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.
73 lines
1.9 KiB
Go
73 lines
1.9 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 allocator
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import (
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"encoding/json"
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"fmt"
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"net"
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"github.com/containernetworking/cni/pkg/types"
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)
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// IPAMConfig represents the IP related network configuration.
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type IPAMConfig struct {
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Name string
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Type string `json:"type"`
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RangeStart net.IP `json:"rangeStart"`
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RangeEnd net.IP `json:"rangeEnd"`
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Subnet types.IPNet `json:"subnet"`
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Gateway net.IP `json:"gateway"`
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Routes []types.Route `json:"routes"`
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DataDir string `json:"dataDir"`
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ResolvConf string `json:"resolvConf"`
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Args *IPAMArgs `json:"-"`
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}
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type IPAMArgs struct {
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types.CommonArgs
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IP net.IP `json:"ip,omitempty"`
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}
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type Net struct {
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Name string `json:"name"`
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IPAM *IPAMConfig `json:"ipam"`
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}
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// NewIPAMConfig creates a NetworkConfig from the given network name.
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func LoadIPAMConfig(bytes []byte, args string) (*IPAMConfig, error) {
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n := Net{}
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if err := json.Unmarshal(bytes, &n); err != nil {
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return nil, err
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}
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if args != "" {
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n.IPAM.Args = &IPAMArgs{}
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err := types.LoadArgs(args, n.IPAM.Args)
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if err != nil {
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return nil, err
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}
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}
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if n.IPAM == nil {
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return nil, fmt.Errorf("IPAM config missing 'ipam' key")
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}
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// Copy net name into IPAM so not to drag Net struct around
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n.IPAM.Name = n.Name
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return n.IPAM, nil
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}
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