827baea974
* Allow multiple namespaces for builder manager * Enable multiple namespaces for executor informers * Added missing context * helm chart support for multiple namespaces * Directly consume map type from GetInformerForNamespaces fn * Optimize function resolver by choosing namespace-specific informer * helm chart support for multiple namespaces * consider default namespace and move duplicate code to helm template * Improve documentation for fission namespace values Signed-off-by: Sanket Sudake <sanketsudake@gmail.com> Co-authored-by: shubham bansal <shubhambansaliimtgn@gmail.com>
553 lines
22 KiB
Go
553 lines
22 KiB
Go
/*
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Copyright 2016 The Fission 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 canaryconfigmgr
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import (
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"context"
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"fmt"
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"net/url"
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"os"
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"strings"
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"time"
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"github.com/pkg/errors"
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"go.uber.org/zap"
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k8serrors "k8s.io/apimachinery/pkg/api/errors"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/client-go/kubernetes"
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k8sCache "k8s.io/client-go/tools/cache"
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fv1 "github.com/fission/fission/pkg/apis/core/v1"
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"github.com/fission/fission/pkg/generated/clientset/versioned"
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"github.com/fission/fission/pkg/utils"
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)
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const (
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maxRetries = 10
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)
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type canaryConfigMgr struct {
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logger *zap.Logger
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fissionClient versioned.Interface
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kubeClient kubernetes.Interface
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canaryConfigInformer map[string]k8sCache.SharedIndexInformer
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promClient *PrometheusApiClient
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canaryCfgCancelFuncMap *canaryConfigCancelFuncMap
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}
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func MakeCanaryConfigMgr(ctx context.Context, logger *zap.Logger, fissionClient versioned.Interface, kubeClient kubernetes.Interface, prometheusSvc string) (*canaryConfigMgr, error) {
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if prometheusSvc == "" {
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logger.Info("try to retrieve prometheus server information from environment variables")
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var prometheusSvcHost, prometheusSvcPort string
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// handle a case where there is a prometheus server is already installed, try to find the service from env variable
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envVars := os.Environ()
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for _, envVar := range envVars {
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if strings.Contains(envVar, "PROMETHEUS_SERVER_SERVICE_HOST") {
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prometheusSvcHost = getEnvValue(envVar)
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} else if strings.Contains(envVar, "PROMETHEUS_SERVER_SERVICE_PORT") {
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prometheusSvcPort = getEnvValue(envVar)
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}
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if len(prometheusSvcHost) > 0 && len(prometheusSvcPort) > 0 {
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break
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}
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}
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if len(prometheusSvcHost) == 0 && len(prometheusSvcPort) == 0 {
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return nil, errors.New("unable to get prometheus service url")
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}
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prometheusSvc = fmt.Sprintf("http://%v:%v", prometheusSvcHost, prometheusSvcPort)
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}
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logger.Info("try to start canary config manager with prometheus service url", zap.String("prometheus", prometheusSvc))
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_, err := url.Parse(prometheusSvc)
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if err != nil {
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return nil, errors.Errorf("prometheus service url not found/invalid, can't create canary config manager: %v", prometheusSvc)
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}
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promClient, err := MakePrometheusClient(logger, prometheusSvc)
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if err != nil {
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return nil, err
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}
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configMgr := &canaryConfigMgr{
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logger: logger.Named("canary_config_manager"),
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fissionClient: fissionClient,
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kubeClient: kubeClient,
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promClient: promClient,
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canaryCfgCancelFuncMap: makecanaryConfigCancelFuncMap(),
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}
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configMgr.canaryConfigInformer = utils.GetInformersForNamespaces(fissionClient, time.Minute*30, fv1.CanaryConfigResource)
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configMgr.CanaryConfigEventHandlers(ctx)
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return configMgr, nil
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}
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func (canaryCfgMgr *canaryConfigMgr) CanaryConfigEventHandlers(ctx context.Context) {
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for _, informer := range canaryCfgMgr.canaryConfigInformer {
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informer.AddEventHandler(k8sCache.ResourceEventHandlerFuncs{
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AddFunc: func(obj interface{}) {
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canaryConfig := obj.(*fv1.CanaryConfig)
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if canaryConfig.Status.Status == fv1.CanaryConfigStatusPending {
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go canaryCfgMgr.addCanaryConfig(ctx, canaryConfig)
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}
