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Co-authored-by: ctiller <ctiller@users.noreply.github.com>
This is a big rewrite of global config.
It does a few things, all somewhat intertwined:
1. centralize the list of configuration we have to a yaml file that can
be parsed, and code generated from it
2. add an initialization and a reset stage so that config vars can be
centrally accessed very quickly without the need for caching them
3. makes the syntax more C++ like (less macros!)
4. (optionally) adds absl flags to the OSS build
This first round of changes is intended to keep the system where it is
without major changes. We pick up absl flags to match internal code and
remove one point of deviation - but importantly continue to read from
the environment variables. In doing so we don't force absl flags on our
customers - it's possible to configure grpc without the flags - but
instead allow users that do use absl flags to configure grpc using that
mechanism. Importantly this lets internal customers configure grpc the
same everywhere.
Future changes along this path will be two-fold:
1. Move documentation generation into the code generation step, so that
within the source of truth yaml file we can find all documentation and
data about a configuration knob - eliminating the chance of forgetting
to document something in all the right places.
2. Provide fuzzing over configurations. Currently most config variables
get stashed in static constants across the codebase. To fuzz over these
we'd need a way to reset those cached values between fuzzing rounds,
something that is terrifically difficult right now, but with these
changes should simply be a reset on `ConfigVars`.
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To support TPC feature for BYOID (3PI), we need to remove the validation
the pattern of impersonation endpoints, sts endpoints and token info
endpoints since they are different in TPC regions.
A security review is already passed at b/261634871
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PR #32215 added the verified root cert subject to the lower level
`tsi_peer`. This PR is a companion to that and completes the feature by
bubbling the information up to the `TsiCustomVerificationCheckRequest`
which is part of the user facing API for implementing custom
verification callbacks.
Enforce a minimum value for the `refresh_interval_sec_` for the
`FileWatcherCertificateProvider`. There have been issues found when this
is set to 0, and the security team discussed and agreed that 0 should
not be a valid value for this use-case.
I made the `refresh_interval_sec_` public to make it easy to test - I
didn't immediately see an easy way around this. I found `FRIEND_TEST`
exists for accessing private members, but I didn't see that used
anywhere in grpc. If there is a better solution to this, please let me
know.
* Revert "Revert "xDS RouteConfig: use ValidationErrors and add unit test (#31418)" (#31653)"
This reverts commit 335b74fea7.
* use auto instead of explicitly naming the protobuf map type
Specific changes:
- Use absl::variant<> for HashPolicy types.
- Pull validation of resulting LB policy configs out of ClusterSpecifierPlugin registry and into RouteConfig validation.
- Don't ignore missing Any fields in HTTP filter configs if is_optional is true, since is_optional should apply only to unsupported filter types, not to malformed resource protos.
- Use ExtractXdsExtension() for HttpConnectionManager config itself.
- Minor API improvements to StatusCodeSet to make it a bit more useful in tests.
- Changed StringMatcher to return the underlying error message when a regex fails to compile.
- Fix a bug whereby a ClusterSpecifierPlugin would not be returned if it was not used in a vhost, even if it was used in another vhost.
* EventEngine::RunAfter migration for handshaker
* Fix build and add execution contexts to the top of the timer function
stack
* Add event_engine_ member object, remove OnTimeoutFn and self.reset()
before goes out of scope
* Run iwyu and fix_build_deps.py
* fix: more cleanup
* fix: restore unrelated files
* fix: run tools/distrib/clang_format_code.sh
* re: pass EventEngine as shared_ptr to HandshakeManager
* fix: ran tools/distrib/sanitize.sh
* fix: resolve review comment to initialize event_engine_ from the channel
args passed in DoHandshake instead of passing through constructor
* sanitize
* fix: resolve comments
* fix: one more
Mark D. Roth