76 lines
1.8 KiB
Go
76 lines
1.8 KiB
Go
// Copyright 2016 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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/*
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Noop plugin is a CNI plugin designed for use as a test-double.
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When calling, set the CNI_ARGS env var equal to the path of a file containing
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the JSON encoding of a Debug.
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*/
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package main
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import (
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"errors"
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"fmt"
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"os"
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"strings"
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"github.com/containernetworking/cni/pkg/skel"
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"github.com/containernetworking/cni/plugins/test/noop/debug"
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)
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func debugBehavior(args *skel.CmdArgs, command string) error {
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if !strings.HasPrefix(args.Args, "DEBUG=") {
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fmt.Printf(`{}`)
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os.Stderr.WriteString("CNI_ARGS empty, no debug behavior\n")
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return nil
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}
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debugFilePath := strings.TrimPrefix(args.Args, "DEBUG=")
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debug, err := debug.ReadDebug(debugFilePath)
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if err != nil {
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return err
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}
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debug.CmdArgs = *args
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debug.Command = command
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err = debug.WriteDebug(debugFilePath)
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if err != nil {
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return err
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}
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os.Stderr.WriteString(debug.ReportStderr)
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if debug.ReportError != "" {
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return errors.New(debug.ReportError)
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} else {
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os.Stdout.WriteString(debug.ReportResult)
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}
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return nil
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}
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func cmdAdd(args *skel.CmdArgs) error {
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return debugBehavior(args, "ADD")
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}
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func cmdDel(args *skel.CmdArgs) error {
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return debugBehavior(args, "DEL")
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}
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func main() {
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skel.PluginMain(cmdAdd, cmdDel)
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}
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