github.com/elfadel/cilium@v1.6.12/pkg/workloads/defaults.go (about)

     1  // Copyright 2018-2019 Authors of Cilium
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package workloads
    16  
    17  import (
    18  	"context"
    19  	"time"
    20  
    21  	"github.com/cilium/cilium/api/v1/models"
    22  	"github.com/cilium/cilium/pkg/endpoint"
    23  	"github.com/cilium/cilium/pkg/endpointmanager"
    24  	"github.com/cilium/cilium/pkg/k8s"
    25  	"github.com/cilium/cilium/pkg/labels"
    26  
    27  	k8sLbls "k8s.io/kubernetes/pkg/kubelet/types"
    28  )
    29  
    30  const (
    31  	// EndpointCorrelationMaxRetries is the number of retries to correlate
    32  	// a workload start event with an existing endpoint before giving up.
    33  	EndpointCorrelationMaxRetries = 20
    34  )
    35  
    36  var (
    37  	workloadStatusDisabled = &models.Status{
    38  		State: models.StatusStateOk,
    39  		Msg:   models.StatusStateDisabled,
    40  	}
    41  )
    42  
    43  // EndpointCorrelationSleepTime returns the sleep time between correlation
    44  // attempts
    45  func EndpointCorrelationSleepTime(try int) time.Duration {
    46  	return time.Duration(try) * time.Second
    47  }
    48  
    49  func shortContainerID(id string) string {
    50  	if len(id) < 10 {
    51  		return id
    52  	}
    53  	return id[:10]
    54  }
    55  
    56  func getFilteredLabels(containerID string, allLabels map[string]string) (identityLabels, informationLabels labels.Labels) {
    57  	combinedLabels := labels.Map2Labels(allLabels, labels.LabelSourceContainer)
    58  
    59  	k8sNormalLabels, err := fetchK8sLabels(containerID, allLabels)
    60  	if err != nil {
    61  		log.WithError(err).Warn("Error while getting Kubernetes labels")
    62  	} else if k8sNormalLabels != nil {
    63  		k8sLbls := labels.Map2Labels(k8sNormalLabels, labels.LabelSourceK8s)
    64  		combinedLabels.MergeLabels(k8sLbls)
    65  	}
    66  
    67  	return labels.FilterLabels(combinedLabels)
    68  }
    69  
    70  func processCreateWorkload(ep *endpoint.Endpoint, containerID string, allLabels map[string]string) {
    71  	ep.SetContainerID(containerID)
    72  
    73  	// FIXME: Remove this in 2019-06: GH-6526
    74  	if k8s.IsEnabled() && ep.GetK8sPodName() == "" {
    75  		ep.SetK8sNamespace(k8sLbls.GetPodNamespace(allLabels))
    76  		ep.SetK8sPodName(k8sLbls.GetPodName(allLabels))
    77  	}
    78  
    79  	// Update map allowing to lookup endpoint by endpoint
    80  	// attributes with new attributes set on endpoint
    81  	endpointmanager.UpdateReferences(ep)
    82  
    83  	identityLabels, informationLabels := getFilteredLabels(containerID, allLabels)
    84  	ep.UpdateLabels(context.Background(), identityLabels, informationLabels, false)
    85  }