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},
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DeleteFunc: func(obj interface{}) {
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canaryConfig := obj.(*fv1.CanaryConfig)
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go canaryCfgMgr.deleteCanaryConfig(canaryConfig)
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},
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UpdateFunc: func(oldObj interface{}, newObj interface{}) {
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oldConfig := oldObj.(*fv1.CanaryConfig)
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newConfig := newObj.(*fv1.CanaryConfig)
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if oldConfig.ObjectMeta.ResourceVersion != newConfig.ObjectMeta.ResourceVersion &&
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newConfig.Status.Status == fv1.CanaryConfigStatusPending {
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canaryCfgMgr.logger.Info("update canary config invoked",
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zap.String("name", newConfig.ObjectMeta.Name),
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zap.String("namespace", newConfig.ObjectMeta.Namespace),
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zap.String("version", newConfig.ObjectMeta.ResourceVersion))
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go canaryCfgMgr.updateCanaryConfig(ctx, oldConfig, newConfig)
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}
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go canaryCfgMgr.reSyncCanaryConfigs(ctx)
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},
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})
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}
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}
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func (canaryCfgMgr *canaryConfigMgr) Run(ctx context.Context) {
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for _, informer := range canaryCfgMgr.canaryConfigInformer {
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go informer.Run(ctx.Done())
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}
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canaryCfgMgr.logger.Info("started canary configmgr controller")
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}
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func (canaryCfgMgr *canaryConfigMgr) addCanaryConfig(ctx context.Context, canaryConfig *fv1.CanaryConfig) {
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canaryCfgMgr.logger.Debug("addCanaryConfig called", zap.String("canary_config", canaryConfig.ObjectMeta.Name))
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// for each canary config, create a ticker with increment interval
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interval, err := time.ParseDuration(canaryConfig.Spec.WeightIncrementDuration)
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if err != nil {
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canaryCfgMgr.logger.Error("error parsing duration - can't proceed with this canaryConfig",
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zap.Error(err),
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zap.String("duration", canaryConfig.Spec.WeightIncrementDuration),
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zap.String("name", canaryConfig.ObjectMeta.Name),
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zap.String("namespace", canaryConfig.ObjectMeta.Namespace),
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zap.String("version", canaryConfig.ObjectMeta.ResourceVersion))
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return
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}
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ticker := time.NewTicker(interval)
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// create a context cancel func for each canary config. this will be used to cancel the processing of this canary
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// config in the event that it's deleted
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ctx, cancel := context.WithCancel(ctx)
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cacheValue := &CanaryProcessingInfo{
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CancelFunc: &cancel,
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Ticker: ticker,
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}
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err = canaryCfgMgr.canaryCfgCancelFuncMap.assign(&canaryConfig.ObjectMeta, cacheValue)
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if err != nil {
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canaryCfgMgr.logger.Error("error caching canary config",
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zap.Error(err),
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zap.String("name", canaryConfig.ObjectMeta.Name),
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zap.String("namespace", canaryConfig.ObjectMeta.Namespace),
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zap.String("version", canaryConfig.ObjectMeta.ResourceVersion))
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return
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}
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canaryCfgMgr.processCanaryConfig(&ctx, canaryConfig, ticker)
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}
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func (canaryCfgMgr *canaryConfigMgr) processCanaryConfig(ctx *context.Context, canaryConfig *fv1.CanaryConfig, ticker *time.Ticker) {
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quit := make(chan struct{})
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for {
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select {
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case <-(*ctx).Done():
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// this case when someone deleted their canary config in the middle of it being processed
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canaryCfgMgr.logger.Info("cancel func called for canary config",
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zap.String("name", canaryConfig.ObjectMeta.Name),
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zap.String("namespace", canaryConfig.ObjectMeta.Namespace),
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zap.String("version", canaryConfig.ObjectMeta.ResourceVersion))
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err := canaryCfgMgr.canaryCfgCancelFuncMap.remove(&canaryConfig.ObjectMeta)
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if err != nil {
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canaryCfgMgr.logger.Error("error removing canary config",
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zap.Error(err),
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zap.String("name", canaryConfig.ObjectMeta.Name),
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zap.String("namespace", canaryConfig.ObjectMeta.Namespace),
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zap.String("version", canaryConfig.ObjectMeta.ResourceVersion))
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}
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return
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case <-ticker.C:
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// every weightIncrementDuration, check if failureThreshold has reached.
