caee4a99c9
Vendor updated containers/image and containers/storage, along with any new dependencies they drag in, and updated versions of other dependencies that happen to get pulled in. github.com/coreos/go-systemd/daemon/SdNotify() now takes a boolean to control whether or not it unsets the NOTIFY_SOCKET variable from the calling process's environment. Adapt. github.com/opencontainers/runtime-tools/generate/Generator.AddProcessEnv() now takes the environment variable name and value as two arguments, not one. Adapt. Signed-off-by: Nalin Dahyabhai <nalin@redhat.com>
111 lines
2.7 KiB
Go
111 lines
2.7 KiB
Go
// Copyright 2015 CNI 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 libcni
|
|
|
|
import (
|
|
"encoding/json"
|
|
"fmt"
|
|
"io/ioutil"
|
|
"os"
|
|
"path/filepath"
|
|
"sort"
|
|
)
|
|
|
|
func ConfFromBytes(bytes []byte) (*NetworkConfig, error) {
|
|
conf := &NetworkConfig{Bytes: bytes}
|
|
if err := json.Unmarshal(bytes, &conf.Network); err != nil {
|
|
return nil, fmt.Errorf("error parsing configuration: %s", err)
|
|
}
|
|
return conf, nil
|
|
}
|
|
|
|
func ConfFromFile(filename string) (*NetworkConfig, error) {
|
|
bytes, err := ioutil.ReadFile(filename)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("error reading %s: %s", filename, err)
|
|
}
|
|
return ConfFromBytes(bytes)
|
|
}
|
|
|
|
func ConfFiles(dir string) ([]string, error) {
|
|
// In part, adapted from rkt/networking/podenv.go#listFiles
|
|
files, err := ioutil.ReadDir(dir)
|
|
switch {
|
|
case err == nil: // break
|
|
case os.IsNotExist(err):
|
|
return nil, nil
|
|
default:
|
|
return nil, err
|
|
}
|
|
|
|
confFiles := []string{}
|
|
for _, f := range files {
|
|
if f.IsDir() {
|
|
continue
|
|
}
|
|
fileExt := filepath.Ext(f.Name())
|
|
if fileExt == ".conf" || fileExt == ".json" {
|
|
confFiles = append(confFiles, filepath.Join(dir, f.Name()))
|
|
}
|
|
}
|
|
return confFiles, nil
|
|
}
|
|
|
|
func LoadConf(dir, name string) (*NetworkConfig, error) {
|
|
files, err := ConfFiles(dir)
|
|
switch {
|
|
case err != nil:
|
|
return nil, err
|
|
case len(files) == 0:
|
|
return nil, fmt.Errorf("no net configurations found")
|
|
}
|
|
sort.Strings(files)
|
|
|
|
for _, confFile := range files {
|
|
conf, err := ConfFromFile(confFile)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if conf.Network.Name == name {
|
|
return conf, nil
|
|
}
|
|
}
|
|
return nil, fmt.Errorf(`no net configuration with name "%s" in %s`, name, dir)
|
|
}
|
|
|
|
func InjectConf(original *NetworkConfig, key string, newValue interface{}) (*NetworkConfig, error) {
|
|
config := make(map[string]interface{})
|
|
err := json.Unmarshal(original.Bytes, &config)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("unmarshal existing network bytes: %s", err)
|
|
}
|
|
|
|
if key == "" {
|
|
return nil, fmt.Errorf("key value can not be empty")
|
|
}
|
|
|
|
if newValue == nil {
|
|
return nil, fmt.Errorf("newValue must be specified")
|
|
}
|
|
|
|
config[key] = newValue
|
|
|
|
newBytes, err := json.Marshal(config)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return ConfFromBytes(newBytes)
|
|
}
|