Redis Infrastructure

Redis serves as the distributed caching layer and session store for the Tarasol platform. Every service connects to Redis for caching frequently accessed data.

Use Cases

Use Case	Service	Pattern
Session Storage	Gateway, Identity	Key-Value
Token Cache	Identity	Key-Value with TTL
User Profiles	Profile Service	Key-Value with TTL
Preferences	Profile Service	Key-Value with TTL
Tenant Config	All Services	Key-Value with TTL
Token Blacklist	Identity	Set with TTL

TTL Strategy

Data Type	TTL	Rationale
User Profiles	5 min	Moderate change frequency
User Preferences	10 min	Low change frequency
Avatar URLs	1 hour	Rarely changes
Session Data	Variable	Based on token expiry
Tenant Config	5 min	Moderate change frequency
Token Blacklist	Token lifetime	Must persist until token expires

Setup

# Docker setup
docker run -d --name redis \
  -p 6379:6379 \
  redis:7-alpine

Configuration

Name	Type	Default	Description
REDIS_HOST	string	localhost	Redis server hostname
REDIS_PORT	number	6379	Redis server port
REDIS_PASSWORD	string	-	Redis password (if authentication enabled)
REDIS_DB	number	0	Redis database number

✓Tip

In production, use Redis Sentinel or Redis Cluster for high availability. Configure REDIS_SENTINEL_HOSTS for sentinel mode.