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 }