Change the build_binaries path to use modules

This makes "new" and "old" setup_env functions. In subsequent commits,
all callers of the "old" form will be fixed, and the "new" will be
renamed back.

The old and new functions diff:

```diff
--- /tmp/a	2023-12-14 09:02:57.804092696 -0800
+++ /tmp/b	2023-12-14 09:03:09.679999585 -0800
@@ -1,4 +1,4 @@
-kube::golang::old::setup_env() {
+kube::golang:🆕:setup_env() {
   kube::golang::verify_go_version

   # Set up GOPATH.  We have tools which depend on being in a GOPATH (see
@@ -7,9 +7,9 @@
   # Even in module mode, we need to set GOPATH for `go build` and `go install`
   # to work.  We build various tools (usually via `go install`) from a lot of
   # scripts.
-  #   * We can't set GOBIN because that does not work on cross-compiles.
-  #   * We could use `go build -o <something>`, but it's subtle when it comes
-  #     to cross-compiles and whether the <something> is a file or a directory,
+  #   * We can't just set GOBIN because that does not work on cross-compiles.
+  #   * We could always use `go build -o <something>`, but it's subtle wrt
+  #     cross-compiles and whether the <something> is a file or a directory,
   #     and EVERY caller has to get it *just* right.
   #   * We could leave GOPATH alone and let `go install` write binaries
   #     wherever the user's GOPATH says (or doesn't say).
@@ -20,16 +20,6 @@
   #
   # Eventually, when we no longer rely on run-in-gopath.sh we may be able to
   # simplify this some.
-  local go_pkg_dir="${KUBE_GOPATH}/src/${KUBE_GO_PACKAGE}"
-  local go_pkg_basedir
-  go_pkg_basedir=$(dirname "${go_pkg_dir}")
-
-  mkdir -p "${go_pkg_basedir}"
-
-  # TODO: This symlink should be relative.
-  if [[ ! -e "${go_pkg_dir}" || "$(readlink "${go_pkg_dir}")" != "${KUBE_ROOT}" ]]; then
-    ln -snf "${KUBE_ROOT}" "${go_pkg_dir}"
-  fi
   export GOPATH="${KUBE_GOPATH}"

   # If these are not set, set them now.  This ensures that any subsequent
@@ -40,24 +30,10 @@
   # Make sure our own Go binaries are in PATH.
   export PATH="${KUBE_GOPATH}/bin:${PATH}"

-  # Change directories so that we are within the GOPATH.  Some tools get really
-  # upset if this is not true.  We use a whole fake GOPATH here to collect the
-  # resultant binaries.
-  local subdir
-  subdir=$(kube::realpath . | sed "s|${KUBE_ROOT}||")
-  cd "${KUBE_GOPATH}/src/${KUBE_GO_PACKAGE}/${subdir}" || return 1
-
-  # Set GOROOT so binaries that parse code can work properly.
-  GOROOT=$(go env GOROOT)
-  export GOROOT
-
   # Unset GOBIN in case it already exists in the current session.
   # Cross-compiles will not work with it set.
   unset GOBIN

-  # This seems to matter to some tools
-  export GO15VENDOREXPERIMENT=1
-
-  # Disable workspaces
-  export GOWORK=off
+  # Explicitly turn on modules.
+  export GO111MODULE=on
 }
```

Result: `make` works for k/k:

```
$ make kubectl
+++ [1211 11:07:31] Building go targets for linux/amd64
    k8s.io/kubernetes/cmd/kubectl (static)

$ make WHAT=./cmd/kubectl/
+++ [1211 11:08:19] Building go targets for linux/amd64
    k8s.io/kubernetes/./cmd/kubectl/ (non-static)

$ make WHAT=k8s.io/kubernetes/cmd/kubectl
+++ [1211 11:08:52] Building go targets for linux/amd64
    k8s.io/kubernetes/cmd/kubectl (static)
```

Result: `make` works for staging by package:

```
$ make WHAT=k8s.io/api
+++ [1211 11:11:37] Building go targets for linux/amd64
    k8s.io/api (non-static)
```

Result: `make` fails for staging by path:

```
$ make WHAT=./staging/src/k8s.io/api
+++ [1211 11:12:44] Building go targets for linux/amd64
    k8s.io/kubernetes/./staging/src/k8s.io/api (non-static)
cannot find module providing package k8s.io/kubernetes/staging/src/k8s.io/api: import lookup disabled by -mod=vendor
	(Go version in go.work is at least 1.14 and vendor directory exists.)
!!! [1211 11:12:44] Call tree:
!!! [1211 11:12:44]  1: /home/thockin/src/kubernetes/hack/lib/golang.sh:850 kube::golang::build_some_binaries(...)
!!! [1211 11:12:44]  2: /home/thockin/src/kubernetes/hack/lib/golang.sh:1012 kube::golang::build_binaries_for_platform(...)
!!! [1211 11:12:44]  3: hack/make-rules/build.sh:27 kube::golang::build_binaries(...)
!!! [1211 11:12:44] Call tree:
!!! [1211 11:12:44]  1: hack/make-rules/build.sh:27 kube::golang::build_binaries(...)
!!! [1211 11:12:44] Call tree:
!!! [1211 11:12:44]  1: hack/make-rules/build.sh:27 kube::golang::build_binaries(...)
make: *** [Makefile:96: all] Error 1
```

