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  • Thumbnail for GraphQL and gRPC

    GraphQL and gRPC

    Big Picture For inter-process communication at a high level, the two styles are asynchronous and synchronous styles: RPCs, built on top of TCP/UDP, are usually…

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  • Thumbnail for Etcd – the key-value store for Kubernetes

    Etcd – the key-value store for Kubernetes

    Etcd in Kubernetes In Kubernetes architecture, etcd is the data store. It stores the desired state of Kubernetes object. API server is the only client…

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  • Thumbnail for Service Proxy – from Nginx to Envoy

    Service Proxy – from Nginx to Envoy

    Update (Nov 20, 2022): 1. Envoy’s configuration schema can be hard to get used to. It is lacking examples because the documentation is mostly generated.…

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  • Thumbnail for Istio External Authorization via OIDC

    Istio External Authorization via OIDC

    Istio service mesh allows application developers to offload non-core features to infrastructure layer. We explored authentication and authorization with Istio in a basic lab. In…

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  • Thumbnail for From Microservice to Service Mesh

    From Microservice to Service Mesh

    We all know what microservice is now but how does service mesh assist with microservice development. Microservice Microservice as an architecture was firstly conceptualized in…

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