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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,114 @@ | ||
| /* | ||
| Copyright 2024 The etcd-operator 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 app | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "os" | ||
| "path/filepath" | ||
| "strings" | ||
|
|
||
| "github.com/aenix-io/etcd-operator/internal/log" | ||
| "github.com/spf13/pflag" | ||
| "github.com/spf13/viper" | ||
| ) | ||
|
|
||
| type Flags struct { | ||
| Kubeconfig string | ||
| MetricsAddress string | ||
| ProbeAddress string | ||
| LeaderElection bool | ||
| SecureMetrics bool | ||
| EnableHTTP2 bool | ||
| DisableWebhooks bool | ||
| LogLevel string | ||
| StacktraceLevel string | ||
| Dev bool | ||
| } | ||
|
|
||
| func ParseCmdLine() Flags { | ||
| pflag.Usage = usage | ||
| pflag.ErrHelp = nil | ||
| pflag.CommandLine = pflag.NewFlagSet(os.Args[0], pflag.ContinueOnError) | ||
|
|
||
| pflag.String("kubeconfig", "", "Path to a kubeconfig. Only required if out-of-cluster.") | ||
| pflag.String("metrics-bind-address", ":8080", "The address the metric endpoint binds to.") | ||
| pflag.String("health-probe-bind-address", ":8081", "The address the probe endpoint binds to.") | ||
| pflag.Bool("leader-elect", false, "Enable leader election for controller manager. "+ | ||
| "Enabling this will ensure there is only one active controller manager.") | ||
| pflag.Bool("metrics-secure", false, "If set the metrics endpoint is served securely.") | ||
| pflag.Bool("enable-http2", false, "If set, HTTP/2 will be enabled for the metrics and webhook servers.") | ||
| pflag.Bool("disable-webhooks", false, "If set, the webhooks will be disabled.") | ||
| pflag.String("log-level", "info", "Logger verbosity level.Applicable values are debug, info, warn, error.") | ||
| pflag.String("stacktrace-level", "error", "Logger level to add stacktrace. "+ | ||
| "Applicable values are debug, info, warn, error.") | ||
| pflag.Bool("dev", false, "development mode.") | ||
|
|
||
| var help bool | ||
| pflag.BoolVarP(&help, "help", "h", false, "Show this help message.") | ||
| err := viper.BindPFlags(pflag.CommandLine) | ||
| if err != nil { | ||
| exitUsage(err) | ||
| } | ||
| viper.SetEnvKeyReplacer(strings.NewReplacer("-", "_")) | ||
| viper.AutomaticEnv() | ||
| err = pflag.CommandLine.Parse(os.Args[1:]) | ||
| if err != nil { | ||
| exitUsage(err) | ||
| } | ||
| if help { | ||
| exitUsage(nil) | ||
| } | ||
|
|
||
| return Flags{ | ||
| Kubeconfig: viper.GetString("kubeconfig"), | ||
| MetricsAddress: viper.GetString("metrics-bind-address"), | ||
| ProbeAddress: viper.GetString("health-probe-bind-address"), | ||
| LeaderElection: viper.GetBool("leader-elect"), | ||
| SecureMetrics: viper.GetBool("metrics-secure"), | ||
| EnableHTTP2: viper.GetBool("enable-http2"), | ||
| DisableWebhooks: viper.GetBool("disable-webhooks"), | ||
| LogLevel: viper.GetString("log-level"), | ||
| StacktraceLevel: viper.GetString("stacktrace-level"), | ||
| Dev: viper.GetBool("dev"), | ||
| } | ||
| } | ||
|
|
||
| func usage() { | ||
| name := filepath.Base(os.Args[0]) | ||
| _, _ = fmt.Fprintf(os.Stderr, "Usage: %s [--option]...\n", name) | ||
| _, _ = fmt.Fprintf(os.Stderr, "Options:\n") | ||
| pflag.PrintDefaults() | ||
| } | ||
|
|
||
| func exitUsage(err error) { | ||
| code := 0 | ||
| if err != nil { | ||
| _, _ = fmt.Fprintf(os.Stderr, "%s: %s\n", filepath.Base(os.Args[0]), err) | ||
| code = 2 | ||
| } | ||
| pflag.Usage() | ||
| os.Exit(code) | ||
| } | ||
|
|
||
| func LogParameters(flags Flags) log.Parameters { | ||
| return log.Parameters{ | ||
| LogLevel: flags.LogLevel, | ||
| StacktraceLevel: flags.StacktraceLevel, | ||
| Development: flags.Dev, | ||
| } | ||
| } |
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