[CI] Upgrade to Bazel 8 (#38254)

Bazel 8 was released in Dec 2024 and gRPC picks this up as gRPC is expected to support the latest Bazel version. This upgrade needs many necessary changes to deal with its breaking changes. Those changes were made in separate PRs so that this very change stays small and simple. In addition to obvious mechanical changes, a noteworthy change is made; adding `common --enable_workspace=true` to the `bazel.rc` file. This re-enables workspace functionality, which was disabled by default in Bazel 8. This is a temporary measure and will be removed once gRPC completes its migration to bzlmod later this year. All comments below are working logs that I've made and don't need to be read for the code review. Closes #38254 PiperOrigin-RevId: 718488476
2026-01-24 10:53:30 +08:00 · 2025-01-22 12:38:17 -08:00
parent 13e571a285
commit 155e8b8898
16 changed files with 27 additions and 10 deletions
--- a/.bazelversion
+++ b/.bazelversion
@@ -1 +1 @@
-7.4.1
+8.0.1
--- a/bazel/supported_versions.txt
+++ b/bazel/supported_versions.txt
@@ -1 +1,2 @@
+8.0.1
 7.4.1
--- a/bazel/update_mirror.sh
+++ b/bazel/update_mirror.sh
@@ -60,6 +60,9 @@ function upload {
 upload github.com/bazelbuild/bazel/releases/download/7.4.1/bazel-7.4.1-linux-x86_64
 upload github.com/bazelbuild/bazel/releases/download/7.4.1/bazel-7.4.1-darwin-x86_64
 upload github.com/bazelbuild/bazel/releases/download/7.4.1/bazel-7.4.1-windows-x86_64.exe
+upload github.com/bazelbuild/bazel/releases/download/8.0.1/bazel-8.0.1-linux-x86_64
+upload github.com/bazelbuild/bazel/releases/download/8.0.1/bazel-8.0.1-darwin-x86_64
+upload github.com/bazelbuild/bazel/releases/download/8.0.1/bazel-8.0.1-windows-x86_64.exe

 # Collect the github archives to mirror from grpc_deps.bzl
 grep -o '"https://github.com/[^"]*"' bazel/grpc_deps.bzl | sed 's/^"https:\/\///' | sed 's/"$//' | while read -r line ; do
--- a/doc/bazel_support.md
+++ b/doc/bazel_support.md
@@ -43,6 +43,7 @@ However individual releases may have a broader
 compatibility range. The currently supported versions are captured by the
 following list:

+- [`8.0.1`](https://github.com/bazelbuild/bazel/releases/tag/8.0.1)
 - [`7.4.1`](https://github.com/bazelbuild/bazel/releases/tag/7.4.1)

 NOTE: gRPC doesn't support bzlmod yet.
--- a/test/distrib/bazel/cpp/.bazelrc
+++ b/test/distrib/bazel/cpp/.bazelrc
@@ -3,6 +3,7 @@
 # Bazel 7 begins to enable module by default which breaks gRPC build.
 # Therefore, this option is disabled until gRPC works with bzlmod.
 common --enable_bzlmod=false
+common --enable_workspace=true

 build --cxxopt='-std=c++17'
 build --host_cxxopt='-std=c++17'
--- a/test/distrib/bazel/python/.bazelrc
+++ b/test/distrib/bazel/python/.bazelrc
@@ -3,6 +3,7 @@
 # Bazel 7 begins to enable module by default which breaks gRPC build.
 # Therefore, this option is disabled until gRPC works with bzlmod.
 common --enable_bzlmod=false
+common --enable_workspace=true

 build --cxxopt='-std=c++17'
 build --host_cxxopt='-std=c++17'
--- a/test/distrib/bazel/python_second_test_repo/.bazelrc
+++ b/test/distrib/bazel/python_second_test_repo/.bazelrc
@@ -3,6 +3,7 @@
 # Bazel 7 begins to enable module by default which breaks gRPC build.
 # Therefore, this option is disabled until gRPC works with bzlmod.
 common --enable_bzlmod=false
+common --enable_workspace=true

 build --cxxopt='-std=c++17'
 build --host_cxxopt='-std=c++17'
--- a/tools/bazel.rc
+++ b/tools/bazel.rc
@@ -4,6 +4,14 @@
 # Therefore, this option is disabled until gRPC works with bzlmod.
 common --enable_bzlmod=false

