What is Valkey and why fork Redis?

Valkey is an open-source Redis-compatible fork from 7.2.4, under Linux Foundation. Forked over BSD-3 license changes; full compatibility, backed by AWS/Google.

How much does Valkey on ECS Fargate cost vs ElastiCache?

~$30/month single AZ (512 CPU/1GB), vs $175 ElastiCache large. 70%+ savings; scales linearly.

Does Valkey work with my Redis clients on ECS?

Yes — ioredis, node-redis, BullMQ, Sidekiq, Celery. Zero code changes; same protocol.

⚙️ DevOps & Platform Eng

I Ditched ElastiCache for Valkey on ECS — Bill Slashed 70%, No Code Changes

ElastiCache? Solid, but that price tag stings. I swapped it for Valkey on ECS Fargate — same Redis magic, 70% cheaper, zero app tweaks.

theAIcatchup Apr 08, 2026 3 min read

Architecture diagram of Valkey on AWS ECS Fargate with EFS persistence and VPC setup

⚡ Key Takeaways

Valkey on ECS Fargate with EFS delivers 70% cost savings over ElastiCache without app changes. 𝕏
Use EFS Access Points to avoid Fargate init failures; configure RDB+AOF for durability. 𝕏
Open-source shift pressures AWS pricing — expect ElastiCache tweaks soon. 𝕏

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theAIcatchup

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#AWS ECS Fargate #AWS cost optimization #ECS Fargate #ElastiCache alternative #Redis fork #Valkey

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Originally reported by dev.to

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