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Implement Event observer and Settings for 3rd party dep injection #5693

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merged 2 commits into from
Mar 23, 2021

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@frrist frrist commented Feb 26, 2021

What

  • Implement TipSetObserver interface for observing tipset events (apply/revert)
  • Implement Settings opts for 3rd party dep injection (allows Visor to instantiate a Lotus node)

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First pass - looks pretty good

(I'm assuming you want a review from @iand before merging)

Makefile Outdated
lotus-sentinel: $(BUILD_DEPS)
rm -f lotus-sentinel
go build -o lotus-sentinel ./cmd/lotus-sentinel
.PHONY: lotus-keygen
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Suggested change
.PHONY: lotus-keygen
.PHONY: lotus-sentinel

},
}

func ImportChain(ctx context.Context, r repo.Repo, fname string, snapshot bool) (err error) {
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I'd try to deduplicate this with the 'normal' daemon

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@frrist frrist Mar 2, 2021

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Any preference for where this should live? In order for other packages to use it, we'll have to move it out of this file since it's in package main -- my first thought was the repo package.

This could also just be dropped as a feature from the lotus-sentinel binary and users would be required to perform the import with the lotus bin, thoughts @iand?

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Would prefer not to have to make the user switch between binaries for this task. Let's find a new home for this function in a suitable lotus package.

node/builder.go Outdated
@@ -14,6 +14,7 @@ import (
"github.com/filecoin-project/lotus/chain/store"
"github.com/filecoin-project/lotus/chain/vm"
"github.com/filecoin-project/lotus/chain/wallet"
api2 "github.com/filecoin-project/lotus/cmd/lotus-sentinel/api"
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Suggested change
api2 "github.com/filecoin-project/lotus/cmd/lotus-sentinel/api"
sentinelapi "github.com/filecoin-project/lotus/cmd/lotus-sentinel/api"

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Pretty happy with how this turned out. Now the question is whether the binary needs to live in the lotus repo or can it live in sentinel's? The extension points and exposure of things like ImportChain obviously have to stay in Lotus but once we have those it seems by moving the binary elsewhere we could avoid Lotus depending on the all the visor and postgres packages. Plus we get to decouple the development processes of the two projects.

},
}

func ImportChain(ctx context.Context, r repo.Repo, fname string, snapshot bool) (err error) {
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Would prefer not to have to make the user switch between binaries for this task. Let's find a new home for this function in a suitable lotus package.

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frrist commented Mar 3, 2021

I'm going to extract the lotus-sentinel binary code to the visor repo and modify this PR only to contain the changes required to make that work -- I suspect they will be minimal (sorry for the churn)

@frrist frrist changed the title Implement lotus-sentinel binary for sentinel integration Implement Event observer and Settings for 3rd party dep injection Mar 3, 2021
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frrist commented Mar 4, 2021

Converting to a draft as this will require more changes than I anticipated. The other half lives here: filecoin-project/lily#408

- allows tipset apply and revert to be observed
- motivating use case running a lotus-sentinel node
@magik6k magik6k merged commit f145d4f into master Mar 23, 2021
@magik6k magik6k deleted the sentinel/binary branch March 23, 2021 10:15
@magik6k magik6k mentioned this pull request Apr 13, 2021
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3 participants