1.安装
kubectl apply -f install/kubernetes/addons/servicegraph.yam
2.查看安装是否成功
kubectl -n istio-system get svc servicegraph
3.测试
1）访问bookinfo事例
2）结果
访问路径说明：
/force/forcegraph.html As explored above, this is an interactive D3.js visualization./dotviz is a static Graphviz visualization./dotgraph provides a DOT serialization./d3graph provides a JSON serialization for D3 visualization./graph provides a generic JSON serialization.