Redis › Redis with Docker & Kubernetes

What Kubernetes resources are typically needed to properly expose and configure a Redis deployment for other applications within the same cluster to use?

Intermediate

Answer

You typically need a Service to provide a stable network endpoint that other applications can connect to, a ConfigMap to manage Redis configuration settings separately from the container image itself, and Secrets to securely store sensitive information like the Redis authentication password rather than embedding it directly in plain configuration files.

apiVersion: v1
kind: Service
metadata:
  name: redis-service
spec:
  selector:
    app: redis
  ports:
  - port: 6379

Real-world example A team deploying Redis on Kubernetes uses a Service for stable connectivity, a ConfigMap for their custom Redis configuration settings, and a Secret to securely store the authentication password, keeping sensitive information properly protected.

Common follow-ups: How do other applications within the cluster actually discover and connect to this Redis Service?;What is the advantage of storing the password in a Secret rather than a ConfigMap?

Redis Security & ACL;Redis Architecture & Installation