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// if yes, rollback.
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// else, increment the weight of new function and decrement old function by `weightIncrement`
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canaryCfgMgr.logger.Info("processing canary config",
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zap.String("name", canaryConfig.ObjectMeta.Name),
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zap.String("namespace", canaryConfig.ObjectMeta.Namespace),
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zap.String("version", canaryConfig.ObjectMeta.ResourceVersion))
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canaryCfgMgr.RollForwardOrBack(*ctx, canaryConfig, quit, ticker)
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case <-quit:
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// we're done processing this canary config either because the new function receives 100% of the traffic
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// or we rolled back to send all 100% traffic to old function
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canaryCfgMgr.logger.Info("quit processing canaryConfig",
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zap.String("name", canaryConfig.ObjectMeta.Name),
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zap.String("namespace", canaryConfig.ObjectMeta.Namespace),
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zap.String("version", canaryConfig.ObjectMeta.ResourceVersion))
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err := canaryCfgMgr.canaryCfgCancelFuncMap.remove(&canaryConfig.ObjectMeta)
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if err != nil {
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canaryCfgMgr.logger.Error("error removing canary config from map",
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zap.Error(err),
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zap.String("name", canaryConfig.ObjectMeta.Name),
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zap.String("namespace", canaryConfig.ObjectMeta.Namespace),
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zap.String("version", canaryConfig.ObjectMeta.ResourceVersion))
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}
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return
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}
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}
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}
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func (canaryCfgMgr *canaryConfigMgr) RollForwardOrBack(ctx context.Context, canaryConfig *fv1.CanaryConfig, quit chan struct{}, ticker *time.Ticker) {
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// handle race between delete event and notification on ticker.C
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_, err := canaryCfgMgr.canaryCfgCancelFuncMap.lookup(&canaryConfig.ObjectMeta)
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if err != nil {
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canaryCfgMgr.logger.Info("no need of processing the config, not in cache anymore",
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zap.String("name", canaryConfig.ObjectMeta.Name),
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zap.String("namespace", canaryConfig.ObjectMeta.Namespace),
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zap.String("version", canaryConfig.ObjectMeta.ResourceVersion))
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return
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}
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// get the http trigger object associated with this canary config
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triggerObj, err := canaryCfgMgr.fissionClient.CoreV1().HTTPTriggers(canaryConfig.ObjectMeta.Namespace).Get(ctx, canaryConfig.Spec.Trigger, metav1.GetOptions{})
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if err != nil {
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// if the http trigger is not found, then give up processing this config.
