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options.go
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options.go
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/*
* Tencent is pleased to support the open source community by making TKEStack
* available.
*
* Copyright (C) 2012-2019 Tencent. All Rights Reserved.
*
* 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
*
* https://opensource.org/licenses/Apache-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 OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*/
package options
import (
"fmt"
"github.com/spf13/pflag"
"github.com/spf13/viper"
genericapiserveroptions "k8s.io/apiserver/pkg/server/options"
apiserveroptions "tkestack.io/tke/pkg/apiserver/options"
storageoptions "tkestack.io/tke/pkg/apiserver/storage/options"
controlleroptions "tkestack.io/tke/pkg/controller/options"
"tkestack.io/tke/pkg/util/cachesize"
"tkestack.io/tke/pkg/util/log"
)
const (
flagMonitorConfig = "monitor-config"
configMonitorConfig = "monitor_config"
)
// Options is the main context object for the TKE monitor.
type Options struct {
Log *log.Options
SecureServing *apiserveroptions.SecureServingOptions
Debug *apiserveroptions.DebugOptions
ETCD *storageoptions.ETCDStorageOptions
Generic *apiserveroptions.GenericOptions
Authentication *apiserveroptions.AuthenticationWithAPIOptions
Authorization *apiserveroptions.AuthorizationOptions
PlatformAPIClient *controlleroptions.APIServerClientOptions
BusinessAPIClient *controlleroptions.APIServerClientOptions
// The Registry will load its initial configuration from this file.
// The path may be absolute or relative; relative paths are under the Monitor's current working directory.
MonitorConfig string
Audit *genericapiserveroptions.AuditOptions
}
// NewOptions creates a new Options with a default config.
func NewOptions(serverName string) *Options {
return &Options{
Log: log.NewOptions(),
Debug: apiserveroptions.NewDebugOptions(),
ETCD: storageoptions.NewETCDStorageOptions("/tke/monitor"),
SecureServing: apiserveroptions.NewSecureServingOptions(serverName, 9455),
Generic: apiserveroptions.NewGenericOptions(),
Authentication: apiserveroptions.NewAuthenticationWithAPIOptions(),
Authorization: apiserveroptions.NewAuthorizationOptions(),
PlatformAPIClient: controlleroptions.NewAPIServerClientOptions("platform", true),
BusinessAPIClient: controlleroptions.NewAPIServerClientOptions("business", false),
Audit: genericapiserveroptions.NewAuditOptions(),
}
}
// AddFlags adds flags for a specific server to the specified FlagSet object.
func (o *Options) AddFlags(fs *pflag.FlagSet) {
o.Log.AddFlags(fs)
o.Debug.AddFlags(fs)
o.ETCD.AddFlags(fs)
o.Generic.AddFlags(fs)
o.SecureServing.AddFlags(fs)
o.Authentication.AddFlags(fs)
o.Authorization.AddFlags(fs)
o.PlatformAPIClient.AddFlags(fs)
o.BusinessAPIClient.AddFlags(fs)
o.Audit.AddFlags(fs)
fs.String(flagMonitorConfig, o.MonitorConfig,
"The Monitor will load its initial configuration from this file. The path may be absolute or relative; relative paths start at the Monitor's current working directory. Omit this flag to use the built-in default configuration values.")
_ = viper.BindPFlag(configMonitorConfig, fs.Lookup(flagMonitorConfig))
}
// ApplyFlags parsing parameters from the command line or configuration file
// to the options instance.
func (o *Options) ApplyFlags() []error {
var errs []error
errs = append(errs, o.Log.ApplyFlags()...)
errs = append(errs, o.Debug.ApplyFlags()...)
errs = append(errs, o.ETCD.ApplyFlags()...)
errs = append(errs, o.Generic.ApplyFlags()...)
errs = append(errs, o.SecureServing.ApplyFlags()...)
errs = append(errs, o.Authentication.ApplyFlags()...)
errs = append(errs, o.Authorization.ApplyFlags()...)
errs = append(errs, o.PlatformAPIClient.ApplyFlags()...)
errs = append(errs, o.BusinessAPIClient.ApplyFlags()...)
o.MonitorConfig = viper.GetString(configMonitorConfig)
return errs
}
// Complete set default Options.
// Should be called after tke-monitor flags parsed.
func (o *Options) Complete() error {
if err := apiserveroptions.CompleteGenericAndSecureOptions(o.Generic, o.SecureServing); err != nil {
return err
}
if o.ETCD.EnableWatchCache {
log.Infof("Initializing cache sizes based on %dMB limit", o.Generic.TargetRAMMB)
sizes := cachesize.NewHeuristicWatchCacheSizes(o.Generic.TargetRAMMB)
if userSpecified, err := genericapiserveroptions.ParseWatchCacheSizes(o.ETCD.WatchCacheSizes); err == nil {
for resource, size := range userSpecified {
sizes[resource] = size
}
}
watchCacheSizes, err := genericapiserveroptions.WriteWatchCacheSizes(sizes)
if err != nil {
return err
}
o.ETCD.WatchCacheSizes = watchCacheSizes
}
if (o.Audit.WebhookOptions.ConfigFile != "" || o.Audit.LogOptions.Path != "") && o.Audit.PolicyFile == "" {
return fmt.Errorf("audit log/webhook config specified, but audit policy file is empty")
}
return nil
}