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main.go
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main.go
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// Copyright 2024 k8s-crafts 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 main
import (
"flag"
"os"
plugin "github.com/k8s-crafts/ephemeral-containers-plugin/cmd/ephemeral-containers"
"github.com/k8s-crafts/ephemeral-containers-plugin/pkg/out"
"github.com/spf13/pflag"
klog "k8s.io/klog/v2"
)
func main() {
// Add go FlagSet (i.e. from klog) to pflag
pflag.CommandLine.ParseErrorsWhitelist.UnknownFlags = true
pflag.CommandLine.AddGoFlagSet(flag.CommandLine)
// Resovle ErrHelp: pflag: help requested
// ErrHelp is the error when the flag -help is invoked but no such flag is defined.
// At this point, it is not yet defined. This works as a placerholder and will be correctly overriden later when cobra is initialized
pflag.BoolP("help", "h", false, "")
pflag.Parse()
// Override flags if applicable but take user's preferences if any
if !pflag.CommandLine.Changed("logtostderr") {
if err := pflag.Set("logtostderr", "false"); err != nil {
klog.Errorf("Failed to set default flag for logtostderr: %v", err)
}
}
if !pflag.CommandLine.Changed("alsologtostderr") {
if err := pflag.Set("alsologtostderr", "false"); err != nil {
klog.Errorf("Failed to set default flag for alsologtostderr: %v", err)
}
}
// Initialize the out and err destinations
out.SetOutFile(os.Stdout)
out.SetErrFile(os.Stderr)
// Execute the command
plugin.Execute()
}