Hi,
I have metrics in prometheus server behind a gateway. Want to mirror this data to another prometheus server that doesn't hide behind any gateway. I cannot stop the source server (the one behind gateway) and the source is configured to retain data for 2 weeks. I tried the following approaches to pull over data
1. Set up scraping the source with a tunnel - The issue is timestamps are not retained.
2. Federation - Again wasn't able to retain timestamps.
3. Tried remote read, but no privileges to configure the source prometheus instance (v 1.8)
4. I looked at Http API, but didn't understand how I can easily push the output of the query API to the new prometheus server.
What is the best approach to retain timestamps and pull the data out to the new prometheus server?
thanks,
Imran