February 2019
Intermediate to advanced
444 pages
11h 36m
English
Content preview from Mastering Distributed TracingBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Using Istio to generate a service graph
We have already seen an example of a service graph earlier in this chapter (Figure 7.3). Istio provides another utility service called servicegraph, which is able to generate a similar service graph without the help of tracing. To enable access to that service, we again need to set up port forwarding, which we can do with this Makefile target:
$ make service-graph kubectl -n istio-system port-forward $(kubectl get pod -n istio-system -l app=servicegraph -o jsonpath='{.items[0].metadata.name}') 8088:8088 Forwarding from 127.0.0.1:8088 -> 8088 Forwarding from [::1]:8088 -> 8088
This allows us to access the service at http://localhost:8088/. However, the service does not have a home page in the version of Istio ...
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