func GraphPath(g *graph.Graph, n *graph.Node) string {
nodes := g.LookupShortestPath(n, graph.Metadata{"Type": "host"}, graph.Metadata{"RelationType": "ownership"})
if len(nodes) > 0 {
return NodePath(nodes).Marshal()
}
return ""
}
func NewNetNSContextByNode(g *graph.Graph, n *graph.Node) (*common.NetNSContext, error) {
name, ok := n.Metadata()["Name"]
if !ok || name == "" {
return nil, fmt.Errorf("No name for node %v", n)
}
ifName := name.(string)
nodes := g.LookupShortestPath(n, graph.Metadata{"Type": "host"}, graph.Metadata{"RelationType": "ownership"})
if len(nodes) == 0 {
return nil, fmt.Errorf("Failed to determine probePath for %s", ifName)
}
for _, node := range nodes {
if node.Metadata()["Type"] == "netns" {
name := node.Metadata()["Name"].(string)
path := node.Metadata()["Path"].(string)
logging.GetLogger().Debugf("Switching to namespace %s (path: %s)", name, path)
return common.NewNetNsContext(path)
}
}
return nil, nil
}