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It's worth noting that Istio has built-in support for failure injection (i.e. without needing to run a separate service to return 500s): https://istio.io/docs/t

• adlleong 7y ago
  That's right, and there are some interesting trade-offs. Having failure injection built-in is convenient but running a separate service gives you full control over the error responses. This can be useful if you want to simulate responses with error bodies, for example.