Redis cache

Overview

Purpose

Session management
Real-time features
Caching layer
Performance optimization

Key Features

Fast in-memory storage
Data persistence
High availability
Monitoring capabilities

Deployment options

Cloud Provider Options

Google Cloud Memorystore

Go to Google Cloud Console
Enable Memorystore for Redis API
Create new Redis instance:
- Choose Basic tier for standard workloads
- Select region (same as your GKE cluster)
- Set memory capacity (minimum 1GB)
- Enable authentication (recommended)
Configure VPC network and authorized networks

Redis Cloud

Create account at Redis Cloud
Create new subscription:
- Fixed plan (minimum 1GB)
- Choose region
- Enable password protection
Create database with default settings

Digital Ocean Redis

Access Digital Ocean Console
Create Database > Redis
Configure:
- Choose smallest plan
- Select datacenter
- Enable eviction policy

Benefits

Automatic backups
High availability
Security patches
Performance monitoring

Bitnami Redis Chart

Add repository

helm repo add bitnami https://charts.bitnami.com/bitnami
helm repo update

Install Redis

helm upgrade --install redis oci://registry-1.docker.io/bitnamicharts/redis \
  --namespace redis \
  --version 18.19.2 \
  --create-namespace \
  --set architecture=standalone \
  --set global.redis.password=your-secure-password

Wait for deployment

kubectl -n redis get pods -w

For Production Use

Configure proper resource limits
Set up persistence
Consider high availability setup

Requirements

Minimum Specifications

Redis 6.0 or higher
1GB memory
Network access from platform
Password protection enabled

Recommended Features

Persistence enabled
Automatic backups
Monitoring setup
Eviction policies configured

Information collection

Required values for platform installation

Redis hostname/endpoint
Port number (default: 6379)
Password (if authentication enabled)
TLS enabled/disabled

redis:
  host: "" # Redis host collected in prerequisites
  port: 6379 # Redis port collected in prerequisites
  password: "" # Redis password collected in prerequisites
  prefix: "sm" # In shared redis servers, this separates queues
  tls: false # Set to true to use TLS mode

When using Google Memorystore:

Enable only one Redis solution (redis.enabled or redis.memorystore.enabled)
Ensure your GKE cluster has access to the Memorystore instance
Configure the same region as your GKE cluster

Validation

# Get the Memorystore instance connection details
REDIS_HOST=$(gcloud redis instances describe [INSTANCE_ID] \
    --region=[REGION] --format='get(host)')
REDIS_PORT=$(gcloud redis instances describe [INSTANCE_ID] \
    --region=[REGION] --format='get(port)')

# Test connection using redis-cli
redis-cli -h $REDIS_HOST -p $REDIS_PORT ping

# Using redis-cli
redis-cli -h your-redis-host -p 6379 -a your-password ping

# Expected response
PONG

Troubleshooting

Connection Failures

Verify credentials
Check network/firewall rules
Confirm TLS settings
Validate endpoint format
For Memorystore: verify VPC peering

Performance Issues

Monitor memory usage
Check eviction policies
Review connection limits
Verify resource allocation
For Memorystore: check instance tier

Need help? Contact [email protected] if you encounter any issues.

Redis cache

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