# Maple Infrastructure - Redis Production Configuration
# This file is used by the Redis Docker container

# ==============================================================================
# NETWORK
# ==============================================================================
# Bind to all interfaces (Docker networking handles access control)
bind 0.0.0.0

# Default Redis port
port 6379

# Protected mode disabled (we rely on Docker network isolation)
# Only containers on mapleopentech-prod overlay network can access
protected-mode no

# ==============================================================================
# PERSISTENCE
# ==============================================================================
# RDB Snapshots (background saves)
# Save if at least 1 key changed in 900 seconds (15 min)
save 900 1

# Save if at least 10 keys changed in 300 seconds (5 min)
save 300 10

# Save if at least 10000 keys changed in 60 seconds (1 min)
save 60 10000

# Stop writes if RDB snapshot fails (data safety)
stop-writes-on-bgsave-error yes

# Compress RDB files
rdbcompression yes

# Checksum RDB files
rdbchecksum yes

# RDB filename
dbfilename dump.rdb

# Working directory for RDB and AOF files
dir /data

# ==============================================================================
# APPEND-ONLY FILE (AOF) - Additional Durability
# ==============================================================================
# Enable AOF for better durability
appendonly yes

# AOF filename
appendfilename "appendonly.aof"

# Sync strategy: fsync every second (good balance)
# Options: always, everysec, no
appendfsync everysec

# Don't fsync during rewrite (prevents blocking)
no-appendfsync-on-rewrite no

# Auto-rewrite AOF when it grows 100% larger
auto-aof-rewrite-percentage 100
auto-aof-rewrite-min-size 64mb

# ==============================================================================
# MEMORY MANAGEMENT
# ==============================================================================
# Maximum memory (adjust based on your droplet RAM)
# For 2GB droplet with Redis only: 1.5GB safe limit
# For 2GB droplet with other services: 512MB-1GB
maxmemory 512mb

# Eviction policy when maxmemory reached
# allkeys-lru: Evict least recently used keys (good for cache)
# volatile-lru: Only evict keys with TTL set
# noeviction: Return errors when memory limit reached
maxmemory-policy allkeys-lru

# LRU/LFU algorithm precision (higher = more accurate, more CPU)
maxmemory-samples 5

# ==============================================================================
# SECURITY
# ==============================================================================
# Require password for all operations
# IMPORTANT: This is loaded from Docker secret in production
# requirepass will be set via command line argument

# Disable dangerous commands in production
rename-command FLUSHDB ""
rename-command FLUSHALL ""
rename-command CONFIG ""

# ==============================================================================
# LOGGING
# ==============================================================================
# Log level: debug, verbose, notice, warning
loglevel notice

# Log to stdout (Docker captures logs)
logfile ""

# ==============================================================================
# DATABASES
# ==============================================================================
# Number of databases (default 16)
databases 16

# ==============================================================================
# PERFORMANCE TUNING
# ==============================================================================
# Timeout for idle client connections (0 = disabled)
timeout 300

# TCP keepalive
tcp-keepalive 300

# Number of I/O threads (use for high load)
# 0 = auto-detect, 1 = single-threaded
io-threads 2
io-threads-do-reads yes

# ==============================================================================
# SLOW LOG
# ==============================================================================
# Log queries slower than 10ms
slowlog-log-slower-than 10000

# Keep last 128 slow queries
slowlog-max-len 128

# ==============================================================================
# ADVANCED
# ==============================================================================
# Enable active rehashing
activerehashing yes

# Client output buffer limits
client-output-buffer-limit normal 0 0 0
client-output-buffer-limit replica 256mb 64mb 60
client-output-buffer-limit pubsub 32mb 8mb 60

# Max number of clients
maxclients 10000

# ==============================================================================
# NOTES
# ==============================================================================
# This configuration is optimized for:
# - Production caching workload
# - 2GB RAM droplet
# - Single Redis instance (not clustered)
# - AOF + RDB persistence
# - Docker Swarm networking
#
# Monitoring commands:
# - INFO: Get server stats
# - SLOWLOG GET: View slow queries
# - MEMORY STATS: Memory usage breakdown
# - CLIENT LIST: Connected clients
# ==============================================================================