mirror of
https://github.com/kubernetes-sigs/node-feature-discovery.git
synced 2024-12-14 11:57:51 +00:00
53ddf081da
Signed-off-by: Tobias Giese <tgiese@nvidia.com>
168 lines
6 KiB
Go
168 lines
6 KiB
Go
/*
|
|
Copyright 2019-2021 The Kubernetes 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"
|
|
"fmt"
|
|
"os"
|
|
|
|
"k8s.io/klog/v2"
|
|
|
|
"sigs.k8s.io/node-feature-discovery/pkg/features"
|
|
worker "sigs.k8s.io/node-feature-discovery/pkg/nfd-worker"
|
|
"sigs.k8s.io/node-feature-discovery/pkg/utils"
|
|
klogutils "sigs.k8s.io/node-feature-discovery/pkg/utils/klog"
|
|
"sigs.k8s.io/node-feature-discovery/pkg/version"
|
|
)
|
|
|
|
const (
|
|
// ProgramName is the canonical name of this program
|
|
ProgramName = "nfd-worker"
|
|
)
|
|
|
|
func main() {
|
|
flags := flag.NewFlagSet(ProgramName, flag.ExitOnError)
|
|
|
|
printVersion := flags.Bool("version", false, "Print version and exit.")
|
|
|
|
// Add FeatureGates flag
|
|
if err := features.NFDMutableFeatureGate.Add(features.DefaultNFDFeatureGates); err != nil {
|
|
klog.ErrorS(err, "failed to add default feature gates")
|
|
os.Exit(1)
|
|
}
|
|
features.NFDMutableFeatureGate.AddFlag(flags)
|
|
|
|
args := parseArgs(flags, os.Args[1:]...)
|
|
|
|
if *printVersion {
|
|
fmt.Println(ProgramName, version.Get())
|
|
os.Exit(0)
|
|
}
|
|
|
|
// Assert that the version is known
|
|
if version.Undefined() {
|
|
klog.InfoS("version not set! Set -ldflags \"-X sigs.k8s.io/node-feature-discovery/pkg/version.version=`git describe --tags --dirty --always`\" during build or run.")
|
|
}
|
|
|
|
// Check deprecated flags
|
|
flags.Visit(func(f *flag.Flag) {
|
|
switch f.Name {
|
|
case "ca-file":
|
|
klog.InfoS("-ca-file is deprecated, will be removed in a future release along with the deprecated gRPC API")
|
|
case "cert-file":
|
|
klog.InfoS("-cert-file is deprecated, will be removed in a future release along with the deprecated gRPC API")
|
|
case "key-file":
|
|
klog.InfoS("-key-file is deprecated, will be removed in a future release along with the deprecated gRPC API")
|
|
case "server":
|
|
klog.InfoS("-server is deprecated, will be removed in a future release along with the deprecated gRPC API")
|
|
case "server-name-override":
|
|
klog.InfoS("-server-name-override is deprecated, will be removed in a future release along with the deprecated gRPC API")
|
|
}
|
|
})
|
|
|
|
// Plug klog into grpc logging infrastructure
|
|
utils.ConfigureGrpcKlog()
|
|
|
|
// Get new NfdWorker instance
|
|
instance, err := worker.NewNfdWorker(worker.WithArgs(args))
|
|
if err != nil {
|
|
klog.ErrorS(err, "failed to initialize NfdWorker instance")
|
|
os.Exit(1)
|
|
}
|
|
|
|
if err = instance.Run(); err != nil {
|
|
klog.ErrorS(err, "error while running")
|
|
os.Exit(1)
|
|
}
|
|
}
|
|
|
|
func parseArgs(flags *flag.FlagSet, osArgs ...string) *worker.Args {
|
|
args, overrides := initFlags(flags)
|
|
|
|
_ = flags.Parse(osArgs)
|
|
if len(flags.Args()) > 0 {
|
|
fmt.Fprintf(flags.Output(), "unknown command line argument: %s\n", flags.Args()[0])
|
|
flags.Usage()
|
|
os.Exit(2)
|
|
}
|
|
|
|
// Handle overrides
|
|
flags.Visit(func(f *flag.Flag) {
|
|
switch f.Name {
|
|
case "no-publish":
|
|
args.Overrides.NoPublish = overrides.NoPublish
|
|
case "feature-sources":
|
|
args.Overrides.FeatureSources = overrides.FeatureSources
|
|
case "label-sources":
|
|
args.Overrides.LabelSources = overrides.LabelSources
|
|
}
|
|
})
|
|
|
|
return args
|
|
}
|
|
|
|
func initFlags(flagset *flag.FlagSet) (*worker.Args, *worker.ConfigOverrideArgs) {
|
|
args := &worker.Args{}
|
|
|
|
flagset.StringVar(&args.CaFile, "ca-file", "",
|
|
"Root certificate for verifying connections."+
|
|
" DEPRECATED: will be removed in a future release along with the deprecated gRPC API.")
