/
node.go
84 lines (67 loc) · 2.55 KB
/
node.go
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/*
* Copyright (C) 2017 Red Hat, Inc.
*
* 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 ofthe 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 specificlanguage governing permissions and
* limitations under the License.
*
*/
package k8s
import (
"fmt"
"github.com/skydive-project/skydive/graffiti/graph"
"github.com/skydive-project/skydive/probe"
v1 "k8s.io/api/core/v1"
"k8s.io/client-go/kubernetes"
)
type nodeHandler struct {
}
func (h *nodeHandler) Dump(obj interface{}) string {
node := obj.(*v1.Node)
return fmt.Sprintf("node{Name: %s}", node.Name)
}
func (h *nodeHandler) Map(obj interface{}) (graph.Identifier, graph.Metadata) {
node := obj.(*v1.Node)
m := NewMetadataFields(&node.ObjectMeta)
for _, a := range node.Status.Addresses {
if a.Type == "Hostname" || a.Type == "InternalIP" || a.Type == "ExternalIP" {
m.SetField(string(a.Type), a.Address)
}
}
m.SetField("Arch", node.Status.NodeInfo.Architecture)
m.SetField("Kernel", node.Status.NodeInfo.KernelVersion)
m.SetField("OS", node.Status.NodeInfo.OperatingSystem)
return graph.Identifier(node.GetUID()), NewMetadata(Manager, "node", m, node, node.Name)
}
func newNodeProbe(client interface{}, g *graph.Graph) Subprobe {
return NewResourceCache(client.(*kubernetes.Clientset).CoreV1().RESTClient(), &v1.Node{}, "nodes", g, &nodeHandler{})
}
func newHostNodeLinker(g *graph.Graph) probe.Handler {
nodeProbe := GetSubprobe(Manager, "node")
if nodeProbe == nil {
return nil
}
hostIndexer := graph.NewMetadataIndexer(g, g, graph.Metadata{"Type": "host"}, "Hostname")
hostIndexer.Start()
nodeIndexer := graph.NewMetadataIndexer(g, nodeProbe, graph.Metadata{"Type": "node"}, MetadataField("Name"))
nodeIndexer.Start()
ml := graph.NewMetadataIndexerLinker(g, hostIndexer, nodeIndexer, NewEdgeMetadata(Manager, "node"))
linker := &Linker{
ResourceLinker: ml.ResourceLinker,
}
ml.AddEventListener(linker)
return linker
}
func newNodePodLinker(g *graph.Graph) probe.Handler {
nodeIndexer := newResourceIndexer(g, Manager, "node", MetadataFields("Name"))
podIndexer := newResourceIndexer(g, Manager, "pod", MetadataFields("Node"))
return newResourceLinker(g, nodeIndexer, podIndexer, NewEdgeMetadata(Manager, "node"))
}