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if k8serrors.IsNotFound(err) {
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canaryCfgMgr.logger.Error("http trigger object for canary config missing",
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zap.Error(err),
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zap.String("trigger", canaryConfig.Spec.Trigger),
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zap.String("name", canaryConfig.ObjectMeta.Name),
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zap.String("namespace", canaryConfig.ObjectMeta.Namespace),
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zap.String("version", canaryConfig.ObjectMeta.ResourceVersion))
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close(quit)
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return
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}
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// just silently ignore. wait for next window to increment weight
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canaryCfgMgr.logger.Error("error fetching http trigger object for config",
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zap.Error(err),
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zap.String("name", canaryConfig.ObjectMeta.Name),
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zap.String("namespace", canaryConfig.ObjectMeta.Namespace),
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zap.String("version", canaryConfig.ObjectMeta.ResourceVersion))
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return
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}
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// handle a race between ticker.Stop and receiving a notification on ticker.C
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if canaryConfig.Status.Status != fv1.CanaryConfigStatusPending {
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canaryCfgMgr.logger.Info("no need of processing the config, not pending anymore",
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zap.String("name", canaryConfig.ObjectMeta.Name),
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zap.String("namespace", canaryConfig.ObjectMeta.Namespace),
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zap.String("version", canaryConfig.ObjectMeta.ResourceVersion))
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return
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}
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if triggerObj.Spec.FunctionReference.Type == fv1.FunctionReferenceTypeFunctionWeights &&
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triggerObj.Spec.FunctionReference.FunctionWeights[canaryConfig.Spec.NewFunction] != 0 {
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var urlPath string
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if triggerObj.Spec.Prefix != nil && *triggerObj.Spec.Prefix != "" {
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urlPath = *triggerObj.Spec.Prefix
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} else {
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urlPath = triggerObj.Spec.RelativeURL
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}
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methods := triggerObj.Spec.Methods
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if len(triggerObj.Spec.Method) > 0 {
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present := false
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for _, m := range triggerObj.Spec.Methods {
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if m == triggerObj.Spec.Method {
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present = true
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break
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}
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}
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if !present {
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methods = append(methods, triggerObj.Spec.Method)
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}
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}
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failurePercent, err := canaryCfgMgr.promClient.GetFunctionFailurePercentage(ctx, urlPath, methods,
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canaryConfig.Spec.NewFunction, canaryConfig.ObjectMeta.Namespace, canaryConfig.Spec.WeightIncrementDuration)
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if err != nil {
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// silently ignore. wait for next window to increment weight
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canaryCfgMgr.logger.Error("error calculating failure percentage",
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zap.Error(err),
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zap.String("name", canaryConfig.ObjectMeta.Name),
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zap.String("namespace", canaryConfig.ObjectMeta.Namespace),
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zap.String("version", canaryConfig.ObjectMeta.ResourceVersion))
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return
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}
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canaryCfgMgr.logger.Info("failure percentage calculated for canaryConfig",
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zap.Float64("failure_percent", failurePercent),
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zap.String("name", canaryConfig.ObjectMeta.Name),
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zap.String("namespace", canaryConfig.ObjectMeta.Namespace),
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zap.String("version", canaryConfig.ObjectMeta.ResourceVersion))
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if failurePercent == -1 {
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// this means there were no requests triggered to this url during this window. return here and check back
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// during next iteration
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canaryCfgMgr.logger.Info("total requests received for url is 0", zap.String("url", urlPath))
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return
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}
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if int(failurePercent) > canaryConfig.Spec.FailureThreshold {
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canaryCfgMgr.logger.Error("failure percent crossed the threshold, so rolling back",
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zap.Float64("failure_percent", failurePercent),
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zap.Int("threshold", canaryConfig.Spec.FailureThreshold),
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zap.String("name", canaryConfig.ObjectMeta.Name),
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zap.String("namespace", canaryConfig.ObjectMeta.Namespace),
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zap.String("version", canaryConfig.ObjectMeta.ResourceVersion))
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ticker.Stop()
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err := canaryCfgMgr.rollback(ctx, canaryConfig, triggerObj)
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if err != nil {
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canaryCfgMgr.logger.Error("error rolling back canary config",
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zap.Error(err),
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zap.String("name", canaryConfig.ObjectMeta.Name),
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zap.String("namespace", canaryConfig.ObjectMeta.Namespace),
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zap.String("version", canaryConfig.ObjectMeta.ResourceVersion))
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}
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close(quit)
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return
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}
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}
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doneProcessingCanaryConfig, err := canaryCfgMgr.rollForward(ctx, canaryConfig, triggerObj)
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if err != nil {
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// just log the error and hope that next iteration will succeed
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canaryCfgMgr.logger.Error("error incrementing weights for trigger",
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zap.Error(err),
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zap.String("trigger", triggerObj.ObjectMeta.Name),
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zap.String("name", canaryConfig.ObjectMeta.Name),
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zap.String("namespace", canaryConfig.ObjectMeta.Namespace),
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zap.String("version", canaryConfig.ObjectMeta.ResourceVersion))
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return
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}
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if doneProcessingCanaryConfig {
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ticker.Stop()
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// update the status of canary config as done processing, we don't care if we aren't able to update because
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// resync takes care of the update
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err = canaryCfgMgr.updateCanaryConfigStatusWithRetries(ctx, canaryConfig.ObjectMeta.Name, canaryConfig.ObjectMeta.Namespace,
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fv1.CanaryConfigStatusSucceeded)
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if err != nil {
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// can't do much after max retries other than logging it.
