channeldb: add persist nodeannounment config in db #8690

Abdulkbk · 2024-04-25T12:52:49Z

In this commit, we save the node announcement config in the database so that we can retrieve the config later and use it when a node restarts.

closes #7123

Change Description

Description of change / link to associated issue.
We start by checking the configuration from the configuration file lnd.conf or arguments when the node starts. If the configuration is absent, we check for the ones persisted on disk and use them; otherwise, we resolve to the default settings.

Steps to Test

Steps for reviewers to follow to test the change.

Make sure no alias is not set in your lnd.conf
Use the updatenodeannouncement RPC call and set something as your alias
Verify the alias is set using lncli getinfo
Now stop and start the node again and run lncli getinfo again
You'll see that the alias is set to the first 10 characters of the node's pubkey

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Testing

Your PR passes all CI checks.
Tests covering the positive and negative (error paths) are included.
Bug fixes contain tests triggering the bug to prevent regressions.

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The change obeys the Code Documentation and Commenting guidelines, and lines wrap at 80.
Commits follow the Ideal Git Commit Structure.
Any new logging statements use an appropriate subsystem and logging level.
Any new lncli commands have appropriate tags in the comments for the rpc in the proto file.
There is a change description in the release notes, or [skip ci] in the commit message for small changes.

📝 Please see our Contribution Guidelines for further guidance.

In this commit, we save nodeannouncement config in the database so that we will be able to retrieve the config later and use them on retart Signed-off-by: Abdullahi Yunus <abdoollahikbk@gmail.com>

coderabbitai · 2024-04-25T12:52:54Z

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In this commit, we check for nodeannouncement alias in the db before creating a disk representation of a node. If there none, we default to first 10 characters of our pubkey.

In this commit, we check for alias that are persisted in disk and use them when the node is restarting.

Chinwendu20

Nice work, Left questions and doubts about the architecture

channeldb/db.go

Chinwendu20 · 2024-05-28T10:52:09Z

channeldb/node.go

I am not sure this should be channeldb as it seems to not correlate with what is done here, perhaps a separate db?
@guggero @ellemouton what do you think?

channeldb does store everything about other channel node announcements today.

ohh could not find where node announcements were persisted in the code. Just saw that announcements were received and used to create lightningNode objects which were persisted in the graph database but just saw that even the graph database is created by channeldb

In that case maybe we can use the miscDB seems in line in name for this functionality or create another field for it in the server struct instead of making it a part of the channelStateDB

Want to learn from what you think

ohh could not find where node announcements were persisted in the code. Just saw that announcements were received and used to create lightningNode objects which were persisted in the graph database but just saw that even the graph database is created by channeldb

In that case maybe we can use the miscDB seems in line in name for this functionality or create another field for it in the server struct instead of making it a part of the channelStateDB

Want to learn from what you think

Using the miscDB seems like a good idea since it contains all the other databases within channel db. I used it here in fact to load the persisted config.

ellemouton

Thanks for the PR,
I think we want things to be more general and not just for the alias. Ie, for any of the fields you can change via UpdateNodeAnnouncement

ellemouton · 2024-05-28T13:45:49Z

channeldb/node.go

channeldb does store everything about other channel node announcements today.

ellemouton · 2024-05-28T13:46:36Z

channeldb/node.go

+type NodeAnnouncementDB struct {
+	backend kvdb.Backend
+}
+


we already persist our node announcement in the bucket storing all the collected node announcement. Can we not just grab our latest one from there?

Abdulkbk · 2024-05-28T21:06:48Z

Nice work, Left questions and doubts about the architecture

Thanks for reviewing @Chinwendu20. I will look at the comments, answer your questions, and address any suggestions you gave me

channeldb: add persist nodeannounment config in db

b0815a1

In this commit, we save nodeannouncement config in the database so that we will be able to retrieve the config later and use them on retart Signed-off-by: Abdullahi Yunus <abdoollahikbk@gmail.com>

channeldb: check for persisted node announcement alias

d7719d8

In this commit, we check for nodeannouncement alias in the db before creating a disk representation of a node. If there none, we default to first 10 characters of our pubkey.

Abdulkbk marked this pull request as ready for review May 12, 2024 06:59

channeldb+lnd: check for persisted alias in disk

815e069

In this commit, we check for alias that are persisted in disk and use them when the node is restarting.

Abdulkbk mentioned this pull request May 26, 2024

[feature]: Allow persisting dynamic configured alias when not set in lnd.conf or arguments #7123

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channeldb: add persist nodeannounment config in db #8690

channeldb: add persist nodeannounment config in db #8690

Abdulkbk commented Apr 25, 2024 •

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Abdulkbk commented May 28, 2024

channeldb: add persist nodeannounment config in db #8690

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channeldb: add persist nodeannounment config in db #8690

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Abdulkbk commented Apr 25, 2024 • edited

Change Description

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coderabbitai bot commented Apr 25, 2024 • edited

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