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Add canvas-kusama runtime (#980)
* Added kanvas runtime * Fix up benchmarking * Fixup markdown stucture * replace :emoji_name: by utf8 * fix up header hierarchy * Merge canvas README * Only use "Canvas" as a name * Remove reference to Rocanvas
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Alexander Theißen
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# Cumulus :cloud:
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# Cumulus ☁️
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This repository contains both the Cumulus SDK and also specific chains implemented
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on top of this SDK.
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## Cumulus SDK
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A set of tools for writing [Substrate](https://substrate.io/)-based
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[Polkadot](https://wiki.polkadot.network/en/)
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@@ -14,7 +19,7 @@ make it easy to write parachains for Polkadot by leveraging the power of Substra
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Cumulus clouds are shaped sort of like dots; together they form a system that is intricate,
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beautiful and functional.
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## Consensus
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### Consensus
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[`parachain-consensus`](https://github.com/paritytech/cumulus/blob/master/client/consensus/common/src/parachain_consensus.rs) is a
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[consensus engine](https://docs.substrate.io/v3/advanced/consensus) for Substrate
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@@ -25,18 +30,18 @@ to follow,
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[finalize](https://wiki.polkadot.network/docs/en/learn-consensus#probabilistic-vs-provable-finality),
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and treat as best.
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## Collator
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### Collator
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A Polkadot [collator](https://wiki.polkadot.network/docs/en/learn-collator) for the parachain is
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implemented by the `polkadot-collator` binary.
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# Statemint 🪙
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## Statemint 🪙
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This repository also contains the Statemint runtime (as well as the canary runtime Statemine and the
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test runtime Westmint).
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Statemint is a common good parachain providing an asset store for the Polkadot ecosystem.
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## Build & Launch a Node
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### Build & Launch a Node
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To run a Statemine or Westmint node (Statemint is not deployed, yet) you will need to compile the
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`polkadot-collator` binary:
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@@ -54,14 +59,104 @@ CHAIN=westmint # or statemine
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Refer to the [setup instructions below](#local-setup) to run a local network for development.
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# Rococo :crown:
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## Canvas 🧑🎨
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[![matrix][k1]][k2] [![discord][l1]][l2]
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[k1]: https://img.shields.io/badge/matrix-chat-brightgreen.svg?style=flat
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[k2]: https://riot.im/app/#/room/#ink:matrix.parity.io
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[l1]: https://img.shields.io/discord/722223075629727774?style=flat-square&label=discord
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[l2]: https://discord.com/invite/wGUDt2p
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This is a node implementation of `Canvas`, a common good parachain for `pallet-contracts`
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based wasm smart contracts. Right now this repository only contains the `canvas-kusama` runtime
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which we plan to use for both Rococo and Kusama.
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If you have any questions, feel free to talk to us on [Element][k2] or on [Discord][l2]
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(in the [`ink_smart-contracts`](https://discord.com/channels/722223075629727774/765280480609828864) channel).
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## Developing Smart Contracts for Canvas
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This node contains Substrate's smart contracts module ‒ the
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[`contracts`](https://github.com/paritytech/substrate/tree/master/frame/contracts) pallet.
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This `contracts` pallet takes smart contracts as WebAssembly blobs and defines an API
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for everything a smart contract needs (storage access, …).
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As long as a programming language compiles to WebAssembly and there exists an implementation
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of this API in it, you can write a smart contract for this pallet ‒ and thus for Canvas ‒ in
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that language.
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This is a list of languages you can currently choose from:
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* [Parity's ink!](https://github.com/paritytech/ink) for Rust
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* [ask!](https://github.com/patractlabs/ask) for Assembly Script
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* The [Solang](https://github.com/hyperledger-labs/solang) compiler for Solidity
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There are also different user interfaces and command-line tools you can use to deploy
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or interact with contracts:
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* [polkadot-js](https://polkadot.js.org/apps/)
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* [Canvas UI](https://paritytech.github.io/canvas-ui/) (outdated)
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If you are looking for a quickstart, we can recommend
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[ink!'s Guided Tutorial for Beginners](https://docs.substrate.io/tutorials/v3/ink-workshop/pt1/).
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### Build & Launch a Node
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To run a Canvas node that connects to Rococo (Kusama and Polkadot parachains are not deployed, yet)
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you will need to compile the `polkadot-collator` binary:
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```bash
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cargo build --release --locked -p polkadot-collator
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```
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Once the executable is built, launch the parachain node via:
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```bash
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./target/release/polkadot-collator --chain rocanvas
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```
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Refer to the [setup instructions below](#local-setup) to run a local network for development.
