mirror of
https://github.com/kubernetes-sigs/node-feature-discovery.git
synced 2024-12-14 11:57:51 +00:00
047d0314aa
The fix in a416af51a4 was not enough by
itself and that needs to be applied comprehensively.
92 lines
2.3 KiB
Go
92 lines
2.3 KiB
Go
/*
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Copyright 2023 The Kubernetes Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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package main
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import (
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"flag"
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"fmt"
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"os"
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"time"
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"k8s.io/klog/v2"
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nfdgarbagecollector "sigs.k8s.io/node-feature-discovery/pkg/nfd-gc"
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"sigs.k8s.io/node-feature-discovery/pkg/version"
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)
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const (
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// ProgramName is the canonical name of this program
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ProgramName = "nfd-gc"
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)
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func main() {
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flags := flag.NewFlagSet(ProgramName, flag.ExitOnError)
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printVersion := flags.Bool("version", false, "Print version and exit.")
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args := parseArgs(flags, os.Args[1:]...)
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if *printVersion {
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fmt.Println(ProgramName, version.Get())
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os.Exit(0)
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}
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// Assert that the version is known
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if version.Undefined() {
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klog.InfoS("version not set! Set -ldflags \"-X sigs.k8s.io/node-feature-discovery/pkg/version.version=`git describe --tags --dirty --always --match 'v*'`\" during build or run.")
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}
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// Get new garbage collector instance
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gc, err := nfdgarbagecollector.New(args)
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if err != nil {
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klog.ErrorS(err, "failed to initialize nfd garbage collector instance")
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os.Exit(1)
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}
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if err = gc.Run(); err != nil {
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klog.ErrorS(err, "error while running")
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os.Exit(1)
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}
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}
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func parseArgs(flags *flag.FlagSet, osArgs ...string) *nfdgarbagecollector.Args {
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args := initFlags(flags)
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_ = flags.Parse(osArgs)
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if len(flags.Args()) > 0 {
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fmt.Fprintf(flags.Output(), "unknown command line argument: %s\n", flags.Args()[0])
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flags.Usage()
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os.Exit(2)
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}
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return args
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}
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func initFlags(flagset *flag.FlagSet) *nfdgarbagecollector.Args {
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args := &nfdgarbagecollector.Args{}
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flagset.DurationVar(&args.GCPeriod, "gc-interval", time.Duration(1)*time.Hour,
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"interval between cleanup of obsolete api objects")
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flagset.StringVar(&args.Kubeconfig, "kubeconfig", "",
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"Kubeconfig to use")
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flagset.IntVar(&args.MetricsPort, "metrics", 8081,
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"Port on which to expose metrics.")
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klog.InitFlags(flagset)
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return args
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}
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