gRPC for Service-to-Service Communication

gRPC for Service-to-Service Communication#

gRPC is a high-performance RPC framework that uses HTTP/2 for transport and Protocol Buffers (protobuf) for serialization. For service-to-service communication within a microservices architecture, gRPC offers significant advantages over REST: strongly typed contracts, efficient binary serialization, streaming support, and code generation in every major language.

Why gRPC for Internal Services#

REST with JSON is the standard for public APIs. For internal service-to-service calls, gRPC is often the better choice.

Running Kafka on Kubernetes with Strimzi

Running Kafka on Kubernetes with Strimzi#

Running Kafka on Kubernetes without an operator is painful. You need StatefulSets, headless Services, init containers for broker ID assignment, and careful handling of storage and networking. Strimzi eliminates most of this by managing the entire Kafka lifecycle through Custom Resource Definitions.

Installing Strimzi#

# Option 1: Helm
helm repo add strimzi https://strimzi.io/charts
helm install strimzi strimzi/strimzi-kafka-operator \
  --namespace kafka \
  --create-namespace

# Option 2: Direct YAML install
kubectl create namespace kafka
kubectl apply -f https://strimzi.io/install/latest?namespace=kafka -n kafka

Verify the operator is running: