name string) (PluginInterface, error) {
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pluginsMutex.Lock()
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defer pluginsMutex.Unlock()
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f, found := plugins[name]
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if !found {
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return nil, nil
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}
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return f()
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}
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// InitNetworkPlugin creates an instance of the named networkPlugin plugin.
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func InitNetworkPlugin(name string) (PluginInterface, error) {
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var networkPlugin PluginInterface
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if name == "" {
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glog.Info("No network plugin specified.")
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return nil, nil
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}
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var err error
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networkPlugin, err = GetNetworkPlugin(name)
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if err != nil {
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return nil, fmt.Errorf("could not init networkPlugin plugin %q: %v", name, err)
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}
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if networkPlugin == nil {
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return nil, fmt.Errorf("unknown networkPlugin plugin %q", name)
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}
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return networkPlugin, nil
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}
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