Optimizing high availability with CloudFront origin failover

• You can set up CloudFront with origin failover for scenarios that require high availability.

• To get started, you create an origin group with two origins: a primary and a secondary.

• If the primary origin is unavailable, or returns specific HTTP response status codes that indicate a failure, CloudFront automatically switches to the secondary origin.

• To set up origin failover, you must have a distribution with at least two origins.

• You create or update a cache behaviour to use the origin group.