139 lines
4.8 KiB
Markdown
139 lines
4.8 KiB
Markdown
# Fluffy: The Nimbus Portal Network Client
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[](https://github.com/status-im/nimbus-eth1/actions/workflows/fluffy.yml)
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[](https://opensource.org/licenses/Apache-2.0)
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[](https://opensource.org/licenses/MIT)
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[](https://discord.gg/XRxWahP)
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[](https://join.status.im/nimbus-general)
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## Introduction
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This folder holds the development of the Nimbus client implementation supporting
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the Portal Network: fluffy. The Portal Network is a project still heavily in
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research phase and fully in flux. This client is thus still highly experimental.
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Current status of specifications can be found in the
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[portal-network-specs repository](https://github.com/ethereum/portal-network-specs/blob/master/portal-network.md).
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## Development Updates
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To keep up to date with changes and development progress, follow the
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[Nimbus blog](https://our.status.im/tag/nimbus/).
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Monthly development updates are shared
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[here](https://hackmd.io/jRpxY4WBQJ-hnsKaPDYqTw).
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## How to Build & Run
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### Prerequisites
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- GNU Make, Bash and the usual POSIX utilities. Git 2.9.4 or newer.
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### Build fluffy client
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```bash
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git clone git@github.com:status-im/nimbus-eth1.git
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cd nimbus-eth1
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make fluffy
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# See available command line options
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./build/fluffy --help
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# Example command: Run the client and connect to a bootstrap node.
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./build/fluffy --bootstrap-node:enr:<base64 encoding of ENR>
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```
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### Update and rebuild fluffy client
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```bash
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# From the nimbus-eth1 repository
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git pull
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# To bring the git submodules up to date
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make update
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make fluffy
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```
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### Run fluffy test suite
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```bash
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# From the nimbus-eth1 repository
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make fluffy-test
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```
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### Run fluffy on (Nimbus) public testnet0
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There is a fleet of fluffy nodes deployed, and to easily join these, the
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`--network:testnet0` option can be used.
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```bash
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./build/fluffy --network:testnet0 --table-ip-limit:1024 --bucket-ip-limit:24 --log-level:info --rpc
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```
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> **_Note:_** This `--network` option will merely select a static set of
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specific bootstrap nodes belonging to a "testnet". Currently `testnet0` is the
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only option, which results in connecting to designated fluffy bootstrap nodes.
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It should be noted that there is no real way to distinguish a "specific" Portal
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network, and as long as the same Portal protocols are supported, nodes can
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simply connect to it and no real separation can be made.
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The `table-ip-limit` and `bucket-ip-limit` options are needed to allow more
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nodes with the same IPs in the routing tables. This is needed because the fleet
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of fluffy nodes runs on only 2 machines / network interfaces.
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The network is currently storing only the first 2500 mainnet blocks. This can be
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tested by using the JSON-RPC call `eth_getBlockByHash`:
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```
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# Get the hash of a block from your favorite block explorer, e.g.:
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# 0x8dda3a641653c0454569c3b5be529f58b14d2a5b5d87956664c746ce1e367c21
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# Run command to get this block:
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curl -s -X POST -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":"1","method":"eth_getBlockByHash","params":["0x8dda3a641653c0454569c3b5be529f58b14d2a5b5d87956664c746ce1e367c21", false]}' http://localhost:8545 | jq
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```
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### Run fluffy local testnet script
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```bash
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./fluffy/scripts/launch_local_testnet.sh
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```
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Find more details on the usage and workings of the local testnet script
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[here](./docs/local_testnet.md).
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### Windows support
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Follow the steps outlined [here](../README.md#windows) to build fluffy on Windows.
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## For Developers
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When working on this repository, you can run the `env.sh` script to run a
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command with the right environment variables set. This means the vendored
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Nim and Nim modules will be used, just as when you use `make`.
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E.g.:
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```bash
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# start a new interactive shell with the right env vars set
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./env.sh bash
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```
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More [development tips](../README.md#devel-tips)
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can be found on the general nimbus-eth1 readme.
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The code follows the
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[Status Nim Style Guide](https://status-im.github.io/nim-style-guide/).
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Detailed document showing commands to
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[test client protocol interoperability](./docs/protocol_interop.md).
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## License
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Licensed and distributed under either of
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* MIT license: [LICENSE-MIT](../LICENSE-MIT) or http://opensource.org/licenses/MIT
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or
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* Apache License, Version 2.0, ([LICENSE-APACHEv2](../LICENSE-APACHEv2) or http://www.apache.org/licenses/LICENSE-2.0)
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at your option. These files may not be copied, modified, or distributed except according to those terms.
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