The documentation is quite confusing as it suggests different things. In the start it seemed promtail was the thing, but starting to dig deeper it seems like grafana agent flow are taking over.

My thing is that I want a long retention local instance of loki and other grafana services, but also clone to grafana cloud (free tier) so if the network crashes at least reasonably recent data is in the cloud.

So what approach should I use?

1. Setup promtail or agent on each host with two endpoints? This seems more logical, but will create multiple outward streams
2. Setup promtail or agent on each host to ship to one central promtail/agent, and there send to loki local and cloud? This create less streams, or can have two central receivers as by recommendation not having two targets in one agent.
3. Maybe it exists some kind of sync plugin to replicate the incoming local data directly to the cloud. This would be the best option, but no idea if it exists

Any other ideas or suggestions?