+# gRPC build will break under Bazel 8 because Bazel 8 disables workspace by default.
+# To prevent this, we've enabled workspace again until gRPC fully transitions to Bzlmod.
+common --enable_workspace=true
+
+# Bazel 8 needs this
+common --incompatible_disallow_empty_glob=false
+common --incompatible_disallow_struct_provider_syntax=false
+
 # for platform-appropriate cxxopts
 common --enable_platform_specific_config

--- a/tools/bazelify_tests/dockerimage_current_versions.bzl
+++ b/tools/bazelify_tests/dockerimage_current_versions.bzl
@@ -88,8 +88,8 @@ DOCKERIMAGE_CURRENT_VERSIONS = {
    "tools/dockerfile/interoptest/grpc_interop_ruby.current_version": "docker://us-docker.pkg.dev/grpc-testing/testing-images-public/grpc_interop_ruby@sha256:ce9539e9068b2597d5d43dc2bb7df17b84fd8192759cf7a02132b676ca6fa4ed",
    "tools/dockerfile/interoptest/lb_interop_fake_servers.current_version": "docker://us-docker.pkg.dev/grpc-testing/testing-images-public/lb_interop_fake_servers@sha256:b89a51dd9147e1293f50ee64dd719fce5929ca7894d3770a3d80dbdecb99fd52",
    "tools/dockerfile/test/android_ndk.current_version": "docker://us-docker.pkg.dev/grpc-testing/testing-images-public/android_ndk@sha256:e4fd2e0048c4ffd2a04e4a41154ee469ed61e058cb704ee95071f7a3bdad507a",
-    "tools/dockerfile/test/bazel.current_version": "docker://us-docker.pkg.dev/grpc-testing/testing-images-public/bazel@sha256:a0ca2c4f113c4d9e62e67b36d1734c0ffc3baff851cc48f23616df82484f905d",
-    "tools/dockerfile/test/bazel_arm64.current_version": "docker://us-docker.pkg.dev/grpc-testing/testing-images-public/bazel_arm64@sha256:2728d010d87cb1845d002efbc3d08dadc283e8d0b7e0b582c2623960af61d2c5",
+    "tools/dockerfile/test/bazel.current_version": "docker://us-docker.pkg.dev/grpc-testing/testing-images-public/bazel@sha256:2677aecec57bb89bc0c7a409151507187343ba8272bdafc3e42d451f5841bd57",
+    "tools/dockerfile/test/bazel_arm64.current_version": "docker://us-docker.pkg.dev/grpc-testing/testing-images-public/bazel_arm64@sha256:14157b9987b3da1a29cab71124f566c04342490f3764f52c64cb65c0158223ad",
    "tools/dockerfile/test/csharp_debian11_arm64.current_version": "docker://us-docker.pkg.dev/grpc-testing/testing-images-public/csharp_debian11_arm64@sha256:4d4bc5f15e03f3d3d8fd889670ecde2c66a2e4d2dd9db80733c05c1d90c8a248",
    "tools/dockerfile/test/csharp_debian11_x64.current_version": "docker://us-docker.pkg.dev/grpc-testing/testing-images-public/csharp_debian11_x64@sha256:0763d919b17b4cfe5b65aff3bf911c04e9e4d46d11649858742033facd9f534f",
    "tools/dockerfile/test/cxx_alpine_x64.current_version": "docker://us-docker.pkg.dev/grpc-testing/testing-images-public/cxx_alpine_x64@sha256:f49643b001fde1559e1607fa2735230c0a2acf97fb854e3bd56fb9e1c419883d",
@@ -112,5 +112,5 @@ DOCKERIMAGE_CURRENT_VERSIONS = {
    "tools/dockerfile/test/rbe_ubuntu2004.current_version": "docker://us-docker.pkg.dev/grpc-testing/testing-images-public/rbe_ubuntu2004@sha256:b3eb1a17b7b091e3c5648a803076b2c40601242ff91c04d55997af6641305f68",
    "tools/dockerfile/test/ruby_debian11_arm64.current_version": "docker://us-docker.pkg.dev/grpc-testing/testing-images-public/ruby_debian11_arm64@sha256:d2e79919b2e2d4cc36a29682ecb5170641df4fb506cfb453978ffdeb8a841bd9",
    "tools/dockerfile/test/ruby_debian11_x64.current_version": "docker://us-docker.pkg.dev/grpc-testing/testing-images-public/ruby_debian11_x64@sha256:6e8b4696ba0661f11a31ed0992a94d2efcd889a018f57160f0e2fb62963f3593",
-    "tools/dockerfile/test/sanity.current_version": "docker://us-docker.pkg.dev/grpc-testing/testing-images-public/sanity@sha256:8b8e0b83725dfc5f81c901b3a737872410ee04fc1cb8b9ec5b2e4a5670fbf23c",
+    "tools/dockerfile/test/sanity.current_version": "docker://us-docker.pkg.dev/grpc-testing/testing-images-public/sanity@sha256:998a0ec246abde100bd0f295cf2d1945e381a7f53d3309f94dcadf73295fdeb9",
 }
--- a/tools/bazelify_tests/test/supported_bazel_versions.bzl
+++ b/tools/bazelify_tests/test/supported_bazel_versions.bzl
@@ -17,5 +17,6 @@ This file is generated from the supported_bazel_versions.bzl.template
 """

