mirror of https://github.com/k3s-io/k3s
76 lines
1.9 KiB
Go
76 lines
1.9 KiB
Go
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/*
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Copyright The containerd Authors.
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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 cni
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import (
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cnilibrary "github.com/containernetworking/cni/libcni"
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"github.com/containernetworking/cni/pkg/types/current"
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)
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type Network struct {
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cni cnilibrary.CNI
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config *cnilibrary.NetworkConfigList
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ifName string
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}
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func (n *Network) Attach(ns *Namespace) (*current.Result, error) {
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r, err := n.cni.AddNetworkList(n.config, ns.config(n.ifName))
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if err != nil {
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return nil, err
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}
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return current.NewResultFromResult(r)
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}
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func (n *Network) Remove(ns *Namespace) error {
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return n.cni.DelNetworkList(n.config, ns.config(n.ifName))
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}
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type Namespace struct {
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id string
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path string
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capabilityArgs map[string]interface{}
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args map[string]string
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}
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func newNamespace(id, path string, opts ...NamespaceOpts) (*Namespace, error) {
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ns := &Namespace{
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id: id,
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path: path,
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capabilityArgs: make(map[string]interface{}),
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args: make(map[string]string),
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}
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for _, o := range opts {
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if err := o(ns); err != nil {
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return nil, err
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}
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}
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return ns, nil
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}
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func (ns *Namespace) config(ifName string) *cnilibrary.RuntimeConf {
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c := &cnilibrary.RuntimeConf{
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ContainerID: ns.id,
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NetNS: ns.path,
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IfName: ifName,
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}
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for k, v := range ns.args {
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c.Args = append(c.Args, [2]string{k, v})
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}
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c.CapabilityArgs = ns.capabilityArgs
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return c
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}
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