Redis® (Redis) on Ubuntu 26.04

Redis®* is an open source (BSD licensed), in-memory data structure store used as a database, cache, and message broker. This AMI from Cloud Infrastructure Services delivers a production-ready Redis deployment on Ubuntu 26.04, pre-configured and optimized for AWS EC2 workloads. Launch a fully functional Redis endpoint in minutes - no manual compilation, dependency management, or OS-level configuration required.

• Launch-ready deployment - Redis is pre-installed and configured with sensible defaults. Connect via redis-cli within minutes of instance launch.
• Pre-configured security defaults - Ships with bind address restricted to localhost, protected-mode enabled, and recommended security group settings to prevent unintended public exposure.
• Full Redis feature access - This AMI gives you unrestricted access to all Redis capabilities including Lua scripting, custom modules, and advanced configuration.
• Trusted by thousands of AWS customers - Cloud Infrastructure Services AMIs are deployed across organizations ranging from startups to enterprises running production workloads on AWS.

• TLS support - Configure TLS encryption for data in transit between clients and the Redis server.
• Network isolation - Deploy within a private subnet in your VPC with no public IP. Use security groups to restrict access to port 6379 from authorized application servers only.
• Authentication - Set a strong password via requirepass in redis.conf. ACL support provides granular user-level access control.
• Persistence encryption - Store RDB snapshots and AOF files on encrypted EBS volumes for data-at-rest protection.
• OS hardening - Ubuntu 26.04 base with automatic security updates enabled.

• E-commerce session caching - Store millions of concurrent user sessions during peak traffic events like flash sales, serving session lookups in under 1ms across your application fleet.
• API response caching - Cache database queries and API responses behind your application gateway to reduce backend load and cut response times for end users.
• Real-time analytics and leaderboards - Use sorted sets, counters, and HyperLogLogs for live rankings, metrics dashboards, and unique visitor counts.
• Message broker and job queues - Power pub/sub messaging, event streams, and background job queues between microservices running on ECS, EKS, or EC2.
• Geospatial applications - Index and query location data for proximity search, delivery routing, and mapping features.

Performance and data structures

• In-memory storage delivering sub-millisecond response times
• Rich data structures: strings, hashes, lists, sets, sorted sets, bitmaps, HyperLogLogs, geospatial indexes, and streams
• Keys with configurable time-to-live and LRU eviction policies

Availability and scale

• Built-in asynchronous replication with fast non-blocking synchronization
• High availability via Redis Sentinel with automatic failover
• Automatic partitioning across nodes with Redis Cluster

Persistence and durability

• Point-in-time RDB snapshots to disk
• Append-only file (AOF) logging for every write operation
• Configurable persistence or disable entirely for pure caching

Programmability

• Lua scripting and transactions
• Pub/Sub messaging
• Client libraries for Java, Python, PHP, C, C++, C#, JavaScript, Node.js, Ruby, Go, and more

• Instance requirements - Minimum t3.small (2 GB RAM). For production caching workloads, m5.large or r5.large recommended. Dataset must fit in available instance memory minus OS overhead.
• Ports - Redis on port 6379 (configurable), SSH on port 22.
• Persistence - Requires EBS volume for RDB/AOF storage. Use gp3 or io2 volumes for write-heavy workloads.
• Networking - Deploy in a private subnet. Attach a security group allowing inbound 6379 only from your application security group.

This AMI is a single-node deployment. For multi-node replication or Redis Cluster, launch additional instances and configure replication in redis.conf.

(*) Redis is a registered trademark of Redis Ltd. Any rights therein are reserved to Redis Ltd. Any use by Cloud Infrastructure Services is for referential purposes only and does not indicate any sponsorship, endorsement or affiliation between Redis and Cloud Infrastructure Services.