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rococo-runtime: RococoGenesisExt removed (#1490)

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[`RococoGenesisExt`](https://github.com/paritytech/polkadot-sdk/blob/a414ea7515c9cdc81f1d12410e646afc148250e8/polkadot/node/service/src/chain_spec.rs#L152-L171)
is removed. It was the hack to allow overwriting
`EpochDurationInBlocks`. Removal of `RococGenesisExt` prevents from
manipulating the state to change the runtime constants.

Changes:
- Environment variable which controls the `time::EpochDurationInBlocks`
value was added: `ROCOCO_EPOCH_DURATION` (epoch duration will be set to
the value of env),
- `10,100,600` versions of rococo-runtime are built in CI and put into `polkadot-debug` docker image.

`rococo-runtime` building examples:
- to build runtime for `versi_staging_testnet` which had
EpochDurationInBlocks set to 100:
  ```
ROCOCO_EPOCH_DURATION=100 cargo build --features=fast-runtime -p
rococo-runtime
  ```
- to build runtime for `wococo_development`
  ```
ROCOCO_EPOCH_DURATION=10 cargo build --features=fast-runtime -p
rococo-runtime
  ```
- to build `versi-staging` chain spec:
  ```
ROCOCO_EPOCH_DURATION=100 cargo run -p polkadot --features=fast-runtime
-- build-spec --chain versi-staging --raw
  ```
- to build `wococo-dev` chain spec:
  ```
ROCOCO_EPOCH_DURATION=10 cargo run -p polkadot --features=fast-runtime
-- build-spec --chain wococo-dev --raw
  ```

It is also possible to change the epoch duration by replacing the `code` field in the chain spec with the hex dump of pre-built runtime wasm blob (because the epoch duration is hard-coded into wasm blob).

---------

Co-authored-by: Bastian Köcher <git@kchr.de>
This commit is contained in:
Michal Kucharczyk
2023-09-28 18:29:12 +02:00
committed by GitHub
parent c1eb342b14
commit 50242a61d7
10 changed files with 46 additions and 75 deletions
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docker/dockerfiles/polkadot/polkadot_injected_debug.Dockerfile
+4 -1
View File
@@ -28,13 +28,16 @@ RUN apt-get update && \
find /var/lib/apt/lists/ -type f -not -name lock -delete; \
# add user and link ~/.local/share/polkadot to /data
useradd -m -u 1000 -U -s /bin/sh -d /polkadot polkadot && \
mkdir -p /data /polkadot/.local/share && \
mkdir -p /data /polkadot/.local/share /polkdot/runtimes && \
chown -R polkadot:polkadot /data && \
ln -s /data /polkadot/.local/share/polkadot
# add polkadot binaries to docker image
COPY ./artifacts/polkadot ./artifacts/polkadot-execute-worker ./artifacts/polkadot-prepare-worker /usr/local/bin
# add runtime binaries to docker image
COPY ./artifacts/runtimes /polkadot/runtimes/
USER polkadot
# check if executable works in this container