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yutianwu committed May 7, 2021
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8 changes: 1 addition & 7 deletions Dockerfile
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# Build Geth in a stock Go builder container
FROM golang:1.15-alpine as builder
FROM golang:1.16-alpine as builder

RUN apk add --no-cache make gcc musl-dev linux-headers git bash

# Temporarily pull a custom Go bundle
ADD https://golang.org/dl/go1.15.5.src.tar.gz /tmp/go.tar.gz
RUN (cd /tmp && tar -xf go.tar.gz)
RUN (cd /tmp/go/src && ./make.bash)
ENV PATH="/tmp/go/bin:${PATH}"

ADD . /go-ethereum
RUN cd /go-ethereum && make geth

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179 changes: 6 additions & 173 deletions README.md
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Expand Up @@ -7,9 +7,7 @@ Binance Smart Chain starts its development based on go-ethereum fork. So you may
[![API Reference](
https://camo.githubusercontent.com/915b7be44ada53c290eb157634330494ebe3e30a/68747470733a2f2f676f646f632e6f72672f6769746875622e636f6d2f676f6c616e672f6764646f3f7374617475732e737667
)](https://pkg.go.dev/github.com/ethereum/go-ethereum?tab=doc)
[![Go Report Card](https://goreportcard.com/badge/github.com/ethereum/go-ethereum)](https://goreportcard.com/report/github.com/ethereum/go-ethereum)
[![Travis](https://travis-ci.com/ethereum/go-ethereum.svg?branch=master)](https://travis-ci.com/ethereum/go-ethereum)
[![Discord](https://img.shields.io/badge/discord-join%20chat-blue.svg)](https://discord.gg/nthXNEv)
[![Discord](https://img.shields.io/badge/discord-join%20chat-blue.svg)](https://discord.gg/T3Ka4V4N)

But from that baseline of EVM compatible, Binance Smart Chain introduces a system of 21 validators with Proof of Staked Authority (PoSA) consensus that can support short block time and lower fees. The most bonded validator candidates of staking will become validators and produce blocks. The double-sign detection and other slashing logic guarantee security, stability, and chain finality.

Expand Down Expand Up @@ -83,18 +81,13 @@ directory.

| Command | Description |
| :-----------: | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
<<<<<<< HEAD
| **`geth`** | Main Binance Smart Chain client binary. It is the entry point into the BSC network (main-, test- or private net), capable of running as a full node (default), archive node (retaining all historical state) or a light node (retrieving data live). It has the same and more RPC and other interface as go-ethereum and can be used by other processes as a gateway into the BSC network via JSON RPC endpoints exposed on top of HTTP, WebSocket and/or IPC transports. `geth --help` and the [CLI page](https://geth.ethereum.org/docs/interface/command-line-options) for command line options. |
=======
| **`geth`** | Our main Ethereum CLI client. It is the entry point into the Ethereum network (main-, test- or private net), capable of running as a full node (default), archive node (retaining all historical state) or a light node (retrieving data live). It can be used by other processes as a gateway into the Ethereum network via JSON RPC endpoints exposed on top of HTTP, WebSocket and/or IPC transports. `geth --help` and the [CLI page](https://geth.ethereum.org/docs/interface/command-line-options) for command line options. |
| `clef` | Stand-alone signing tool, which can be used as a backend signer for `geth`. |
| `clef` | Stand-alone signing tool, which can be used as a backend signer for `geth`. |
| `devp2p` | Utilities to interact with nodes on the networking layer, without running a full blockchain. |
>>>>>>> v1.10.3
| `abigen` | Source code generator to convert Ethereum contract definitions into easy to use, compile-time type-safe Go packages. It operates on plain [Ethereum contract ABIs](https://docs.soliditylang.org/en/develop/abi-spec.html) with expanded functionality if the contract bytecode is also available. However, it also accepts Solidity source files, making development much more streamlined. Please see our [Native DApps](https://geth.ethereum.org/docs/dapp/native-bindings) page for details. |
| `bootnode` | Stripped down version of our Ethereum client implementation that only takes part in the network node discovery protocol, but does not run any of the higher level application protocols. It can be used as a lightweight bootstrap node to aid in finding peers in private networks. |
| `evm` | Developer utility version of the EVM (Ethereum Virtual Machine) that is capable of running bytecode snippets within a configurable environment and execution mode. Its purpose is to allow isolated, fine-grained debugging of EVM opcodes (e.g. `evm --code 60ff60ff --debug run`). |
| `rlpdump` | Developer utility tool to convert binary RLP ([Recursive Length Prefix](https://eth.wiki/en/fundamentals/rlp)) dumps (data encoding used by the Ethereum protocol both network as well as consensus wise) to user-friendlier hierarchical representation (e.g. `rlpdump --hex CE0183FFFFFFC4C304050583616263`). |
| `puppeth` | a CLI wizard that aids in creating a new Ethereum network. |

