Add support for the Sepolia network (#3762)

Makefile

@@ -27,6 +27,7 @@ BASE_REST_PORT := 5052
 BASE_METRICS_PORT := 8008
 
 ROPSTEN_WEB3_URL := "--web3-url=wss://ropsten.infura.io/ws/v3/809a18497dd74102b5f37d25aae3c85a"
+SEPOLIA_WEB3_URL := "--web3-url=https://rpc.sepolia.dev --web3-url=https://www.sepoliarpc.space"
 GOERLI_WEB3_URL := "--web3-url=wss://goerli.infura.io/ws/v3/809a18497dd74102b5f37d25aae3c85a"
 GNOSIS_WEB3_URLS := "--web3-url=wss://rpc.gnosischain.com/wss --web3-url=wss://xdai.poanetwork.dev/wss"
 
@@ -445,6 +446,35 @@ ropsten-dev-deposit: | ropsten-build deposit_contract
 clean-ropsten:
 	$(call CLEAN_NETWORK,ropsten)
 
+###
+### Sepolia
+###
+sepolia-build: | nimbus_beacon_node nimbus_signing_node
+
+# https://www.gnu.org/software/make/manual/html_node/Call-Function.html#Call-Function
+sepolia: | sepolia-build
+	$(call CONNECT_TO_NETWORK,sepolia,nimbus_beacon_node,$(SEPOLIA_WEB3_URL))
+
+sepolia-vc: | sepolia-build nimbus_validator_client
+	$(call CONNECT_TO_NETWORK_WITH_VALIDATOR_CLIENT,sepolia,nimbus_beacon_node,$(SEPOLIA_WEB3_URL))
+
+sepolia-lc: | nimbus_light_client
+	$(call CONNECT_TO_NETWORK_WITH_LIGHT_CLIENT,sepolia)
+
+ifneq ($(LOG_LEVEL), TRACE)
+sepolia-dev:
+	+ "$(MAKE)" LOG_LEVEL=TRACE $@
+else
+sepolia-dev: | sepolia-build
+	$(call CONNECT_TO_NETWORK_IN_DEV_MODE,sepolia,nimbus_beacon_node,$(SEPOLIA_WEB3_URL))
+endif
+
+sepolia-dev-deposit: | sepolia-build deposit_contract
+	$(call MAKE_DEPOSIT,sepolia,$(SEPOLIA_WEB3_URL))
+
+clean-sepolia:
+	$(call CLEAN_NETWORK,sepolia)
+
 ###
 ### Gnosis chain binary
 ###

beacon_chain/eth1/eth1_monitor.nim

@@ -1343,6 +1343,7 @@ proc startEth1Syncing(m: Eth1Monitor, delayBeforeStart: Duration) {.async.} =
         of ropsten: "3"
         of rinkeby: "4"
         of goerli:  "5"
+        of sepolia: "11155111"
     if expectedNetwork != providerNetwork:
       fatal "The specified web3 provider serves data for a different network",
              expectedNetwork, providerNetwork

beacon_chain/networking/network_metadata.nim

@@ -40,6 +40,7 @@ type
     ropsten
     rinkeby
     goerli
+    sepolia
 
   Eth2NetworkConfigDefaults* = object
     ## Network specific config defaults
@@ -246,8 +247,9 @@ when not defined(gnosisChainBinary):
       mainnetMetadata* = eth2Network("shared/mainnet", mainnet)
       praterMetadata* = eth2Network("shared/prater", goerli)
       ropstenMetadata = mergeTestnet("ropsten-beacon-chain", ropsten)
+      sepoliaMetadata = mergeTestnet("sepolia", sepolia)
     static:
-      for network in [mainnetMetadata, praterMetadata, ropstenMetadata]:
+      for network in [mainnetMetadata, praterMetadata, ropstenMetadata, sepoliaMetadata]:
         checkForkConsistency(network.cfg)
 
   proc getMetadataForNetwork*(networkName: string): Eth2NetworkMetadata {.raises: [Defect, IOError].} =
@@ -271,6 +273,8 @@ when not defined(gnosisChainBinary):
           praterMetadata
         of "ropsten":
           ropstenMetadata
+        of "sepolia":
+          sepoliaMetadata
         else:
           loadRuntimeMetadata()
       else:

beacon_chain/spec/presets.nim

@@ -175,6 +175,7 @@ when const_preset == "mainnet":
     # * 'mainnet' - there can be only one
     # * 'prater' - testnet
     # * 'ropsten' - testnet
+    # * 'sepolia' - testnet
     # Must match the regex: [a-z0-9\-]
     CONFIG_NAME: "mainnet",
 
@@ -276,6 +277,7 @@ elif const_preset == "minimal":
     # * 'mainnet' - there can be only one
     # * 'prater' - testnet
     # * 'ropsten' - testnet
+    # * 'sepolia' - testnet
     # Must match the regex: [a-z0-9\-]
     CONFIG_NAME: "minimal",
 

docs/e2store.md

@@ -178,7 +178,7 @@ Each era is identified by when it ends. Thus, the genesis era is era `0`, follow
 
 `.era` file names follow a simple convention: `<config-name>-<era-number>-<era-count>-<short-historical-root>.era`:
 
-* `config-name` is the `CONFIG_NAME` field of the runtime configation (`mainnet`, `prater`, `ropsten`, etc)
+* `config-name` is the `CONFIG_NAME` field of the runtime configation (`mainnet`, `prater`, `ropsten`, `sepolia`, etc)
 * `era-number` is the number of the _first_ era stored in the file - for example, the genesis era file has number 0 - as a 5-digit 0-filled decimal integer
 * `short-era-root` is the first 4 bytes of the last historical root in the _last_ state in the era file, lower-case hex-encoded (8 characters), except the genesis era which instead uses the `genesis_validators_root` field from the genesis state.
   * The root is available as `state.historical_roots[era - 1]` except for genesis, which is `state.genesis_validators_root`

docs/the_nimbus_book/src/attestation-performance.md

@@ -32,9 +32,9 @@ The following options are available:
 
 Where:
 
-- The `network` can either be `mainnet`, `prater` or `ropsten`
+- The `network` can either be `mainnet`, `prater`, `ropsten` or `sepolia`
 
-- The default location of the `db`  is either `build/data/shared_mainnet_0/db`, `build/data/shared_prater_0/db` or `build/data/shared_ropsten_0/db`
+- The default location of the `db`  is `build/data/shared_mainnet_0/db` for `mainnet`, `build/data/shared_prater_0/db` for `prater`, etc.
 
 
 Near the bottom, you should see

run-sepolia-beacon-node.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+# Copyright (c) 2022 Status Research & Development GmbH. Licensed under
+# either of:
+# - Apache License, version 2.0
+# - MIT license
+# at your option. This file may not be copied, modified, or distributed except
+# according to those terms.
+
+cd "$(dirname $0)"
+# Allow the binary to receive signals directly.
+exec scripts/run-beacon-node.sh nimbus_beacon_node sepolia $@

vendor/merge-testnets

@@ -1 +1 @@
-Subproject commit 525141dcd7a6ca9a9260a049f24fc7ad39a0768f
+Subproject commit 2f0050ea2487d4d97da64cff256e1a05edcd63b1