5cde14cd7b
This adds the option `resolvConf` to the host-local IPAM configuration. If specified, the plugin will try to parse the file as a resolv.conf(5) type file and return it in the DNS response.
85 lines
2.0 KiB
Go
85 lines
2.0 KiB
Go
// Copyright 2015 CNI authors
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package main
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import (
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"github.com/containernetworking/cni/plugins/ipam/host-local/backend/allocator"
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"github.com/containernetworking/cni/plugins/ipam/host-local/backend/disk"
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"github.com/containernetworking/cni/pkg/skel"
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"github.com/containernetworking/cni/pkg/types"
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"github.com/containernetworking/cni/pkg/version"
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)
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func main() {
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skel.PluginMain(cmdAdd, cmdDel, version.Legacy)
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}
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func cmdAdd(args *skel.CmdArgs) error {
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ipamConf, err := allocator.LoadIPAMConfig(args.StdinData, args.Args)
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if err != nil {
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return err
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}
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r := types.Result{}
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if ipamConf.ResolvConf != "" {
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dns, err := parseResolvConf(ipamConf.ResolvConf)
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if err != nil {
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return err
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}
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r.DNS = *dns
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}
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store, err := disk.New(ipamConf.Name, ipamConf.DataDir)
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if err != nil {
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return err
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}
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defer store.Close()
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allocator, err := allocator.NewIPAllocator(ipamConf, store)
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if err != nil {
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return err
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}
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ipConf, err := allocator.Get(args.ContainerID)
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if err != nil {
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return err
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}
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r.IP4 = ipConf
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return r.Print()
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}
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func cmdDel(args *skel.CmdArgs) error {
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ipamConf, err := allocator.LoadIPAMConfig(args.StdinData, args.Args)
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if err != nil {
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return err
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}
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store, err := disk.New(ipamConf.Name, ipamConf.DataDir)
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if err != nil {
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return err
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}
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defer store.Close()
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ipAllocator, err := allocator.NewIPAllocator(ipamConf, store)
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if err != nil {
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return err
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}
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return ipAllocator.Release(args.ContainerID)
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}
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