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65 lines
1.9 KiB
Markdown
65 lines
1.9 KiB
Markdown
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# Simple Local Testnet
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You can setup a local, two-node testnet in **Only Three CLI Commands™**.
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Follow the [Quick instructions](#tldr) version if you're confident, or see
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[Detailed instructions](#detail) for more.
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## Quick instructions
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Setup a development environment, build the project and navigate to the
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`target/release` directory.
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1. Start the first node: `$ ./beacon_node testnet -f recent 8`
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1. Start a validator client: **TODO**
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1. Start another node `$ ./beacon_node -b 10 testnet -f bootstrap http://localhost:5052`
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_Repeat #3 to add more nodes._
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## Detailed instructions
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First, setup a Lighthouse development environment and navigate to the
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`target/release` directory (this is where the binaries are located).
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## Starting the Beacon Node
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Start a new node (creating a fresh database and configuration in `~/.lighthouse`), using:
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```
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$ ./beacon_node testnet -f recent 8
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```
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> The `-f` flag ignores any existing database or configuration, backing them up
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before re-initializing. `8` is number of validators with deposits in the
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genesis state.
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>
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> See `$ ./beacon_node testnet recent --help` for more configuration options,
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including `minimal`/`mainnet` specification.
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## Starting the Validator Client
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**TODO**
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## Adding another Beacon Node
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You may connect another (non-validating) node to your local network using the
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lighthouse `bootstrap` command.
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In a new terminal terminal, run:
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```
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$ ./beacon_node -b 10 testnet -r bootstrap http://localhost:5052
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```
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> The `-b` (or `--port-bump`) increases all the listening TCP/UDP ports of the
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new node to `10` higher. Your first node's HTTP server was at TCP `5052` but
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this one will be at `5062`.
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>
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> The `-r` flag creates a new data directory in your home with a random string
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appended, to avoid conflicting with any other running node.
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>
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> The HTTP address is the API of the first node. The new node will download
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configuration via HTTP before starting sync via libp2p.
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