Redis Cache Setup

Overview

Redis serves as a critical component for:

• Session management
• Real-time features
• Caching layer
• Performance optimization

Deployment Options

Managed Service (Recommended)

Cloud Provider Options

Google Cloud Memorystore

1. Enable and Configure
   • 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

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

Digital Ocean Redis

1. Access Digital Ocean Console
2. Create Database > Redis
3. Configure:
   • Choose smallest plan
   • Select datacenter
   • Enable eviction policy

tip

Managed services provide:

• Automatic backups
• High availability
• Security patches
• Performance monitoring

Helm Chart

Bitnami Redis Chart

1. Add repository:

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

2. 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

3. Wait for deployment:

kubectl -n redis get pods -w

caution

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

Example Helm Values

# values.yaml
redis:
  # -- The redis host you collected in the prerequisites
  host: ''
  # -- The redis port you collected in the prerequisites
  port: 6379
  # -- The redis password you collected in the prerequisites
  password: ''
  # -- In shared redis servers, this prefix will separate out all queues
  prefix: 'sm'
  # -- Set to true if you want to use the TLS mode
  tls: false

tip

When using Google Memorystore:

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

Validation

Test your Redis connection:

Google Memorystore

# 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

Standard Redis

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

# Expected response
PONG

Troubleshooting

Common issues and solutions:

1. Connection Failures

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

2. Performance Issues

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

Next Steps

1. ✅ Set up Redis instance
2. ✅ Configure security settings
3. ➡️ Proceed to S3 Compatible Storage Setup

Need Help?

Contact [email protected] if you encounter any issues.