## Running `geth`

Expand All @@ -119,7 +112,7 @@ $ geth console
This command will:
* Start `geth` in fast sync mode (default, can be changed with the `--syncmode` flag),
causing it to download more data in exchange for avoiding processing the entire history
of the Ethereum network, which is very CPU intensive.
of the Binance Smart Chain network, which is very CPU intensive.
* Start up `geth`'s built-in interactive [JavaScript console](https://geth.ethereum.org/docs/interface/javascript-console),
(via the trailing `console` subcommand) through which you can interact using [`web3` methods](https://web3js.readthedocs.io/en/)
(note: the `web3` version bundled within `geth` is very old, and not up to date with official docs),
Expand All @@ -146,28 +139,6 @@ use separate accounts for play-money and real-money. Unless you manually move
accounts, `geth` will by default correctly separate the two networks and will not make any
accounts available between them.*

### Full node on the Rinkeby test network

Go Ethereum also supports connecting to the older proof-of-authority based test network
called [*Rinkeby*](https://www.rinkeby.io) which is operated by members of the community.

```shell
$ geth --rinkeby console
```

### Full node on the Ropsten test network

In addition to Görli and Rinkeby, Geth also supports the ancient Ropsten testnet. The
Ropsten test network is based on the Ethash proof-of-work consensus algorithm. As such,
it has certain extra overhead and is more susceptible to reorganization attacks due to the
network's low difficulty/security.

```shell
$ geth --ropsten console
```

*Note: Older Geth configurations store the Ropsten database in the `testnet` subdirectory.*

### Configuration

As an alternative to passing the numerous flags to the `geth` binary, you can also pass a
Expand All @@ -184,32 +155,10 @@ export your existing configuration:
$ geth --your-favourite-flags dumpconfig
```

*Note: This works only with `geth` v1.6.0 and above.*

#### Docker quick start

One of the quickest ways to get Ethereum up and running on your machine is by using
Docker:

```shell
docker run -d --name ethereum-node -v /Users/alice/ethereum:/root \
-p 8545:8545 -p 30303:30303 \
ethereum/client-go
```

This will start `geth` in fast-sync mode with a DB memory allowance of 1GB just as the
above command does. It will also create a persistent volume in your home directory for
saving your blockchain as well as map the default ports. There is also an `alpine` tag
available for a slim version of the image.

Do not forget `--http.addr 0.0.0.0`, if you want to access RPC from other containers
and/or hosts. By default, `geth` binds to the local interface and RPC endpoints is not
accessible from the outside.

### Programmatically interfacing `geth` nodes

As a developer, sooner rather than later you'll want to start interacting with `geth` and the
Ethereum network via your own programs and not manually through the console. To aid
Binance Smart Chain network via your own programs and not manually through the console. To aid
this, `geth` has built-in support for a JSON-RPC based APIs ([standard APIs](https://eth.wiki/json-rpc/API)
and [`geth` specific APIs](https://geth.ethereum.org/docs/rpc/server)).
These can be exposed via HTTP, WebSockets and IPC (UNIX sockets on UNIX based
Expand Down Expand Up @@ -247,130 +196,14 @@ BSC nodes with exposed APIs! Further, all browser tabs can access locally
running web servers, so malicious web pages could try to subvert locally available
APIs!**

### Operating a private network

Maintaining your own private network is more involved as a lot of configurations taken for
granted in the official networks need to be manually set up.

#### Defining the private genesis state

First, you'll need to create the genesis state of your networks, which all nodes need to be
aware of and agree upon. This consists of a small JSON file (e.g. call it `genesis.json`):

