Nim implementation of the Ethereum Beacon Chain https://nimbus.guide
Go to file
Etan Kissling 9248ce02e2
Merge branch 'stable' into feat/eip-7495
2024-08-30 13:14:00 +02:00
.github stop testing broken upstream version-2-0 (#6499) 2024-08-20 14:33:54 +02:00
.vscode vscode: fix tasks 2019-11-25 13:51:47 +01:00
beacon_chain version v24.8.0 2024-08-29 14:29:58 +00:00
benchmarks ensure that rarely ran files are compiled on PR (#6379) 2024-06-23 23:35:56 +00:00
ci ci: bump status-jenkins-lib version, don't use a branch (#6446) 2024-07-25 11:07:02 +02:00
docker update Docker base images to include `git-lfs` (#5430) 2023-09-15 10:45:49 +00:00
docs automated consensus spec URL updating to v1.5.0-alpha.5 (#6504) 2024-08-21 14:25:19 +02:00
grafana vmon: Missed block metric (#5913) 2024-02-20 06:40:18 +02:00
installer add packages to Nix flake config, move to repo root 2024-05-06 16:57:23 +02:00
media Gnosis const preset 2023-01-13 04:28:29 +02:00
ncli refactor engine API conversions out of EL manager (#6507) 2024-08-22 16:12:03 +02:00
nfuzz replace validator Bloom filter with partial bucket sort (#6469) 2024-08-02 07:30:22 +02:00
nix ci: bump status-jenkins-lib version, don't use a branch (#6446) 2024-07-25 11:07:02 +02:00
research use EF consensus-specs v1.5.0-alpha.3 test vectors (#6362) 2024-06-16 00:15:27 +02:00
scripts bump geth to `v1.14.7` (#6423) 2024-07-15 02:26:14 +00:00
tests Merge branch 'stable' into feat/eip-7495 2024-08-30 13:14:00 +02:00
tools handle exceptions in `generate_makefile` tool (#5985) 2024-03-01 16:15:23 +01:00
vendor Merge branch 'stable' into feat/eip-7495 2024-08-30 13:14:00 +02:00
wasm rm state_sim WASM wrapper/demo (#5421) 2023-09-12 15:03:18 +00:00
.dockerignore kurtosis network testing script (#6489) 2024-08-22 08:16:54 +00:00
.editorconfig Support for obtaining deposit snapshots during trustedNodeSync (#4303) 2022-12-07 12:24:51 +02:00
.envrc Flake-based build environment for Nix users (#3534) 2022-10-15 03:46:30 +02:00
.gitignore add packages to Nix flake config, move to repo root 2024-05-06 16:57:23 +02:00
.gitmodules Merge branch 'dev/etan/bd-serialization' into feat/eip-7495 2024-06-13 13:41:04 +02:00
.nvmrc Local sim now includes a prometheus server, a Ganache instance and a simulation dashboard server (in Tmux mode) 2020-06-22 17:30:04 +03:00
AllTests-mainnet.md Merge branch 'stable' into feat/eip-7495 2024-08-30 13:14:00 +02:00
CHANGELOG.md version v24.8.0 2024-08-29 14:29:58 +00:00
ConsensusSpecPreset-mainnet.md use EF consensus-specs v1.5.0-alpha.4 test vectors (#6482) 2024-08-09 15:02:04 +02:00
ConsensusSpecPreset-minimal.md use EF consensus-specs v1.5.0-alpha.4 test vectors (#6482) 2024-08-09 15:02:04 +02:00
Dockerfile kurtosis network testing script (#6489) 2024-08-22 08:16:54 +00:00
LICENSE-APACHEv2 initial commit 2018-07-20 15:46:03 +02:00
LICENSE-MIT initial commit 2018-07-20 15:46:03 +02:00
Makefile add Grandine to known libp2p agents 2024-06-14 04:25:42 +00:00
README.md update links to public API endpoints in readme 2024-06-18 09:03:58 +02:00
beacon_chain.nimble add missing `std/` prefix to more imports (#5696) 2024-01-06 07:18:28 +01:00
config.nims Enable RISC-V (rv64gc) compilation (#6439) 2024-07-23 02:03:53 +00:00
env.sh support special characters in network metadata paths (#6141) 2024-03-26 22:47:42 +01:00
flake.lock add packages to Nix flake config, move to repo root 2024-05-06 16:57:23 +02:00
flake.nix add packages to Nix flake config, move to repo root 2024-05-06 16:57:23 +02:00
funding.json version v24.8.0 2024-08-29 14:29:58 +00:00
kurtosis-network-params.yml kurtosis network testing script (#6489) 2024-08-22 08:16:54 +00:00
nimble.lock Add Nimble lock file (#3560) 2022-03-30 22:00:03 +00:00
run-holesky-beacon-node.sh update copyright year (#6404) 2024-07-03 21:49:23 +00:00
run-kurtosis-check.sh kurtosis network testing script (#6489) 2024-08-22 08:16:54 +00:00
run-mainnet-beacon-node.sh update copyright year (#6404) 2024-07-03 21:49:23 +00:00
run-sepolia-beacon-node.sh update copyright year (#6404) 2024-07-03 21:49:23 +00:00

