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Add information about the parity container image (#2783)

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Chevdor
2023-07-25 16:48:56 +02:00
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cumulus/README.md
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@@ -5,6 +5,8 @@
This repository contains both the Cumulus SDK and also specific chains implemented
on top of this SDK.
If you only want to run a **Polkadot Parachain Node**, check out our [container section](./docs/container.md).
## Cumulus SDK
A set of tools for writing [Substrate](https://substrate.io/)-based
@@ -37,6 +39,8 @@ and treat as best.
A Polkadot [collator](https://wiki.polkadot.network/docs/en/learn-collator) for the parachain is
implemented by the `polkadot-parachain` binary (previously called `polkadot-collator`).
You may run `polkadot-parachain` locally after building it or using one of the container option described [here](./docs/container.md).
### Relay Chain Interaction
To operate a parachain node, a connection to the corresponding relay chain is necessary. This can be
achieved in one of two ways:
@@ -220,19 +224,6 @@ To run a Rococo collator you will need to compile the following binary:
cargo build --release --locked --bin polkadot-parachain
```
Otherwise you can compile it with
[Parity CI docker image](https://github.com/paritytech/scripts/tree/master/dockerfiles/ci-linux):
```bash
docker run --rm -it -w /shellhere/cumulus \
-v $(pwd):/shellhere/cumulus \
paritytech/ci-linux:production cargo build --release --locked --bin polkadot-parachain
sudo chown -R $(id -u):$(id -g) target/
```
If you want to reproduce other steps of CI process you can use the following
[guide](https://github.com/paritytech/scripts#gitlab-ci-for-building-docker-images).
Once the executable is built, launch collators for each parachain (repeat once each for chain
`tick`, `trick`, `track`):
@@ -240,6 +231,8 @@ Once the executable is built, launch collators for each parachain (repeat once e
./target/release/polkadot-parachain --chain $CHAIN --validator
```
You can also build [using a container](./docs/container.md).
### Parachains
* [Asset Hub](https://polkadot.js.org/apps/?rpc=wss%3A%2F%2Frococo-statemint-rpc.polkadot.io#/explorer)
@@ -249,23 +242,3 @@ Once the executable is built, launch collators for each parachain (repeat once e
The network uses horizontal message passing (HRMP) to enable communication between parachains and
the relay chain and, in turn, between parachains. This means that every message is sent to the relay
chain, and from the relay chain to its destination parachain.
### Containerize
After building `polkadot-parachain` with cargo or with Parity CI image as documented in [this chapter](#build--launch-rococo-collators),
the following will allow producing a new docker image where the compiled binary is injected:
```bash
./docker/scripts/build-injected-image.sh
```
Alternatively, you can build an image with a builder pattern:
```bash
docker build --tag $OWNER/$IMAGE_NAME --file ./docker/polkadot-parachain_builder.Containerfile .
You may then run your new container:
```bash
docker run --rm -it $OWNER/$IMAGE_NAME --collator --tmp --chain /specs/westmint.json
```