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ci: add Docker build and push for PRs targeting devnet branches#429

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ch4r10t33r wants to merge 8 commits intoleanEthereum:mainfrom
ch4r10t33r:main
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ci: add Docker build and push for PRs targeting devnet branches#429
ch4r10t33r wants to merge 8 commits intoleanEthereum:mainfrom
ch4r10t33r:main

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@ch4r10t33r
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Adds .github/workflows/docker-devnet.yml: when a PR targets a devnet branch (devnet3, devnet4, devnet5, etc.), the workflow builds and pushes ghcr.io/leanethereum/leanspec-node:<branch> (e.g. :devnet3).

ch4r10t33r and others added 8 commits February 6, 2026 15:05
Introduces a new --is-aggregator command-line parameter that enables
aggregator mode for consensus nodes. When enabled, the node performs
attestation aggregation operations and advertises this capability in
its ENR.

Changes:
- Add is_aggregator field to NodeConfig with default value False
- Add IS_AGGREGATOR ENR key constant for peer discovery
- Add is_aggregator property to ENR class for reading aggregator flag
- Add is_aggregator field to NetworkService for ENR advertisement
- Add --is-aggregator CLI argument with help text
- Thread flag through initialization paths (genesis and checkpoint sync)
- Add logging when aggregator mode is enabled

Usage:
  python -m lean_spec --genesis config.yaml --is-aggregator

The flag defaults to False, maintaining backward compatibility with
existing deployments. When True, the node's ENR will include the
is_aggregator key, allowing peers to discover aggregator nodes.
- Build image for linux/amd64 and linux/arm64 on every PR and push to main
- Publish ghcr.io/leanethereum/leanspec-node:latest only on merge to main
Avoid transient failures when uv fetches python-build-standalone
(HTTP/2 stream errors). Use Actions tool-cache Python instead.
@ch4r10t33r
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Superseded by a PR containing only the CI commit.

@ch4r10t33r ch4r10t33r closed this Mar 1, 2026
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