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canaryCfgMgr.logger.Error("error updating canary config after max retries",
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zap.Error(err),
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zap.String("name", canaryConfig.ObjectMeta.Name),
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zap.String("namespace", canaryConfig.ObjectMeta.Namespace),
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zap.String("version", canaryConfig.ObjectMeta.ResourceVersion))
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}
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canaryCfgMgr.logger.Info("done processing canary config - the new function is receiving all the traffic",
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zap.String("name", canaryConfig.ObjectMeta.Name),
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zap.String("namespace", canaryConfig.ObjectMeta.Namespace),
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zap.String("version", canaryConfig.ObjectMeta.ResourceVersion))
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close(quit)
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return
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}
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}
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func (canaryCfgMgr *canaryConfigMgr) updateHttpTriggerWithRetries(ctx context.Context, triggerName, triggerNamespace string, fnWeights map[string]int) (err error) {
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for i := 0; i < maxRetries; i++ {
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triggerObj, err := canaryCfgMgr.fissionClient.CoreV1().HTTPTriggers(triggerNamespace).Get(ctx, triggerName, metav1.GetOptions{})
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if err != nil {
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e := "error getting http trigger object"
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canaryCfgMgr.logger.Error(e, zap.Error(err), zap.String("trigger_name", triggerName), zap.String("trigger_namespace", triggerNamespace))
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return errors.Wrap(err, e)
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}
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triggerObj.Spec.FunctionReference.FunctionWeights = fnWeights
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_, err = canaryCfgMgr.fissionClient.CoreV1().HTTPTriggers(triggerNamespace).Update(ctx, triggerObj, metav1.UpdateOptions{})
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switch {
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case err == nil:
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canaryCfgMgr.logger.Debug("updated http trigger", zap.String("trigger_name", triggerName), zap.String("trigger_namespace", triggerNamespace))
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return nil
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case k8serrors.IsConflict(err):
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canaryCfgMgr.logger.Error("conflict in updating http trigger, retrying",
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zap.Error(err),
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zap.String("trigger_name", triggerName),
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zap.String("trigger_namespace", triggerNamespace))
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continue
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default:
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e := "error updating http trigger"
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canaryCfgMgr.logger.Error(e,
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zap.Error(err),
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zap.String("trigger_name", triggerName),
