mirror of https://github.com/k3s-io/k3s
78 lines
2.0 KiB
Go
78 lines
2.0 KiB
Go
/*
|
|
Copyright The containerd Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package cni
|
|
|
|
import (
|
|
"context"
|
|
|
|
cnilibrary "github.com/containernetworking/cni/libcni"
|
|
"github.com/containernetworking/cni/pkg/types/current"
|
|
)
|
|
|
|
type Network struct {
|
|
cni cnilibrary.CNI
|
|
config *cnilibrary.NetworkConfigList
|
|
ifName string
|
|
}
|
|
|
|
func (n *Network) Attach(ctx context.Context, ns *Namespace) (*current.Result, error) {
|
|
r, err := n.cni.AddNetworkList(ctx, n.config, ns.config(n.ifName))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return current.NewResultFromResult(r)
|
|
}
|
|
|
|
func (n *Network) Remove(ctx context.Context, ns *Namespace) error {
|
|
return n.cni.DelNetworkList(ctx, n.config, ns.config(n.ifName))
|
|
}
|
|
|
|
type Namespace struct {
|
|
id string
|
|
path string
|
|
capabilityArgs map[string]interface{}
|
|
args map[string]string
|
|
}
|
|
|
|
func newNamespace(id, path string, opts ...NamespaceOpts) (*Namespace, error) {
|
|
ns := &Namespace{
|
|
id: id,
|
|
path: path,
|
|
capabilityArgs: make(map[string]interface{}),
|
|
args: make(map[string]string),
|
|
}
|
|
for _, o := range opts {
|
|
if err := o(ns); err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
return ns, nil
|
|
}
|
|
|
|
func (ns *Namespace) config(ifName string) *cnilibrary.RuntimeConf {
|
|
c := &cnilibrary.RuntimeConf{
|
|
ContainerID: ns.id,
|
|
NetNS: ns.path,
|
|
IfName: ifName,
|
|
}
|
|
for k, v := range ns.args {
|
|
c.Args = append(c.Args, [2]string{k, v})
|
|
}
|
|
c.CapabilityArgs = ns.capabilityArgs
|
|
return c
|
|
}
|