Retry with exponential backoff when fetching artifacts #228
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This PR implements retries with exponential backoff when fetching artifacts from source-controller. By default, the controller does 10 attempts within a 3.5 minutes window, the number of max retries can be configure using the
--http-retrycmd arg.This mitigates the alert spam (
i/o timeout err) when source-controller becomes unavailable for a short period of time e.g. after an upgrade.Ref: fluxcd/flux2#661 fluxcd/notification-controller#76