Sanket SudakeandGitHub
6af53807aa
We allow functions to refer to configmap/secrets. We are monitoring all namespaces for config maps and secrets and also allow cross-namespace references. This fix monitors configmaps/secret updates in specific namespaces. Also, we ignore cross-namespace references for configmap/secret updates. Signed-off-by: Sanket Sudake <sanketsudake@gmail.com> Signed-off-by: Sanket Sudake <sanketsudake@gmail.com>
73 lines
2.7 KiB
Go
73 lines
2.7 KiB
Go
/*
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Copyright 2021 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 cms
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import (
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"context"
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"go.uber.org/zap"
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apiv1 "k8s.io/api/core/v1"
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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/executor/executortype"
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"github.com/fission/fission/pkg/generated/clientset/versioned"
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)
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// getConfigmapRelatedFuncs returns functions related to configmap in the same namespace
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func getConfigmapRelatedFuncs(ctx context.Context, logger *zap.Logger, m *metav1.ObjectMeta, fissionClient versioned.Interface) ([]fv1.Function, error) {
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funcList, err := fissionClient.CoreV1().Functions(m.Namespace).List(ctx, metav1.ListOptions{})
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if err != nil {
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return nil, err
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}
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// In future a cache that populates at start and is updated on changes might be better solution
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relatedFunctions := make([]fv1.Function, 0)
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for _, f := range funcList.Items {
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for _, cm := range f.Spec.ConfigMaps {
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if (cm.Name == m.Name) && (cm.Namespace == m.Namespace) {
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relatedFunctions = append(relatedFunctions, f)
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break
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}
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}
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}
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return relatedFunctions, nil
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}
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func ConfigMapEventHandlers(ctx context.Context, logger *zap.Logger, fissionClient versioned.Interface,
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kubernetesClient kubernetes.Interface, types map[fv1.ExecutorType]executortype.ExecutorType) k8sCache.ResourceEventHandlerFuncs {
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return k8sCache.ResourceEventHandlerFuncs{
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AddFunc: func(obj interface{}) {},
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DeleteFunc: func(obj interface{}) {},
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UpdateFunc: func(oldObj interface{}, newObj interface{}) {
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oldCm := oldObj.(*apiv1.ConfigMap)
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newCm := newObj.(*apiv1.ConfigMap)
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if oldCm.ObjectMeta.ResourceVersion != newCm.ObjectMeta.ResourceVersion {
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logger.Debug("Configmap changed",
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zap.String("configmap_name", newCm.ObjectMeta.Name),
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zap.String("configmap_namespace", newCm.ObjectMeta.Namespace))
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funcs, err := getConfigmapRelatedFuncs(ctx, logger, &newCm.ObjectMeta, fissionClient)
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if err != nil {
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logger.Error("Failed to get functions related to configmap", zap.String("configmap_name", newCm.ObjectMeta.Name), zap.String("configmap_namespace", newCm.ObjectMeta.Namespace))
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}
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refreshPods(ctx, logger, funcs, types)
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}
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},
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}
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}
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