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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
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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>
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Add support for authenticating the gitops-pusher using workload identity
federation.
Updates https://github.com/tailscale/corp/issues/34172
Signed-off-by: Mario Minardi <mario@tailscale.com>
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This will help debug unexpected issues encountered by consumers of the gitops-pusher.
Updates tailscale/corp#26664
Signed-off-by: Percy Wegmann <percy@tailscale.com>
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If previousEtag is empty, then we assume control ACLs were not modified
manually and push the local ACLs. Instead, we defaulted to localEtag
which would be different if local ACLs were different from control.
AFAIK this was always buggy, but never reported?
Fixes #14295
Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
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In a situation when manual edits are made on the admin panel, around the
GitOps process, the pusher will be stuck if `--fail-on-manual-edits` is
set, as expected.
To recover from this, there are 2 options:
1. revert the admin panel changes to get back in sync with the code
2. check in the manual edits to code
The former will work well, since previous and local ETags will match
control ETag again. The latter will still fail, since local and control
ETags match, but previous does not.
For this situation, check the local ETag against control first and
ignore previous when things are already in sync.
Updates https://github.com/tailscale/corp/issues/22177
Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
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For cases where users want to be extra careful about not overwriting
manual changes, add a flag to hard-fail. This is only useful if the etag
cache is persistent or otherwise reliable. This flag should not be used
in ephemeral CI workers that won't persist the cache.
Updates https://github.com/tailscale/corp/issues/22177
Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
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`os.LookupEnv` may return true if the variable is present in
the environment but an empty string. We should only attempt
to set OAuth Config if thsoe values are non-empty.
Updates gitops-acl-action#33
Signed-off-by: Jenny Zhang <jz@tailscale.com>
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gitops-pusher supports authenticating with an API key or OAuth
credentials (added in #7393). You shouldn't ever use both of those
together, so we error if both are set.
In tailscale/gitops-acl-action#24, OAuth support is being added to the
GitHub action. In that environment, both the TS_API_KEY and OAuth
variables will be set, even if they are empty values. This causes an
error in gitops-pusher which expects only one to be set.
Update gitops-pusher to check that only one set of environment variables
are non-empty, rather than just checking if they are set.
Updates #7393
Signed-off-by: Will Norris <will@tailscale.com>
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This changes the ACLTestError type to reuse the existing/identical
types from the ACL implementation, to avoid issues in the future if
the two types fall out of sync.
Updates #8645
Signed-off-by: Jenny Zhang <jz@tailscale.com>
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Signed-off-by: Vladimir Pouzanov <farcaller@gmail.com>
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This updates all source files to use a new standard header for copyright
and license declaration. Notably, copyright no longer includes a date,
and we now use the standard SPDX-License-Identifier header.
This commit was done almost entirely mechanically with perl, and then
some minimal manual fixes.
Updates #6865
Signed-off-by: Will Norris <will@tailscale.com>
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See package doc.
Change-Id: Ibbfc8e1f98294217c56f3a9452bd93ffa3103572
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
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Fixes https://github.com/tailscale/coral/issues/90
Signed-off-by: Denton Gentry <dgentry@tailscale.com>
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Apparently the validate route doesn't check content-types or handle
hujson with comments correctly. This patch makes gitops-pusher convert
the hujson to normal json.
Signed-off-by: Xe <xe@tailscale.com>
Signed-off-by: Xe <xe@tailscale.com>
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This makes a "modified externally" error turn into a "modified externally" warning. It means CI won't fail if someone does something manually in the admin console.
Signed-off-by: Xe <xe@tailscale.com>
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Signed-off-by: Xe <xe@tailscale.com>
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This allows gitops-pusher to detect external ACL changes. I'm not
sure what to call this problem, so I've been calling it the "three
version problem" in my notes. The basic problem is that at any given
time we only have two versions of the ACL file at any given point:
the version in CONTROL and the one in the git repo. In order to
check if there has been tampering of the ACL files in the admin
panel, we need to have a _third_ version to compare against.
In this case I am not storing the old ACL entirely (though that could
be a reasonable thing to add in the future), but only its sha256sum.
This allows us to detect if the shasum in control matches the shasum
we expect, and if that expectation fails, then we can react
accordingly.
This will require additional configuration in CI, but I'm sure that
can be done.
Signed-off-by: Xe <xe@tailscale.com>
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Signed-off-by: Xe <xe@tailscale.com>
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Signed-off-by: Xe <xe@tailscale.com>
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Signed-off-by: Xe <xe@tailscale.com>
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Signed-off-by: Xe <xe@tailscale.com>
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GitHub Actions lets you annotate lines in files as errors[1]. This syntax
will only fire on syntax errors. Future improvements can extend this to
properly annotate ACL tests too.
[1]: https://docs.github.com/en/actions/using-workflows/workflow-commands-for-github-actions#setting-an-error-message
Signed-off-by: Xe <xe@tailscale.com>
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Apparently the API for running ACL tests returns a 200 if the ACL tests
fail. This is weird, but we can handle it.
Signed-off-by: Xe <xe@tailscale.com>
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This is for an upcoming blogpost on how to manage Tailscale ACLs using a
GitOps flow. This tool is intended to be used in CI and will allow users
to have a git repository be the ultimate source of truth for their ACL
file. This enables ACL changes to be proposed, approved and discussed
before they are applied.
Signed-off-by: Xe <xe@tailscale.com>
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