110 lines
4.4 KiB
Go
110 lines
4.4 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors All rights reserved.
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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 config
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import (
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"io"
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"time"
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"github.com/scalingdata/gcfg"
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)
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const (
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DefaultOfferTTL = 5 * time.Second // duration an offer is viable, prior to being expired
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DefaultOfferLingerTTL = 120 * time.Second // duration an expired offer lingers in history
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DefaultListenerDelay = 1 * time.Second // duration between offer listener notifications
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DefaultUpdatesBacklog = 2048 // size of the pod updates channel
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DefaultFrameworkIdRefreshInterval = 30 * time.Second // interval we update the frameworkId stored in etcd
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DefaultInitialImplicitReconciliationDelay = 15 * time.Second // wait this amount of time after initial registration before attempting implicit reconciliation
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DefaultExplicitReconciliationMaxBackoff = 2 * time.Minute // interval in between internal task status checks/updates
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DefaultExplicitReconciliationAbortTimeout = 30 * time.Second // waiting period after attempting to cancel an ongoing reconciliation
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DefaultInitialPodBackoff = 1 * time.Second
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DefaultMaxPodBackoff = 60 * time.Second
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DefaultHttpHandlerTimeout = 10 * time.Second
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DefaultHttpBindInterval = 5 * time.Second
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)
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// Example scheduler configuration file:
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//
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// [scheduler]
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// info-name = Kubernetes
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// offer-ttl = 5s
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// offer-linger-ttl = 2m
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type ConfigWrapper struct {
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Scheduler Config
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}
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type Config struct {
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OfferTTL WrappedDuration `gcfg:"offer-ttl"`
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OfferLingerTTL WrappedDuration `gcfg:"offer-linger-ttl"`
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ListenerDelay WrappedDuration `gcfg:"listener-delay"`
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UpdatesBacklog int `gcfg:"updates-backlog"`
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FrameworkIdRefreshInterval WrappedDuration `gcfg:"framework-id-refresh-interval"`
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InitialImplicitReconciliationDelay WrappedDuration `gcfg:"initial-implicit-reconciliation-delay"`
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ExplicitReconciliationMaxBackoff WrappedDuration `gcfg:"explicit-reconciliantion-max-backoff"`
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ExplicitReconciliationAbortTimeout WrappedDuration `gcfg:"explicit-reconciliantion-abort-timeout"`
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InitialPodBackoff WrappedDuration `gcfg:"initial-pod-backoff"`
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MaxPodBackoff WrappedDuration `gcfg:"max-pod-backoff"`
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HttpHandlerTimeout WrappedDuration `gcfg:"http-handler-timeout"`
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HttpBindInterval WrappedDuration `gcfg:"http-bind-interval"`
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}
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type WrappedDuration struct {
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time.Duration
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}
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func (wd *WrappedDuration) UnmarshalText(data []byte) error {
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d, err := time.ParseDuration(string(data))
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if err == nil {
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wd.Duration = d
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}
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return err
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}
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func (c *Config) SetDefaults() {
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c.OfferTTL = WrappedDuration{DefaultOfferTTL}
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c.OfferLingerTTL = WrappedDuration{DefaultOfferLingerTTL}
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c.ListenerDelay = WrappedDuration{DefaultListenerDelay}
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c.UpdatesBacklog = DefaultUpdatesBacklog
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c.FrameworkIdRefreshInterval = WrappedDuration{DefaultFrameworkIdRefreshInterval}
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c.InitialImplicitReconciliationDelay = WrappedDuration{DefaultInitialImplicitReconciliationDelay}
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c.ExplicitReconciliationMaxBackoff = WrappedDuration{DefaultExplicitReconciliationMaxBackoff}
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c.ExplicitReconciliationAbortTimeout = WrappedDuration{DefaultExplicitReconciliationAbortTimeout}
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c.InitialPodBackoff = WrappedDuration{DefaultInitialPodBackoff}
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c.MaxPodBackoff = WrappedDuration{DefaultMaxPodBackoff}
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c.HttpHandlerTimeout = WrappedDuration{DefaultHttpHandlerTimeout}
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c.HttpBindInterval = WrappedDuration{DefaultHttpBindInterval}
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}
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func CreateDefaultConfig() *Config {
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c := &Config{}
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c.SetDefaults()
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return c
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}
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func (c *Config) Read(configReader io.Reader) error {
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wrapper := &ConfigWrapper{Scheduler: *c}
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if configReader != nil {
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if err := gcfg.ReadInto(wrapper, configReader); err != nil {
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return err
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}
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*c = wrapper.Scheduler
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}
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return nil
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}
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