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feat!: enable standalone consumers to reuse existing clients for ICS #2400

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feat!: enable standalone consumers to reuse existing clients for ICS #2400

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mpoke
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@mpoke mpoke commented Nov 13, 2024 •
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Description

Closes: #894

  • Remove code from app/consumer-democracy/app.go

  • Add genesis transformation for compatibility with older consumer versions

  • Update docs -- changeover guidelines

  • Add e2e tests for standalone to consumer changeover

    • Start standalone chain and provider chain
    • Create transfer channel to provider
    • Create consumer chain on provider with valid connection ID
    • Upgrade standalone chain to use consumer module with the genesis from the provider
    • Verify that the genesis from the provider doesn't contain a client state or a consensus state
    • Create CCV channel and check that the underlying client matches the one for transfer

Author Checklist

All items are required. Please add a note to the item if the item is not applicable and
please add links to any relevant follow up issues.

I have...

  • Included the correct type prefix in the PR title
  • Added ! to the type prefix if the change is state-machine breaking
  • Confirmed this PR does not introduce changes requiring state migrations, OR migration code has been added to consumer and/or provider modules
  • Targeted the correct branch (see PR Targeting)
  • Provided a link to the relevant issue or specification
  • Followed the guidelines for building SDK modules
  • Included the necessary unit and integration tests
  • Added a changelog entry to CHANGELOG.md
  • Included comments for documenting Go code
  • Updated the relevant documentation or specification
  • Reviewed "Files changed" and left comments if necessary
  • Confirmed all CI checks have passed
  • If this PR is library API breaking, bump the go.mod version string of the repo, and follow through on a new major release

Reviewers Checklist

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your handle next to the items reviewed if you only reviewed selected items.

I have...

  • confirmed the correct type prefix in the PR title
  • confirmed ! the type prefix if the change is state-machine breaking
  • confirmed this PR does not introduce changes requiring state migrations, OR confirmed migration code has been added to consumer and/or provider modules
  • confirmed all author checklist items have been addressed
  • reviewed state machine logic
  • reviewed API design and naming
  • reviewed documentation is accurate
  • reviewed tests and test coverage

@github-actions github-actions bot added C:x/consumer Assigned automatically by the PR labeler C:x/provider Assigned automatically by the PR labeler C:x/types Assigned automatically by the PR labeler labels Nov 13, 2024
@github-actions github-actions bot added the C:Docs Assigned automatically by the PR labeler label Nov 13, 2024
@github-actions github-actions bot added the C:Testing Assigned automatically by the PR labeler label Nov 13, 2024
mpoke
mpoke commented Nov 13, 2024
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app/consumer-democracy/app.go
@@ -677,6 +677,7 @@ func New(
}
}

// TODO: remove this code
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TODO: is any of the code below needed?

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That's how the changeover is done. The chain needs to read the new validator set from somewhere.

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Not sure I understand. Why are we calling InitGenesis. This should be automatically called when adding a new module to the chain.

@mpoke mpoke changed the title feat: enable standalone consumers to reuse existing clients for ICS feat!: enable standalone consumers to reuse existing clients for ICS Nov 13, 2024
MSalopek
MSalopek reviewed Nov 13, 2024
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proto/interchain_security/ccv/v1/shared_consumer.proto
// genesis state will default to false
bool new_chain = 3;
// Flag indicating whether the consumer CCV module starts in pre-CCV state
bool preCCV = 4;
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@MSalopek MSalopek Nov 13, 2024 •
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A little problematic to understand why there's new_chain and preCCV, but I get it.

Nit: Maybe consider uniform snakecase/camelcase usage. (I don't have strong feelings, feel free to ignore).

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preCCV is already a field in the consumer genesis, so I cannot change the name without breaking compatibility.

@github-actions github-actions bot added the C:Build Assigned automatically by the PR labeler label Dec 23, 2024
github-advanced-security[bot]
github-advanced-security bot found potential problems Dec 23, 2024
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tests/interchain/chainsuite/chain_spec_sovereign.go Dismissed Show dismissed Hide dismissed
tests/interchain/chainsuite/config.go Dismissed Show dismissed Hide dismissed
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C:Build Assigned automatically by the PR labeler C:Docs Assigned automatically by the PR labeler C:Testing Assigned automatically by the PR labeler C:x/consumer Assigned automatically by the PR labeler C:x/provider Assigned automatically by the PR labeler C:x/types Assigned automatically by the PR labeler
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consumer GenesisState.preCCV is hardcoded
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@mpoke @MSalopek @stana-miric