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zap.String("trigger_namespace", triggerNamespace))
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return errors.Wrapf(err, "%s: %s.%s", e, triggerName, triggerNamespace)
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}
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}
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return err
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}
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func (canaryCfgMgr *canaryConfigMgr) updateCanaryConfigStatusWithRetries(ctx context.Context, cfgName, cfgNamespace string, status string) (err error) {
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for i := 0; i < maxRetries; i++ {
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canaryCfgObj, err := canaryCfgMgr.fissionClient.CoreV1().CanaryConfigs(cfgNamespace).Get(ctx, cfgName, metav1.GetOptions{})
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if err != nil {
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e := "error getting http canary config object"
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canaryCfgMgr.logger.Error(e,
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zap.Error(err),
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zap.String("name", cfgName),
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zap.String("namespace", cfgNamespace),
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zap.String("status", status))
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return errors.Wrap(err, e)
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}
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canaryCfgMgr.logger.Info("updating status of canary config",
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zap.String("name", cfgName),
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zap.String("namespace", cfgNamespace),
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zap.String("status", status))
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canaryCfgObj.Status.Status = status
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_, err = canaryCfgMgr.fissionClient.CoreV1().CanaryConfigs(cfgNamespace).Update(ctx, canaryCfgObj, metav1.UpdateOptions{})
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switch {
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case err == nil:
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canaryCfgMgr.logger.Info("updated canary config",
|
|
zap.String("name", cfgName),
|
|
zap.String("namespace", cfgNamespace))
|
|
return nil
|
|
case k8serrors.IsConflict(err):
|
|
canaryCfgMgr.logger.Info("conflict in updating canary config",
|
|
zap.Error(err),
|
|
zap.String("name", cfgName),
|
|
zap.String("namespace", cfgNamespace))
|
|
continue
|
|
default:
|
|
e := "error updating canary config"
|
|
canaryCfgMgr.logger.Error(e,
|
|
zap.Error(err),
|
|
zap.String("name", cfgName),
|
|
zap.String("namespace", cfgNamespace))
|
|
return errors.Wrapf(err, "%s: %s.%s", e, cfgName, cfgNamespace)
|
|
}
|
|
}
|
|
|
|
return err
|
|
}
|
|
|
|
func (canaryCfgMgr *canaryConfigMgr) rollback(ctx context.Context, canaryConfig *fv1.CanaryConfig, trigger *fv1.HTTPTrigger) error {
|
|
functionWeights := trigger.Spec.FunctionReference.FunctionWeights
|
|
functionWeights[canaryConfig.Spec.NewFunction] = 0
|
|
functionWeights[canaryConfig.Spec.OldFunction] = 100
|
|
|
|
err := canaryCfgMgr.updateHttpTriggerWithRetries(ctx, trigger.ObjectMeta.Name, trigger.ObjectMeta.Namespace, functionWeights)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
err = canaryCfgMgr.updateCanaryConfigStatusWithRetries(ctx, canaryConfig.ObjectMeta.Name, canaryConfig.ObjectMeta.Namespace,
|
|
fv1.CanaryConfigStatusFailed)
|
|
|
|
return err
|
|
}
|
|
|
|
func (canaryCfgMgr *canaryConfigMgr) rollForward(ctx context.Context, canaryConfig *fv1.CanaryConfig, trigger *fv1.HTTPTrigger) (bool, error) {
