SRE

gRPC NGINX gRPC k8s In a previous post we saw an NGINX configuration to allow gRPC traffic mirroring. Is the same technique applicable on Kubernetes? Yes! Using the ingress-nginx ingress controller! Traffic mirroring Use the following configurations snippets in the ingress-nginx configMap and in the Ingress manifest to mirror all traffic to a separate gRPC server. ConfigMap Replace grpc-backend.company.net and grpc-mirror.company.net with the original and mirror endpoint, respectively. http-snippet: | server { listen 127. [Read More]

gRPC NGINX gRPC Recently at work with the Optimyze team we faced the necessity of copying traffic from our current customer-facing environment to a new environment. We have assumptions and ideas about architectural changes that cannot be validated only with synthetic tests and require cloning traffic to a separate, internal testing environment. There is no better test than the one performed with real-world data: when you hear speaking about testing in production, a deployment of a new feature to “see what happens” is not what I have in mind. [Read More]