```json
{
"config": {
"chainId": <arbitrary positive integer>,
"homesteadBlock": 0,
"eip150Block": 0,
"eip155Block": 0,
"eip158Block": 0,
"byzantiumBlock": 0,
"constantinopleBlock": 0,
"petersburgBlock": 0,
"istanbulBlock": 0,
"berlinBlock": 0
},
"alloc": {},
"coinbase": "0x0000000000000000000000000000000000000000",
"difficulty": "0x20000",
"extraData": "",
"gasLimit": "0x2fefd8",
"nonce": "0x0000000000000042",
"mixhash": "0x0000000000000000000000000000000000000000000000000000000000000000",
"parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
"timestamp": "0x00"
}
```

The above fields should be fine for most purposes, although we'd recommend changing
the `nonce` to some random value so you prevent unknown remote nodes from being able
to connect to you. If you'd like to pre-fund some accounts for easier testing, create
the accounts and populate the `alloc` field with their addresses.

```json
"alloc": {
"0x0000000000000000000000000000000000000001": {
"balance": "111111111"
},
"0x0000000000000000000000000000000000000002": {
"balance": "222222222"
}
}
```

With the genesis state defined in the above JSON file, you'll need to initialize **every**
`geth` node with it prior to starting it up to ensure all blockchain parameters are correctly
set:

```shell
$ geth init path/to/genesis.json
```

#### Creating the rendezvous point

With all nodes that you want to run initialized to the desired genesis state, you'll need to
start a bootstrap node that others can use to find each other in your network and/or over
the internet. The clean way is to configure and run a dedicated bootnode:

```shell
$ bootnode --genkey=boot.key
$ bootnode --nodekey=boot.key
```

With the bootnode online, it will display an [`enode` URL](https://eth.wiki/en/fundamentals/enode-url-format)
that other nodes can use to connect to it and exchange peer information. Make sure to
replace the displayed IP address information (most probably `[::]`) with your externally
accessible IP to get the actual `enode` URL.

*Note: You could also use a full-fledged `geth` node as a bootnode, but it's the less
recommended way.*

#### Starting up your member nodes

With the bootnode operational and externally reachable (you can try
`telnet <ip> <port>` to ensure it's indeed reachable), start every subsequent `geth`
node pointed to the bootnode for peer discovery via the `--bootnodes` flag. It will
probably also be desirable to keep the data directory of your private network separated, so
do also specify a custom `--datadir` flag.

```shell
$ geth --datadir=path/to/custom/data/folder --bootnodes=<bootnode-enode-url-from-above>
```

*Note: Since your network will be completely cut off from the main and test networks, you'll
also need to configure a miner to process transactions and create new blocks for you.*

#### Running a private miner

Mining on the public Ethereum network is a complex task as it's only feasible using GPUs,
requiring an OpenCL or CUDA enabled `ethminer` instance. For information on such a
setup, please consult the [EtherMining subreddit](https://www.reddit.com/r/EtherMining/)
and the [ethminer](https://github.com/ethereum-mining/ethminer) repository.

In a private network setting, however a single CPU miner instance is more than enough for
practical purposes as it can produce a stable stream of blocks at the correct intervals
without needing heavy resources (consider running on a single thread, no need for multiple
ones either). To start a `geth` instance for mining, run it with all your usual flags, extended
by:

```shell
$ geth <usual-flags> --mine --miner.threads=1 --miner.etherbase=0x0000000000000000000000000000000000000000
```

Which will start mining blocks and transactions on a single CPU thread, crediting all
proceedings to the account specified by `--miner.etherbase`. You can further tune the mining
by changing the default gas limit blocks converge to (`--miner.targetgaslimit`) and the price
transactions are accepted at (`--miner.gasprice`).

## Contribution

Thank you for considering to help out with the source code! We welcome contributions
from anyone on the internet, and are grateful for even the smallest of fixes!

If you'd like to contribute to go-ethereum, please fork, fix, commit and send a pull request
If you'd like to contribute to bsc, please fork, fix, commit and send a pull request
for the maintainers to review and merge into the main code base. If you wish to submit
more complex changes though, please check up with the core devs first on [our gitter channel](https://gitter.im/ethereum/go-ethereum)
more complex changes though, please check up with the core devs first on [our discord channel](https://discord.com/invite/T3Ka4V4N)
to ensure those changes are in line with the general philosophy of the project and/or get
some early feedback which can make both your efforts much lighter as well as our review
and merge procedures quick and simple.
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