I faced a problem that I need to mutually replicate S3 buckets in three regions us-west-2, us-east-1, and eu-west-2. I saw in the Pulumi doc, it has a bi-directional replication example. I am wondering whether I need to create 6 replication rules like
US West 2 -> US East 1
US East 1 -> US West 2
US West 2 -> EU West 2
EU West 2 -> US West 2
US East 1 -> EU West 2
EU West 2 -> US East 1
Appreciate it if anyone could help.
Disclaimer: I haven't been able to find the information I'm about to share in the docs or articles.
From my experience, S3 replication is not transitive.
If you have set up these replications:
Adding an object to C will replicate it to A but will not replicate it to B.
For that to happen, you need to also set up bi directional replication between B and C.
Your final replication strategy should be: