Redis in Production: Configuration and Best Practices

Redis Powers Laravel

Redis handles caching, sessions, queues, and real-time features in Laravel applications. Proper production configuration ensures reliability and performance.

Memory Configuration

# /etc/redis/redis.conf

# Set max memory (leave room for OS)
maxmemory 2gb

# Eviction policy
maxmemory-policy allkeys-lru

# Persistence
appendonly yes
appendfsync everysec

Laravel Redis Configuration

// config/database.php
'redis' => [
    'client' => env('REDIS_CLIENT', 'phpredis'),

    'default' => [
        'host' => env('REDIS_HOST', '127.0.0.1'),
        'password' => env('REDIS_PASSWORD'),
        'port' => env('REDIS_PORT', 6379),
        'database' => 0,
    ],

    'cache' => [
        'host' => env('REDIS_HOST', '127.0.0.1'),
        'password' => env('REDIS_PASSWORD'),
        'port' => env('REDIS_PORT', 6379),
        'database' => 1,
    ],

    'queue' => [
        'host' => env('REDIS_HOST', '127.0.0.1'),
        'password' => env('REDIS_PASSWORD'),
        'port' => env('REDIS_PORT', 6379),
        'database' => 2,
    ],
],

Security

# redis.conf
# Bind to localhost only
bind 127.0.0.1

# Require password
requirepass your_strong_password_here

# Disable dangerous commands
rename-command FLUSHALL ""
rename-command FLUSHDB ""
rename-command DEBUG ""

Monitoring

# Check memory usage
redis-cli INFO memory

# Monitor commands in real-time
redis-cli MONITOR

# Slow log
redis-cli SLOWLOG GET 10

High Availability

# Redis Sentinel for automatic failover
sentinel monitor mymaster 127.0.0.1 6379 2
sentinel down-after-milliseconds mymaster 5000
sentinel failover-timeout mymaster 60000

Conclusion

Redis in production requires proper memory management, security configuration, monitoring, and ideally high availability setup. Configure thoughtfully and monitor continuously.