Feature Request: Support Hetzner S3 for backups

[devsecur]

As Hetzner started s3 and there are also other providers for s3 besides AWS, I would like not to use AWS only, but also Hetzner. Is there a way to use non-AWS s3 providers?

[pellepelster]

I had the same thought when I heard that Hetzner released the object storage service, the funny thing is it already works. The underlying backup solution (pgbackrest) supports any S3 compatible service I applied for the beta and tested it. I noticed though that the docs are lacking a little bit so here are some updates:

• the postgres docker container that holds PostgreSQL as well as pgbackrest now has some updated docs on how to use it with other S3 providers: https://pellepelster.github.io/solidblocks/rds/index.html#s3-backup
• the Hetzner RDS Terraform module also got some documentation updates, an integration test as well as an example snippet https://pellepelster.github.io/solidblocks/hetzner/rds/usage/index.html#hetzner-object-storage
• until the next Solidblocks version is released, the example can be viewed here https://github.com/pellepelster/solidblocks/tree/main/solidblocks-hetzner/snippets/hetzner-postgres-rds-hetzner-s3-backup

currently only local and S3 are supported at the same time, but that is an synthetic limitation imposed by Solidblocks, I will try to slip something into the next release