|
|
flagset.StringVar(&args.CertFile, "cert-file", "",
|
|
"Certificate used for authenticating connections."+
|
|
" DEPRECATED: will be removed in a future release along with the deprecated gRPC API.")
|
|
flagset.StringVar(&args.ConfigFile, "config", "/etc/kubernetes/node-feature-discovery/nfd-worker.conf",
|
|
"Config file to use.")
|
|
flagset.StringVar(&args.KeyFile, "key-file", "",
|
|
"Private key matching -cert-file."+
|
|
" DEPRECATED: will be removed in a future release along with the deprecated gRPC API.")
|
|
flagset.StringVar(&args.Kubeconfig, "kubeconfig", "",
|
|
"Kubeconfig to use")
|
|
flagset.BoolVar(&args.Oneshot, "oneshot", false,
|
|
"Do not publish feature labels")
|
|
flagset.IntVar(&args.MetricsPort, "metrics", 8081,
|
|
"Port on which to expose metrics.")
|
|
flagset.IntVar(&args.GrpcHealthPort, "grpc-health", 8082,
|
|
"Port on which to expose the grpc health endpoint.")
|
|
flagset.StringVar(&args.Options, "options", "",
|
|
"Specify config options from command line. Config options are specified "+
|
|
"in the same format as in the config file (i.e. json or yaml). These options")
|
|
flagset.StringVar(&args.Server, "server", "localhost:8080",
|
|
"NFD server address to connecto to."+
|
|
" DEPRECATED: will be removed in a future release along with the deprecated gRPC API.")
|
|
flagset.StringVar(&args.ServerNameOverride, "server-name-override", "",
|
|
"Hostname expected from server certificate, useful in testing."+
|
|
" DEPRECATED: will be removed in a future release along with the deprecated gRPC API.")
|
|
|
|
args.Klog = klogutils.InitKlogFlags(flagset)
|
|
|
|
// Flags overlapping with config file options
|
|
overrides := &worker.ConfigOverrideArgs{
|
|
FeatureSources: &utils.StringSliceVal{},
|
|
LabelSources: &utils.StringSliceVal{},
|
|
}
|
|
overrides.NoPublish = flagset.Bool("no-publish", false,
|
|
"Do not publish discovered features, disable connection to nfd-master and don't create NodeFeature object.")
|
|
flagset.Var(overrides.FeatureSources, "feature-sources",
|
|
"Comma separated list of feature sources. Special value 'all' enables all sources. "+
|
|
"Prefix the source name with '-' to disable it.")
|
|
flagset.Var(overrides.LabelSources, "label-sources",
|
|
"Comma separated list of label sources. Special value 'all' enables all sources. "+
|
|
"Prefix the source name with '-' to disable it.")
|
|
|
|
return args, overrides
|
|
}
|