README.md

Nimbus Eth2 (Beacon Chain)

Github Actions CI License: Apache License: MIT

Discord: Nimbus Status: #nimbus-general gitpoap badge

Nimbus-eth2 is an extremely efficient consensus layer (eth2) client implementation. While it's optimised for embedded systems and resource-restricted devices -- including Raspberry Pis, its low resource usage also makes it an excellent choice for any server or desktop (where it simply takes up fewer resources).

Documentation

You can find the information you need to run a beacon node and operate as a validator in The Book.

The Quickstart in particular will help you quickly connect to either mainnet or the Prater testnet.

Quickly test your tooling against Nimbus

The Nimbus REST api is now available from:

Note that right now these are very much unstable testing instances. They may be unresponsive at times - so please do not rely on them for validating. We may also disable them at any time.

Migrate from another client

This guide will take you through the basics of how to migrate to Nimbus from another client. See here for advanced options.

You can check where the beacon chain fits in the Ethereum ecosystem in our Two-Point-Oh series: https://our.status.im/tag/two-point-oh/

Donations

If you'd like to contribute to Nimbus development, our donation address is 0x70E47C843E0F6ab0991A3189c28F2957eb6d3842

Branch guide

  • stable - latest stable release - this branch is recommended for most users
  • testing - pre-release branch with features and bugfixes slated for the next stable release - this branch is suitable for use on testnets and for adventurous users that want to live on the edge.
  • unstable - main development branch against which PR's are merged - if you want to contribute to Nimbus, start here.

Developer resources

To get started with developing Nimbus itself, see the developer handbook.

Tooling and utilities

We provide several tools to interact with ETH2 and the data in the beacon chain:

  • ncli - command line tool with pretty printers, SSZ decoders, state transition helpers to interact with Eth2 data structures and functions
  • ncli_db - command line tool to perform surgery on the Nimbus sqlite database
  • multinet - a set of scripts to build and run several Eth2 clients locally

For researchers

Block simulation

The block simulator can quickly run the Beacon chain state transition function in isolation. The simulation runs without networking and without slot time delays.

# build and run the block simulator, then display its help ("-d:release" speeds it
# up substantially, allowing the simulation of longer runs in reasonable time)
make NIMFLAGS="-d:release" block_sim
build/block_sim --help

Local network simulation

The local network simulation will create a full peer-to-peer network of beacon nodes and validators on a single machine, and run the beacon chain in real time. Parameters such as shard, validator counts, and data folders can be set in as environment variables before launching the simulation.

# Clear data files from your last run and start the simulation with a new genesis block:
make VALIDATORS=192 NUM_NODES=6 USER_NODES=1 local-testnet-minimal

# In another terminal, get a shell with the right environment variables set:
./env.sh bash

# In the above example, the network is prepared for 7 beacon nodes but one of
# them is not started by default (`USER_NODES`) - this is useful to test
# catching up to the consensus. The following command will start the missing node.
./tests/simulation/run_node.sh 0 # (or the index (0-based) of the missing node)

# Running a separate node allows you to test sync as well as see what the action
# looks like from a single nodes' perspective.

By default, validators will be split in half between beacon node and validator client processes (50/50), communicating through the common validator API (for example with 192 validators and 6 nodes you will roughly end up with 6 beacon node and 6 validator client processes, where each of them will handle 16 validators), but if you don't want to use external validator clients and instead want to have all the validators handled by the beacon nodes you may use USE_VC=0 as an additional argument to make local-testnet-minimal.

Alternatively, fire up our experimental Vagrant instance with Nim pre-installed and give us your feedback about the process!

Visualising simulation metrics

The generic instructions from the Nimbus repo apply here as well.

Specific steps:

# This will generate the Prometheus config on the fly, based on the number of nodes:
make REMOTE_VALIDATORS_COUNT=192 NUM_NODES=6 USER_NODES=0 local-testnet-minimal

# In another terminal tab, after the sim started:
cd tests/simulation/prometheus
prometheus

The dashboard you need to import in Grafana is grafana/beacon_nodes_Grafana_dashboard.json.

monitoring dashboard

CI setup

Local testnets run for 4 epochs each, to test finalization. That happens only on Jenkins Linux hosts, and their logs are available for download as artifacts, from the job's page. Don't expect these artifacts to be kept more than a day after the corresponding branch is deleted.

Jenkins artifacts

License

Licensed and distributed under either of

or

at your option. These files may not be copied, modified, or distributed except according to those terms.