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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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2
validator_client/src/http_api/mod.rs
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@@ -409,6 +409,7 @@ pub fn serve<T: 'static + SlotClock + Clone, E: EthSpec>(
drop(validator_dir);
let voting_password = body.password.clone();
let graffiti = body.graffiti.clone();
let suggested_fee_recipient = body.suggested_fee_recipient;
let validator_def = {
if let Some(runtime) = runtime.upgrade() {
@@ -418,6 +419,7 @@ pub fn serve<T: 'static + SlotClock + Clone, E: EthSpec>(
voting_password,
body.enable,
graffiti,
suggested_fee_recipient,
))
.map_err(|e| {
warp_utils::reject::custom_server_error(format!(