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defaults.go
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defaults.go
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// Copyright 2018 Authors of Cilium
//
// 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 workloads
import (
"context"
"time"
"github.com/cilium/cilium/pkg/endpoint"
"github.com/cilium/cilium/pkg/endpointmanager"
"github.com/cilium/cilium/pkg/k8s"
"github.com/cilium/cilium/pkg/labels"
k8sLbls "k8s.io/kubernetes/pkg/kubelet/types"
)
const (
// EndpointCorrelationMaxRetries is the number of retries to correlate
// a workload start event with an existing endpoint before giving up.
EndpointCorrelationMaxRetries = 20
)
// EndpointCorrelationSleepTime returns the sleep time between correlation
// attempts
func EndpointCorrelationSleepTime(try int) time.Duration {
return time.Duration(try) * time.Second
}
func shortContainerID(id string) string {
if len(id) < 10 {
return id
}
return id[:10]
}
func getFilteredLabels(containerID string, allLabels map[string]string) (identityLabels, informationLabels labels.Labels) {
combinedLabels := labels.Map2Labels(allLabels, labels.LabelSourceContainer)
k8sNormalLabels, err := fetchK8sLabels(containerID, allLabels)
if err != nil {
log.WithError(err).Warn("Error while getting Kubernetes labels")
} else if k8sNormalLabels != nil {
k8sLbls := labels.Map2Labels(k8sNormalLabels, labels.LabelSourceK8s)
combinedLabels.MergeLabels(k8sLbls)
}
return labels.FilterLabels(combinedLabels)
}
func processCreateWorkload(ep *endpoint.Endpoint, containerID string, allLabels map[string]string) {
ep.SetContainerID(containerID)
// FIXME: Remove this in 2019-06: GH-6526
if k8s.IsEnabled() && ep.GetK8sPodName() == "" {
ep.SetK8sNamespace(k8sLbls.GetPodNamespace(allLabels))
ep.SetK8sPodName(k8sLbls.GetPodName(allLabels))
}
// Update map allowing to lookup endpoint by endpoint
// attributes with new attributes set on endpoint
endpointmanager.UpdateReferences(ep)
identityLabels, informationLabels := getFilteredLabels(containerID, allLabels)
ep.UpdateLabels(context.Background(), identityLabels, informationLabels, false)
}