|
|
doneProcessingCanaryConfig := false
|
|
|
|
functionWeights := trigger.Spec.FunctionReference.FunctionWeights
|
|
if functionWeights[canaryConfig.Spec.NewFunction]+canaryConfig.Spec.WeightIncrement >= 100 {
|
|
doneProcessingCanaryConfig = true
|
|
functionWeights[canaryConfig.Spec.NewFunction] = 100
|
|
functionWeights[canaryConfig.Spec.OldFunction] = 0
|
|
} else {
|
|
functionWeights[canaryConfig.Spec.NewFunction] += canaryConfig.Spec.WeightIncrement
|
|
if functionWeights[canaryConfig.Spec.OldFunction]-canaryConfig.Spec.WeightIncrement < 0 {
|
|
functionWeights[canaryConfig.Spec.OldFunction] = 0
|
|
} else {
|
|
functionWeights[canaryConfig.Spec.OldFunction] -= canaryConfig.Spec.WeightIncrement
|
|
}
|
|
}
|
|
|
|
canaryCfgMgr.logger.Info("incremented functionWeights",
|
|
zap.String("name", canaryConfig.ObjectMeta.Name),
|
|
zap.String("namespace", canaryConfig.ObjectMeta.Namespace),
|
|
zap.Any("function_weights", functionWeights))
|
|
|
|
err := canaryCfgMgr.updateHttpTriggerWithRetries(ctx, trigger.ObjectMeta.Name, trigger.ObjectMeta.Namespace, functionWeights)
|
|
return doneProcessingCanaryConfig, err
|
|
}
|
|
|
|
func (canaryCfgMgr *canaryConfigMgr) reSyncCanaryConfigs(ctx context.Context) {
|
|
for _, informer := range canaryCfgMgr.canaryConfigInformer {
|
|
for _, obj := range informer.GetStore().List() {
|
|
canaryConfig := obj.(*fv1.CanaryConfig)
|
|
_, err := canaryCfgMgr.canaryCfgCancelFuncMap.lookup(&canaryConfig.ObjectMeta)
|
|
if err != nil && canaryConfig.Status.Status == fv1.CanaryConfigStatusPending {
|
|
canaryCfgMgr.logger.Debug("adding canary config from resync loop",
|
|
zap.String("name", canaryConfig.ObjectMeta.Name),
|
|
zap.String("namespace", canaryConfig.ObjectMeta.Namespace),
|
|
zap.String("version", canaryConfig.ObjectMeta.ResourceVersion))
|
|
|
|
// new canaryConfig detected, add it to our cache and start processing it
|
|
go canaryCfgMgr.addCanaryConfig(ctx, canaryConfig)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func (canaryCfgMgr *canaryConfigMgr) deleteCanaryConfig(canaryConfig *fv1.CanaryConfig) {
|
|
canaryCfgMgr.logger.Debug("delete event received for canary config",
|
|
zap.String("name", canaryConfig.ObjectMeta.Name),
|
|
zap.String("namespace", canaryConfig.ObjectMeta.Namespace),
|
|
zap.String("version", canaryConfig.ObjectMeta.ResourceVersion))
|
|
canaryProcessingInfo, err := canaryCfgMgr.canaryCfgCancelFuncMap.lookup(&canaryConfig.ObjectMeta)
|
|
if err != nil {
|
|
canaryCfgMgr.logger.Error("lookup of canary config for deletion failed",
|
|
zap.Error(err),
|
|
zap.String("name", canaryConfig.ObjectMeta.Name),
|
|
zap.String("namespace", canaryConfig.ObjectMeta.Namespace),
|
|
zap.String("version", canaryConfig.ObjectMeta.ResourceVersion))
|
|
return
|
|
}
|
|
// first stop the ticker
|
|
canaryProcessingInfo.Ticker.Stop()
|
|
// call cancel func so that the ctx.Done returns inside processCanaryConfig function and processing gets stopped
|
|
(*canaryProcessingInfo.CancelFunc)()
|
|
}
|
|
|
|
func (canaryCfgMgr *canaryConfigMgr) updateCanaryConfig(ctx context.Context, oldCanaryConfig *fv1.CanaryConfig, newCanaryConfig *fv1.CanaryConfig) {
|
|
// before removing the object from cache, we need to get it's cancel func and cancel it
|
|
canaryCfgMgr.deleteCanaryConfig(oldCanaryConfig)
|
|
|
|
err := canaryCfgMgr.canaryCfgCancelFuncMap.remove(&oldCanaryConfig.ObjectMeta)
|
|
if err != nil {
|
|
canaryCfgMgr.logger.Error("error removing canary config from map",
|
|
zap.Error(err),
|
|
zap.String("name", oldCanaryConfig.ObjectMeta.Name),
|
|
zap.String("namespace", oldCanaryConfig.ObjectMeta.Namespace),
|
|
zap.String("version", oldCanaryConfig.ObjectMeta.ResourceVersion))
|
|
return
|
|
}
|
|
canaryCfgMgr.addCanaryConfig(ctx, newCanaryConfig)
|
|
}
|
|
|
|
func getEnvValue(envVar string) string {
|
|
envVarSplit := strings.Split(envVar, "=")
|
|
return envVarSplit[1]
|
|
}
|