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Chevdor
61 lines
2.4 KiB
Markdown
61 lines
2.4 KiB
Markdown
## Using Containers
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Using containers via **Podman** or **Docker** brings benefit, whether it is to build a container image or
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run a node while keeping a minimum footprint on your local system.
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This document mentions using `podman` or `docker`. Those are usually interchangeable and it is encouraged using preferably **Podman**. If you have podman installed and want to use all the commands mentioned below, you can simply create an alias with `alias docker=podman`.
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There are a few options to build a node within a container and inject a binary inside an image.
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### Parity built container image
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Parity builds and publishes a container image that can be found as `docker.io/parity/polkadot-parachain`.
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### Parity CI image
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Parity maintains and uses internally a generic "CI" image that can be used as a base to build binaries: [Parity CI container image](https://github.com/paritytech/scripts/tree/master/dockerfiles/ci-linux):
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The command below allows building a Linux binary without having to even install Rust or any dependency locally:
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```bash
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docker run --rm -it \
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-w /shellhere/cumulus \
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-v $(pwd):/shellhere/cumulus \
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paritytech/ci-linux:production
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cargo build --release --locked --bin polkadot-parachain
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sudo chown -R $(id -u):$(id -g) target/
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```
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If you want to reproduce other steps of CI process you can use the following
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[guide](https://github.com/paritytech/scripts#gitlab-ci-for-building-docker-images).
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### Injected image
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Injecting a binary inside a base image is the quickest option to get a working container image. This only works if you were able to build a Linux binary, either locally, or using a container as described above.
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After building a Linux binary ()`polkadot-parachain`) with cargo or with Parity CI image as documented above, the following command allows producing a new container image where the compiled binary is injected:
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```bash
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./docker/scripts/build-injected-image.sh
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```
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### Container build
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Alternatively, you can build an image with a builder pattern. This options takes a while but offers a simple method for anyone to get a working container image without requiring any of the Rust toolchain installed locally.
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```bash
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docker build \
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--tag $OWNER/$IMAGE_NAME \
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--file ./docker/polkadot-parachain_builder.Containerfile .
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```
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You may then run your new container:
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```bash
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docker run --rm -it \
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$OWNER/$IMAGE_NAME \
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--collator --tmp \
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--execution wasm \
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--chain /specs/westmint.json
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```
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