Add memberlist

[lucasleecr]

Link to the codebase

https://github.com/hashicorp/memberlist/

Which release/version did you read?

Commit https://github.com/hashicorp/memberlist/commit/bfc6c8886aaf7d2f180da4717014f54f73e307a6. The project doesn't do releases too often.

Why it is a good project to read?

• Membership in distributed systems. Re-useable in other projects.
• memberlist is a building block for Serf, which is a building block for Consul.

Starting point

memberlist.go (https://github.com/hashicorp/memberlist/blob/bfc6c8886aaf7d2f180da4717014f54f73e307a6/memberlist.go)

Reading order

No specific order.

Interesting parts

• The Delegate interface that can be used as hooks in the gossip layer.
• Payload handling, including encrypted messages

Any parts should be skipped?

No.

Any other tips?

• Read the tests. It helps to understand how interfaces are used. It also has end-to-end tests.

Links and resources

• Api doc https://godoc.org/github.com/hashicorp/memberlist
• Serf homepage https://www.serf.io/

Contributor

@lucasleecr