Merge branch 'dualstack_wrr' into dualstack5_from3

.bazelversion

@@ -0,0 +1 @@
+6.3.2

.clang-format

@@ -46,4 +46,8 @@ Language: ObjC
 BasedOnStyle: Google
 ColumnLimit: 100
 ObjCBlockIndentWidth: 2
+---
+Language: Proto
+BasedOnStyle: Google
+ColumnLimit: 100
 ...

.dockerignore

@@ -0,0 +1,6 @@
+bazel-bin
+bazel-grpc
+bazel-out
+build
+.cache
+.git

.gitattributes

@@ -36,3 +36,4 @@ src/core/debug/stats_data.cc linguist-generated=true
 src/core/experiments/experiments.h linguist-generated=true
 src/core/experiments/experiments.cc linguist-generated=true
 bazel/experiments.bzl linguist-generated=true
+test/cpp/microbenchmarks/huffman_geometries/** linguist-generated=true

.github/CODEOWNERS

@@ -5,11 +5,7 @@
 /bazel/** @jtattermusch @veblush @gnossen
 /cmake/** @jtattermusch @apolcyn
 /src/core/ext/filters/client_channel/** @markdroth
-/src/core/ext/transport/chttp2/transport/** @ctiller
 /src/core/ext/xds/** @markdroth
 /src/core/lib/resolver/** @markdroth
 /src/core/lib/service_config/** @markdroth
-/src/core/lib/surface/** @ctiller
-/src/core/lib/transport/** @ctiller
-/test/core/transport/** @ctiller
 /tools/dockerfile/** @jtattermusch @apolcyn

.github/workflows/psm-interop.yaml

@@ -0,0 +1,73 @@
+name: PSM Interop
+
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+
+permissions:
+  contents: read
+
+jobs:
+  unittest:
+    # By default, only version is printed out in parens, e.g. "unittest (3.10)"
+    # This changes it to "unittest (python3.10)"
+    name: "unittest (python${{ matrix.python_version }})"
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python_version: ["3.9", "3.10", "3.11"]
+      fail-fast: false
+    permissions:
+      pull-requests: read  # Used by paths-filter to read the diff.
+    defaults:
+      run:
+        working-directory: 'tools/run_tests/xds_k8s_test_driver'
+
+    steps:
+      - uses: actions/checkout@v3
+
+      # To add this job to required GitHub checks, it's not enough to use
+      # the on.pull_request.paths filter. For required checks, the job needs to
+      # return the success status, and not be skipped.
+      # Using paths-filter action, we skip the setup/test steps when psm interop
+      # files are unchanged, and the job returns success.
+      - uses: dorny/paths-filter@v2
+        id: paths_filter
+        with:
+          filters:  |
+            psm_interop_src:
+              - 'tools/run_tests/xds_k8s_test_driver/**'
+              - 'src/proto/grpc/testing/empty.proto'
+              - 'src/proto/grpc/testing/messages.proto'
+              - 'src/proto/grpc/testing/test.proto'
+
+      - uses: actions/setup-python@v4
+        if: ${{ steps.paths_filter.outputs.psm_interop_src == 'true' }}
+        with:
+          python-version: "${{ matrix.python_version }}"
+          cache: 'pip'
+          cache-dependency-path: 'tools/run_tests/xds_k8s_test_driver/requirements.lock'
+
+      - name: "Install requirements"
+        if: ${{ steps.paths_filter.outputs.psm_interop_src == 'true' }}
+        run: |
+          pip list
+          pip install --upgrade pip setuptools
+          pip list
+          pip install -r requirements.lock
+          pip list
+
+      - name: "Generate protos"
+        if: ${{ steps.paths_filter.outputs.psm_interop_src == 'true' }}
+        run: >
+          python -m grpc_tools.protoc --proto_path=../../../
+          --python_out=. --grpc_python_out=.
+          src/proto/grpc/testing/empty.proto
+          src/proto/grpc/testing/messages.proto
+          src/proto/grpc/testing/test.proto
+
+      - name: "Run unit tests"
+        if: ${{ steps.paths_filter.outputs.psm_interop_src == 'true' }}
+        run: python -m tests.unit

.gitignore

@@ -55,6 +55,7 @@ coverage
 
 # vim temp files
 .*.swp
+.*.swo
 
 # Makefile's cache
 cache.mk

.gitmodules

@@ -22,9 +22,6 @@
 [submodule "third_party/googletest"]
 	path = third_party/googletest
 	url = https://github.com/google/googletest.git
-[submodule "third_party/libuv"]
-	path = third_party/libuv
-	url = https://github.com/libuv/libuv.git
 [submodule "third_party/opencensus-proto"]
 	path = third_party/opencensus-proto
 	url = https://github.com/census-instrumentation/opencensus-proto.git
@@ -50,3 +47,6 @@
 	# generated file that makes Git consider the submodule dirty. This
 	# state can be ignored for day-to-day development on gRPC.
 	ignore = dirty
+[submodule "third_party/upb"]
+	path = third_party/upb
+	url = https://github.com/protocolbuffers/upb.git