 SUPPORTED_BAZEL_VERSIONS = [
+    "8.0.1",
    "7.4.1",
 ]
--- a/tools/dockerfile/test/bazel.current_version
+++ b/tools/dockerfile/test/bazel.current_version
@@ -1 +1 @@
-us-docker.pkg.dev/grpc-testing/testing-images-public/bazel:f807574dd98dfb4a31da1104bfcb7de444b98797@sha256:a0ca2c4f113c4d9e62e67b36d1734c0ffc3baff851cc48f23616df82484f905d
+us-docker.pkg.dev/grpc-testing/testing-images-public/bazel:7e7df73e8973de9ef2c75d2c633e7c43b581c1cd@sha256:2677aecec57bb89bc0c7a409151507187343ba8272bdafc3e42d451f5841bd57
--- a/tools/dockerfile/test/bazel/Dockerfile
+++ b/tools/dockerfile/test/bazel/Dockerfile
@@ -38,7 +38,7 @@ RUN apt-get update && apt-get -y install \
 # Bazel installation

 # Must be in sync with tools/bazel
-ENV BAZEL_VERSION 7.4.1
+ENV BAZEL_VERSION 8.0.1

 # The correct bazel version is already preinstalled, no need to use //tools/bazel wrapper.
 ENV DISABLE_BAZEL_WRAPPER 1
--- a/tools/dockerfile/test/bazel_arm64.current_version
+++ b/tools/dockerfile/test/bazel_arm64.current_version
@@ -1 +1 @@
-us-docker.pkg.dev/grpc-testing/testing-images-public/bazel_arm64:6abcf8ebfbfdde00a629dcd6e0743ed0de578387@sha256:2728d010d87cb1845d002efbc3d08dadc283e8d0b7e0b582c2623960af61d2c5
+us-docker.pkg.dev/grpc-testing/testing-images-public/bazel_arm64:90f06fd599c2136da3e6655b07b75124e26e18b5@sha256:14157b9987b3da1a29cab71124f566c04342490f3764f52c64cb65c0158223ad
--- a/tools/dockerfile/test/bazel_arm64/Dockerfile
+++ b/tools/dockerfile/test/bazel_arm64/Dockerfile
@@ -97,7 +97,7 @@ RUN apt-get update && apt-get -y install libc++-dev clang && apt-get clean
 # Bazel installation

 # Must be in sync with tools/bazel
-ENV BAZEL_VERSION 7.4.1
+ENV BAZEL_VERSION 8.0.1

 # The correct bazel version is already preinstalled, no need to use //tools/bazel wrapper.
 ENV DISABLE_BAZEL_WRAPPER 1
--- a/tools/dockerfile/test/sanity.current_version
+++ b/tools/dockerfile/test/sanity.current_version
@@ -1 +1 @@
-us-docker.pkg.dev/grpc-testing/testing-images-public/sanity:031ef1568c1e7c3347429dbcb3ea5534812515c4@sha256:8b8e0b83725dfc5f81c901b3a737872410ee04fc1cb8b9ec5b2e4a5670fbf23c
+us-docker.pkg.dev/grpc-testing/testing-images-public/sanity:5c970669936e0ad2e3ef89216acf3987c746f3b1@sha256:998a0ec246abde100bd0f295cf2d1945e381a7f53d3309f94dcadf73295fdeb9
--- a/tools/dockerfile/test/sanity/Dockerfile
+++ b/tools/dockerfile/test/sanity/Dockerfile
@@ -108,7 +108,7 @@ RUN apt-get update && apt-get install -y jq git && apt-get clean
 # Bazel installation

 # Must be in sync with tools/bazel
-ENV BAZEL_VERSION 7.4.1
+ENV BAZEL_VERSION 8.0.1

 # The correct bazel version is already preinstalled, no need to use //tools/bazel wrapper.
 ENV DISABLE_BAZEL_WRAPPER 1
@@ -1 +1 @@
 .4.1
 .0.1