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### Rococo Deployment
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We have a live deployment of the Canvas parachain on [Rococo](https://wiki.polkadot.network/docs/build-pdk#rococo-testnet) ‒
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a testnet for Polkadot and Kusama parachains.
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You can interact with the network through Polkadot JS Apps,
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[click here for a direct link to Canvas](https://polkadot.js.org/apps/?rpc=wss%3A%2F%2Frococo-canvas-rpc.polkadot.io#/explorer).
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The Canvas parachain uses the Rococo relay chain's native token (ROC) instead of having its own token.
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Due to this you'll need ROC in order to deploy contracts on Canvas.
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As a first step, you should create an account. See [here](https://wiki.polkadot.network/docs/learn-account-generation)
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for a detailed guide.
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As a second step, you have to get ROC testnet tokens through the [Rococo Faucet](https://wiki.polkadot.network/docs/learn-DOT#getting-rococo-tokens).
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This is a chat room in which you need to write:
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```bash
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!drip YOUR_SS_58_ADDRESS:1002
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```
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The number `1002` is the parachain id of Canvas on Rococo, by supplying it the faucet will teleport ROC
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tokens directly to your account on the parachain.
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If everything worked out, the teleported ROC tokens will show up under
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[the "Accounts" tab for Canvas](https://polkadot.js.org/apps/?rpc=wss%3A%2F%2Frococo-canvas-rpc.polkadot.io#/accounts).
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Once you have ROC on Canvas you can deploy a contract as you would normally.
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If you're unsure about this, our [guided tutorial](https://docs.substrate.io/tutorials/v3/ink-workshop/pt1/)
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will clarify that for you in no time.
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## Rococo 👑
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[Rococo](https://polkadot.js.org/apps/?rpc=wss://rococo-rpc.polkadot.io) is becoming a [Community Parachain Testbed](https://polkadot.network/blog/rococo-revamp-becoming-a-community-parachain-testbed/) for parachain teams in the Polkadot ecosystem. It supports multiple parachains with the differentiation of long-term connections and recurring short-term connections, to see which parachains are currently connected and how long they will be connected for [see here](https://polkadot.js.org/apps/?rpc=wss%3A%2F%2Frococo-rpc.polkadot.io#/parachains).
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Rococo is an elaborate style of design and the name describes the painstaking effort that has gone
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into this project.
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## Build & Launch Rococo Collators
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### Build & Launch Rococo Collators
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Collators are similar to validators in the relay chain. These nodes build the blocks that will
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eventually be included by the relay chain for a parachain.
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@@ -92,19 +187,21 @@ Once the executable is built, launch collators for each parachain (repeat once e
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./target/release/polkadot-collator --chain $CHAIN --validator
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```
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## Parachains
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### Parachains
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- [Canvas - WASM Smart Contract](https://polkadot.js.org/apps/?rpc=wss%3A%2F%2Frococo-canvas-rpc.polkadot.io#/explorer)
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* [Statemint](https://polkadot.js.org/apps/?rpc=wss%3A%2F%2Frococo-statemint-rpc.polkadot.io#/explorer)
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* [Canvas on Rococo](https://polkadot.js.org/apps/?rpc=wss%3A%2F%2Frococo-canvas-rpc.polkadot.io#/explorer)
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* [RILT](https://polkadot.js.org/apps/?rpc=wss%3A%2F%2Frococo.kilt.io#/explorer)
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The network uses horizontal message passing (HRMP) to enable communication between parachains and
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the relay chain and, in turn, between parachains. This means that every message is sent to the relay
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chain, and from the relay chain to its destination parachain.
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## Local Setup
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### Local Setup
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Launch a local setup including a Relay Chain and a Parachain.
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### Launch the Relay Chain
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#### Launch the Relay Chain
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```bash
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# Compile Polkadot with the real overseer feature
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@@ -121,7 +218,7 @@ cargo build --release
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./target/release/polkadot --chain rococo-local-cfde.json --bob --tmp --port 30334
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```
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### Launch the Parachain
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#### Launch the Parachain
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```bash
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# Compile
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@@ -144,11 +241,11 @@ cargo build --release
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./target/release/polkadot-collator --tmp --port 40337 --ws-port 9948 -- --execution wasm --chain ../polkadot/rococo-local-cfde.json --port 30337
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```
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### Register the parachain
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#### Register the parachain
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## Containerize
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### Containerize
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After building `polkadot-collator` with cargo or with Parity CI image as documented in [this chapter](#build--launch-rococo-collators),
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the following will allow producing a new docker image where the compiled binary is injected:
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