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Allow per validator fee recipient via flag or file in validator client (similar to graffiti / graffiti-file) (#2924)

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## Issue Addressed

#2883 

## Proposed Changes

* Added `suggested-fee-recipient` & `suggested-fee-recipient-file` flags to validator client (similar to graffiti / graffiti-file implementation).
* Added proposer preparation service to VC, which sends the fee-recipient of all known validators to the BN via [/eth/v1/validator/prepare_beacon_proposer](https://github.com/ethereum/beacon-APIs/pull/178) api once per slot
* Added [/eth/v1/validator/prepare_beacon_proposer](https://github.com/ethereum/beacon-APIs/pull/178) api endpoint and preparation data caching
* Added cleanup routine to remove cached proposer preparations when not updated for 2 epochs

## Additional Info

Changed the Implementation following the discussion in #2883.



Co-authored-by: pk910 <philipp@pk910.de>
Co-authored-by: Paul Hauner <paul@paulhauner.com>
Co-authored-by: Philipp K <philipp@pk910.de>
This commit is contained in:
Philipp K
2022-02-08 19:52:20 +00:00
parent d172c0b9fc
commit 5388183884
33 changed files with 1060 additions and 40 deletions
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54
beacon_node/http_api/src/lib.rs
View File

@@ -45,9 +45,9 @@ use tokio::sync::mpsc::UnboundedSender;
use tokio_stream::{wrappers::BroadcastStream, StreamExt};
use types::{
Attestation, AttesterSlashing, BeaconStateError, CommitteeCache, ConfigAndPreset, Epoch,
EthSpec, ForkName, ProposerSlashing, RelativeEpoch, SignedAggregateAndProof, SignedBeaconBlock,
SignedContributionAndProof, SignedVoluntaryExit, Slot, SyncCommitteeMessage,
SyncContributionData,
EthSpec, ForkName, ProposerPreparationData, ProposerSlashing, RelativeEpoch,
SignedAggregateAndProof, SignedBeaconBlock, SignedContributionAndProof, SignedVoluntaryExit,
Slot, SyncCommitteeMessage, SyncContributionData,
};
use version::{
add_consensus_version_header, fork_versioned_response, inconsistent_fork_rejection,
@@ -2186,6 +2186,53 @@ pub fn serve<T: BeaconChainTypes>(
},
);
// POST validator/prepare_beacon_proposer
let post_validator_prepare_beacon_proposer = eth1_v1
.and(warp::path("validator"))
.and(warp::path("prepare_beacon_proposer"))
.and(warp::path::end())
.and(not_while_syncing_filter.clone())
.and(chain_filter.clone())
.and(warp::addr::remote())
.and(log_filter.clone())
.and(warp::body::json())
.and_then(
|chain: Arc<BeaconChain<T>>,
client_addr: Option<SocketAddr>,
log: Logger,
preparation_data: Vec<ProposerPreparationData>| {
blocking_json_task(move || {
let execution_layer = chain
.execution_layer
.as_ref()
.ok_or(BeaconChainError::ExecutionLayerMissing)
.map_err(warp_utils::reject::beacon_chain_error)?;
let current_epoch = chain
.epoch()
.map_err(warp_utils::reject::beacon_chain_error)?;
debug!(
log,
"Received proposer preparation data";
"count" => preparation_data.len(),
"client" => client_addr
.map(|a| a.to_string())
.unwrap_or_else(|| "unknown".to_string()),
);
execution_layer
.update_proposer_preparation_blocking(current_epoch, &preparation_data)
.map_err(|_e| {
warp_utils::reject::custom_bad_request(
"error processing proposer preparations".to_string(),
)
})?;
Ok(())
})
},
);
// POST validator/sync_committee_subscriptions
let post_validator_sync_committee_subscriptions = eth1_v1
.and(warp::path("validator"))
@@ -2710,6 +2757,7 @@ pub fn serve<T: BeaconChainTypes>(
.or(post_validator_contribution_and_proofs.boxed())
.or(post_validator_beacon_committee_subscriptions.boxed())
.or(post_validator_sync_committee_subscriptions.boxed())
.or(post_validator_prepare_beacon_proposer.boxed())
.or(post_lighthouse_liveness.boxed())
.or(post_lighthouse_database_reconstruct.boxed())
.or(post_lighthouse_database_historical_blocks.boxed()),