Commit Graph

13 Commits (2a69f48541e0ed7fdf81fc88b079474331eeee76)

Author SHA1 Message Date
Will Norris 3ec5be3f51 all: remove AUTHORS file and references to it
This file was never truly necessary and has never actually been used in
the history of Tailscale's open source releases.

A Brief History of AUTHORS files
---

The AUTHORS file was a pattern developed at Google, originally for
Chromium, then adopted by Go and a bunch of other projects. The problem
was that Chromium originally had a copyright line only recognizing
Google as the copyright holder. Because Google (and most open source
projects) do not require copyright assignemnt for contributions, each
contributor maintains their copyright. Some large corporate contributors
then tried to add their own name to the copyright line in the LICENSE
file or in file headers. This quickly becomes unwieldy, and puts a
tremendous burden on anyone building on top of Chromium, since the
license requires that they keep all copyright lines intact.

The compromise was to create an AUTHORS file that would list all of the
copyright holders. The LICENSE file and source file headers would then
include that list by reference, listing the copyright holder as "The
Chromium Authors".

This also become cumbersome to simply keep the file up to date with a
high rate of new contributors. Plus it's not always obvious who the
copyright holder is. Sometimes it is the individual making the
contribution, but many times it may be their employer. There is no way
for the proejct maintainer to know.

Eventually, Google changed their policy to no longer recommend trying to
keep the AUTHORS file up to date proactively, and instead to only add to
it when requested: https://opensource.google/docs/releasing/authors.
They are also clear that:

> Adding contributors to the AUTHORS file is entirely within the
> project's discretion and has no implications for copyright ownership.

It was primarily added to appease a small number of large contributors
that insisted that they be recognized as copyright holders (which was
entirely their right to do). But it's not truly necessary, and not even
the most accurate way of identifying contributors and/or copyright
holders.

In practice, we've never added anyone to our AUTHORS file. It only lists
Tailscale, so it's not really serving any purpose. It also causes
confusion because Tailscalars put the "Tailscale Inc & AUTHORS" header
in other open source repos which don't actually have an AUTHORS file, so
it's ambiguous what that means.

Instead, we just acknowledge that the contributors to Tailscale (whoever
they are) are copyright holders for their individual contributions. We
also have the benefit of using the DCO (developercertificate.org) which
provides some additional certification of their right to make the
contribution.

The source file changes were purely mechanical with:

    git ls-files | xargs sed -i -e 's/\(Tailscale Inc &\) AUTHORS/\1 contributors/g'

Updates #cleanup

Change-Id: Ia101a4a3005adb9118051b3416f5a64a4a45987d
Signed-off-by: Will Norris <will@tailscale.com>
3 days ago
Fran Bull f4a4bab105 tsconsensus: skip integration tests in CI
There is an issue to add non-integration tests: #18022

Fixes #15627 #16340

Signed-off-by: Fran Bull <fran@tailscale.com>
2 months ago
Alex Chan c2e474e729 all: rename variables with lowercase-l/uppercase-I
See http://go/no-ell

Signed-off-by: Alex Chan <alexc@tailscale.com>

Updates #cleanup

Change-Id: I8c976b51ce7a60f06315048b1920516129cc1d5d
2 months ago
Brad Fitzpatrick 653d0738f9 types/netmap: remove PrivateKey from NetworkMap
It's an unnecessary nuisance having it. We go out of our way to redact
it in so many places when we don't even need it there anyway.

Updates #12639

Change-Id: I5fc72e19e9cf36caeb42cf80ba430873f67167c3
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 months ago
Alex Chan c59c859f7d tsconsensus: mark several of these tests as known flaky
Updates https://github.com/tailscale/tailscale/issues/15627

Signed-off-by: Alex Chan <alexc@tailscale.com>
3 months ago
Fran Bull b48d2de6ab cmd/natc,tsconsensus: add cluster config admin
Add the ability for operators of natc in consensus mode to remove
servers from the raft cluster config, without losing other state.

Updates #14667

Signed-off-by: Fran Bull <fran@tailscale.com>
5 months ago
Fran Bull d986baa18f tsconsensus,cmd/natc: add 'follower only' bootstrap option
Currently consensus has a bootstrap routine where a tsnet node tries to
join each other node with the cluster tag, and if it is not able to join
any other node it starts its own cluster.

That algorithm is racy, and can result in split brain (more than one
leader/cluster) if all the nodes for a cluster are started at the same
time.

Add a FollowOnly argument to the bootstrap function. If provided this
tsnet node will never lead, it will try (and retry with exponential back
off) to follow any node it can contact.

Add a --follow-only flag to cmd/natc that uses this new tsconsensus
functionality.

Also slightly reorganize some arguments into opts structs.

Updates #14667

Signed-off-by: Fran Bull <fran@tailscale.com>
5 months ago
Fran Bull 5c560d7489 tsconsensus: check for bootstrap error
We have been unintentionally ignoring errors from calling bootstrap.
bootstrap sometimes calls raft.BootstrapCluster which sometimes returns
a safe to ignore error, handle that case appropriately.

Updates #14667

Signed-off-by: Fran Bull <fran@tailscale.com>
5 months ago
Brad Fitzpatrick 12e92b1b08 tsconsensus: skipping slow non-applicable tests on Windows for now
Updates #16340

Change-Id: I61b0186295c095f99c5be81dc4dced5853025d35
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
7 months ago
Fran Bull 3d6e1171c1 tsconsensus: protect from data race
lock for access to a.peers

Fixes #16284

Signed-off-by: Fran Bull <fran@tailscale.com>
7 months ago
Fran Bull c9a5d638e9 tsconsensus: enable writing state to disk
The comments in the raft code say to only use the InMemStore for tests.

Updates #16027

Signed-off-by: Fran Bull <fran@tailscale.com>
8 months ago
Fran Bull 11d1dd2aed tsconsensus: mark 2 tests that were flaky in CI
Updates #15627

Signed-off-by: Fran Bull <fran@tailscale.com>
10 months ago
Fran Bull 8597b25840 tsconsensus: add a tsconsensus package
tsconsensus enables tsnet.Server instances to form a consensus.

tsconsensus wraps hashicorp/raft with
 * the ability to do discovery via tailscale tags
 * inter node communication over tailscale
 * routing of commands to the leader

Updates #14667

Signed-off-by: Fran Bull <fran@tailscale.com>
10 months ago