We use a custom remote read adapter for reading time series data from our
storage backend. In process of transitioning to different backend, I want
to temporarily redirect selected remote read requests (filter on date) to
the new remote read adapter. Does Prometheus remote read support redirects
as detailed in HTTP specification? I want to avoid adding another hop in
forwarding time series responses via the old adapter.
*current flow:*
<prometheus>
---grpc/http--> <legacy_remote_read_adapter>
-----custom_protocol--->
legacy_backend
*new flow:*
<prometheus>
---grpc/http--> <legacy_remote_read_adapter>
(now <= T) -----custom_protocol--->
legacy_backend
* (now > T) ----http/redirect to
new adapter*
* --->
new_remote_read_adapter ---> new_backend*
*
---> ts directly to prometheus *
In the highlighted section of flow, I want to use redirect so the response
is forwarded directly to prometheus from the new remote read adapter.
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