How do I expose Redis Enterprise as a service with Kubernetes Ingress?

In this guide, we will deploy Redis Enterprise on a Kubernetes cluster and expose it using a Kubernetes Ingress resource. This will allow external access to the Redis Enterprise service through a single IP address or DNS name.

Steps:

Create a Kubernetes Namespace: Organize resources in a specific namespace.
Deploy Redis Enterprise: Deploy the Redis Enterprise service.
Create a Kubernetes Service: Expose the Redis Enterprise deployment internally.
Set up Kubernetes Ingress: Expose the Redis Enterprise service externally.

Key Points:

We will use Kubernetes to manage the Redis Enterprise deployment.
The Kubernetes Ingress resource will handle external access to the Redis service.
The configuration will include setting up the necessary namespace, deployment, service, and ingress.

import * as pulumi from "@pulumi/pulumi";
import * as k8s from "@pulumi/kubernetes";

// Create a Kubernetes Namespace
const namespace = new k8s.core.v1.Namespace("redis-namespace", {
    metadata: { name: "redis-namespace" },
});

// Deploy Redis Enterprise
const redisDeployment = new k8s.apps.v1.Deployment("redis-deployment", {
    metadata: {
        namespace: namespace.metadata.name,
        name: "redis-enterprise",
    },
    spec: {
        replicas: 1,
        selector: {
            matchLabels: { app: "redis-enterprise" },
        },
        template: {
            metadata: {
                labels: { app: "redis-enterprise" },
            },
            spec: {
                containers: [{
                    name: "redis-enterprise",
                    image: "redislabs/redis:latest",
                    ports: [{ containerPort: 6379 }],
                }],
            },
        },
    },
});

// Create a Kubernetes Service
const redisService = new k8s.core.v1.Service("redis-service", {
    metadata: {
        namespace: namespace.metadata.name,
        name: "redis-service",
    },
    spec: {
        selector: { app: "redis-enterprise" },
        ports: [{ port: 6379, targetPort: 6379 }],
        type: "ClusterIP",
    },
});

// Set up Kubernetes Ingress
const redisIngress = new k8s.networking.v1.Ingress("redis-ingress", {
    metadata: {
        namespace: namespace.metadata.name,
        name: "redis-ingress",
        annotations: {
            "nginx.ingress.kubernetes.io/rewrite-target": "/",
        },
    },
    spec: {
        rules: [{
            host: "redis.example.com",
            http: {
                paths: [{
                    path: "/",
                    pathType: "Prefix",
                    backend: {
                        service: {
                            name: redisService.metadata.name,
                            port: { number: 6379 },
                        },
                    },
                }],
            },
        }],
    },
});

Summary:

Created a Kubernetes namespace to organize resources.
Deployed Redis Enterprise using a Kubernetes Deployment.
Exposed the Redis Enterprise deployment using a Kubernetes Service.
Set up a Kubernetes Ingress to allow external access to the Redis service.

This configuration ensures that Redis Enterprise is accessible externally through a defined ingress rule, enabling seamless integration with other services and applications.

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