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Lobsters·Aug 19·5 min read
Fargate Is Not Firecracker (2024)
TL;DR
AWS Fargate is often mistakenly believed to utilize Firecracker for container virtualization, but it does not. This misconception is perpetuated by marketing and documentation that imply a connection.
✦ Why It Matters
Verify the technologies your cloud services use to avoid misconceptions that could impact your architecture decisions.
Key Takeaways
- Understand that Fargate does not use Firecracker for virtualization.
- Recognize that Fargate does not guarantee hardware isolation between containers.
- Be aware that operational burdens shift rather than disappear with Fargate.
- Evaluate whether Fargate truly meets your container management needs.
How It Works
Fargate operates on standard EC2 instances, which provide basic virtualization without the advanced isolation features of Firecracker. This means that while Fargate simplifies deployment, it does not fundamentally change the underlying architecture of container management.
⚠ The Catch
Fargate does not eliminate the 'noisy neighbor' problem, meaning performance can still be affected by other containers on the same EC2 instance.