The bazel build configuration in this repo works as is (it better!)...however it required several workarounds due to the way bazel's rules_go works with generated google api protos.
In this repo, the go_repository{} requires the following overrides with build_file_proto_mode = "disable_global":
load("@bazel_gazelle//:deps.bzl", "go_repository")
def go_repositories():
go_repository(
name = "com_github_googleapis_gax_go_v2",
importpath = "github.com/googleapis/gax-go/v2",
build_file_proto_mode = "disable_global",
sum = "h1:A+gCJKdRfqXkr+BIRGtZLibNXf0m1f9E4HG56etFpas=",
version = "v2.12.0",
)
go_repository(
name = "org_golang_google_appengine",
importpath = "google.golang.org/appengine",
build_file_proto_mode = "disable_global",
sum = "h1:FZR1q0exgwxzPzp/aF+VccGrSfxfPpkBqjIIEq3ru6c=",
version = "v1.6.7",
)(reference: bazelbuild/rules_go#3467)