108 lines
3.3 KiB
Markdown
108 lines
3.3 KiB
Markdown
# Substrate Node Template
|
|
|
|
A new Substrate node, ready for hacking. This node includes:
|
|
|
|
* A FRAME-based runtime
|
|
* A template pallet
|
|
* Aura block authoring
|
|
* Grandpa finality gadget
|
|
|
|
## Build
|
|
|
|
Install Rust:
|
|
|
|
```bash
|
|
curl https://sh.rustup.rs -sSf | sh
|
|
```
|
|
|
|
Initialize your Wasm Build environment:
|
|
|
|
```bash
|
|
./scripts/init.sh
|
|
```
|
|
|
|
Build Wasm and native code:
|
|
|
|
```bash
|
|
cargo build --release
|
|
```
|
|
|
|
## Run
|
|
|
|
### Single Node Development Chain
|
|
|
|
Purge any existing developer chain state:
|
|
|
|
```bash
|
|
./target/release/node-template purge-chain --dev
|
|
```
|
|
|
|
Start a development chain with:
|
|
|
|
```bash
|
|
./target/release/node-template --dev
|
|
```
|
|
|
|
Detailed logs may be shown by running the node with the following environment variables set: `RUST_LOG=debug RUST_BACKTRACE=1 cargo run -- --dev`.
|
|
|
|
### Multi-Node Local Testnet
|
|
|
|
If you want to see the multi-node consensus algorithm in action locally, then you can create a local testnet with two validator nodes for Alice and Bob, who are the initial authorities of the genesis chain that have been endowed with testnet units.
|
|
|
|
Optionally, give each node a name and expose them so they are listed on the Polkadot [telemetry site](https://telemetry.polkadot.io/#/Local%20Testnet).
|
|
|
|
You'll need two terminal windows open.
|
|
|
|
We'll start Alice's substrate node first on default TCP port 30333 with her chain database stored locally at `/tmp/alice`. The bootnode ID of her node is `QmRpheLN4JWdAnY7HGJfWFNbfkQCb6tFf4vvA6hgjMZKrR`, which is generated from the `--node-key` value that we specify below:
|
|
|
|
```bash
|
|
cargo run -- \
|
|
--base-path /tmp/alice \
|
|
--chain=local \
|
|
--alice \
|
|
--node-key 0000000000000000000000000000000000000000000000000000000000000001 \
|
|
--telemetry-url ws://telemetry.polkadot.io:1024 \
|
|
--validator
|
|
```
|
|
|
|
In the second terminal, we'll start Bob's substrate node on a different TCP port of 30334, and with his chain database stored locally at `/tmp/bob`. We'll specify a value for the `--bootnodes` option that will connect his node to Alice's bootnode ID on TCP port 30333:
|
|
|
|
```bash
|
|
cargo run -- \
|
|
--base-path /tmp/bob \
|
|
--bootnodes /ip4/127.0.0.1/tcp/30333/p2p/QmRpheLN4JWdAnY7HGJfWFNbfkQCb6tFf4vvA6hgjMZKrR \
|
|
--chain=local \
|
|
--bob \
|
|
--port 30334 \
|
|
--telemetry-url ws://telemetry.polkadot.io:1024 \
|
|
--validator
|
|
```
|
|
|
|
Additional CLI usage options are available and may be shown by running `cargo run -- --help`.
|
|
|
|
## Advanced: Generate Your Own Substrate Node Template
|
|
|
|
A substrate node template is always based on a certain version of Substrate. You can inspect it by
|
|
opening [Cargo.toml](Cargo.toml) and see the template referred to a specific Substrate commit(
|
|
`rev` field), branch, or version.
|
|
|
|
You can generate your own Substrate node-template based on a particular Substrate
|
|
version/commit by running following commands:
|
|
|
|
```bash
|
|
# git clone from the main Substrate repo
|
|
git clone https://github.com/paritytech/substrate.git
|
|
cd substrate
|
|
|
|
# Switch to a particular branch or commit of the Substrate repo your node-template based on
|
|
git checkout <branch/tag/sha1>
|
|
|
|
# Run the helper script to generate a node template.
|
|
# This script compiles Substrate and takes a while to complete. It takes a relative file path
|
|
# from the current dir. to output the compressed node template.
|
|
.maintain/node-template-release.sh ../node-template.tar.gz
|
|
```
|
|
|
|
Noted though you will likely get faster and more thorough support if you stick with the releases
|
|
provided in this repository.
|