Redis Configuration

Overview

Redis is used for:

• Session storage (all user sessions)
• Caching (settings, nodes, search results, security data)
• Pub/Sub (realtime event distribution)

Connection

Configure via the REDIS_URL environment variable:

REDIS_URL="redis://127.0.0.1:6379"

Default: redis://127.0.0.1:6379

Authentication

If your Redis instance requires authentication:

REDIS_URL="redis://:password@127.0.0.1:6379"

TLS

For Redis over TLS:

REDIS_URL="rediss://127.0.0.1:6380"

What Gets Stored

Sessions

All user sessions are stored in Redis with a configurable TTL (typically 24 hours). Session data includes:

• User ID and profile info
• Pending 2FA state
• CSRF tokens

Cache Entries

Cache Invalidation

Cache entries are invalidated on write operations:

• Updating settings clears the settings cache
• Creating/updating/deleting images clears the image cache
• Node changes clear the node cache

Requirements

• Redis 6+ recommended
• No special modules required
• Persistence optional (sessions are recreated on restart)

Production Setup

Dedicated Instance

Run a dedicated Redis instance for the panel. Don't share with other applications.

Persistence

For session durability, enable Redis persistence (AOF or RDB). Without persistence, all sessions are lost on Redis restart and users must re-login.

Memory

Redis memory usage depends on active sessions and cached data. For most deployments, 256MB is sufficient.

Security

• Use TLS if Redis is accessed over a network
• Set a password
• Bind to localhost or a private interface
• Don't expose Redis to the public internet

Troubleshooting

Connection Refused

• Verify Redis is running: redis-cli ping
• Check the REDIS_URL in .env
• Check firewall rules

Session Issues

• If users are logged out unexpectedly, Redis may have restarted
• Clear Redis to reset all sessions: redis-cli FLUSHDB

Memory Issues

• Check Redis memory: redis-cli INFO memory
• Increase Redis memory limit
• Check for session leak (sessions not expiring)