Generate and distribute trust quorum shares during rack setup#1182
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Love to see this! |
smklein
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Jun 9, 2022
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| // TODO-cleanup This is currently optional because we don't do trust quorum | ||
| // shares for single-node deployments (i.e., most dev/test environments), | ||
| // but eventually this should be required. |
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Thanks for including this - I think it's important we make progress on multi-node, but not breaking single-node seems critical too
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| // Create a rack secret, unless we're in the single-sled case. | ||
| let mut rack_secret_shares = if bootstrap_addrs.len() > 1 { | ||
| let total_shares = bootstrap_addrs.len(); | ||
| if config.rack_secret_threshold > 1 { | ||
| let secret = RackSecret::new(); | ||
| let (shares, verifier) = secret | ||
| .split(config.rack_secret_threshold, total_shares) | ||
| .map_err(SetupServiceError::SplitRackSecret)?; | ||
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| // Sanity check that `split` returned the expected number of | ||
| // shares (one per bootstrap agent) | ||
| assert_eq!(shares.len(), total_shares); | ||
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| Some(shares.into_iter().map(move |share| ShareDistribution { | ||
| threshold: config.rack_secret_threshold, | ||
| total_shares, | ||
| verifier: verifier.clone(), | ||
| share, | ||
| })) | ||
| } else { | ||
| warn!( | ||
| self.log, | ||
| concat!( | ||
| "Skipping rack secret creation due to config", | ||
| " (despite discovery of {} bootstrap agents)" | ||
| ), | ||
| total_shares, | ||
| ); | ||
| None | ||
| } | ||
| } else { | ||
| None | ||
| }; |
Collaborator
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WDYT about splitting this into a separate function so we can add a test?
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Seems perfectly reasonable; will do.
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The primary change in this PR is that trust quorum shares are now created by RSS and sent to sleds as part of the
SledAgentRequests distributed during rack setup instead of being generated ahead of time and installed bything-flinger. Ancillary changes:Closes #513 (complete) and #517 (no longer relevant).