Result: `make test` fails:

```
$ make test WHAT=./cmd/kubectl
+++ [1211 11:13:38] Set GOMAXPROCS automatically to 6
+++ [1211 11:13:38] Running tests without code coverage and with -race
cmd/kubectl/kubectl.go:25:2: cannot find package "k8s.io/client-go/plugin/pkg/client/auth" in any of:
	/home/thockin/src/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/client-go/plugin/pkg/client/auth (vendor tree)
	/home/thockin/sdk/gotip/src/k8s.io/client-go/plugin/pkg/client/auth (from $GOROOT)
	/home/thockin/src/kubernetes/_output/local/go/src/k8s.io/client-go/plugin/pkg/client/auth (from $GOPATH)
cmd/kubectl/kubectl.go:20:2: cannot find package "k8s.io/component-base/cli" in any of:
	/home/thockin/src/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/component-base/cli (vendor tree)
	/home/thockin/sdk/gotip/src/k8s.io/component-base/cli (from $GOROOT)
	/home/thockin/src/kubernetes/_output/local/go/src/k8s.io/component-base/cli (from $GOPATH)
cmd/kubectl/kubectl.go:21:2: cannot find package "k8s.io/kubectl/pkg/cmd" in any of:
	/home/thockin/src/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/kubectl/pkg/cmd (vendor tree)
	/home/thockin/sdk/gotip/src/k8s.io/kubectl/pkg/cmd (from $GOROOT)
	/home/thockin/src/kubernetes/_output/local/go/src/k8s.io/kubectl/pkg/cmd (from $GOPATH)
cmd/kubectl/kubectl.go:22:2: cannot find package "k8s.io/kubectl/pkg/cmd/util" in any of:
	/home/thockin/src/kubernetes/_output/local/go/src/k8s.io/kubernetes/vendor/k8s.io/kubectl/pkg/cmd/util (vendor tree)
	/home/thockin/sdk/gotip/src/k8s.io/kubectl/pkg/cmd/util (from $GOROOT)
	/home/thockin/src/kubernetes/_output/local/go/src/k8s.io/kubectl/pkg/cmd/util (from $GOPATH)
make: *** [Makefile:191: test] Error 1
```

hack/lib/golang.sh

@@ -446,20 +446,6 @@ kube::golang::set_platform_envs() {
   fi
 }
 
-# Create the GOPATH tree under $KUBE_OUTPUT
-kube::golang::create_gopath_tree() {
-  local go_pkg_dir="${KUBE_GOPATH}/src/${KUBE_GO_PACKAGE}"
-  local go_pkg_basedir
-  go_pkg_basedir=$(dirname "${go_pkg_dir}")
-
-  mkdir -p "${go_pkg_basedir}"
-
-  # TODO: This symlink should be relative.
-  if [[ ! -e "${go_pkg_dir}" || "$(readlink "${go_pkg_dir}")" != "${KUBE_ROOT}" ]]; then
-    ln -snf "${KUBE_ROOT}" "${go_pkg_dir}"
-  fi
-}
-
 # Ensure the go tool exists and is a viable version.
 # Inputs:
 #   env-var GO_VERSION is the desired go version to use, downloading it if needed (defaults to content of .go-version)
@@ -508,7 +494,7 @@ EOF
   fi
 }
 
-# kube::golang::setup_env will check that the `go` commands is available in
+# kube::golang::old::setup_env will check that the `go` commands is available in
 # ${PATH}. It will also check that the Go version is good enough for the
 # Kubernetes build.
 #
@@ -517,7 +503,8 @@ EOF
 #   env-var GOBIN is unset (we want binaries in a predictable place)
 #   env-var GO15VENDOREXPERIMENT=1
 #   current directory is within GOPATH
-kube::golang::setup_env() {
+#FIXME: remove this when all callers are converted
+kube::golang::old::setup_env() {
   kube::golang::verify_go_version
 
   # Set up GOPATH.  We have tools which depend on being in a GOPATH (see
@@ -539,7 +526,16 @@ kube::golang::setup_env() {
   #
   # Eventually, when we no longer rely on run-in-gopath.sh we may be able to
   # simplify this some.
-  kube::golang::create_gopath_tree
+  local go_pkg_dir="${KUBE_GOPATH}/src/${KUBE_GO_PACKAGE}"
+  local go_pkg_basedir
+  go_pkg_basedir=$(dirname "${go_pkg_dir}")
+
+  mkdir -p "${go_pkg_basedir}"
+
+  # TODO: This symlink should be relative.
+  if [[ ! -e "${go_pkg_dir}" || "$(readlink "${go_pkg_dir}")" != "${KUBE_ROOT}" ]]; then
+    ln -snf "${KUBE_ROOT}" "${go_pkg_dir}"
+  fi
   export GOPATH="${KUBE_GOPATH}"
 
   # If these are not set, set them now.  This ensures that any subsequent
@@ -567,6 +563,58 @@ kube::golang::setup_env() {
 
   # This seems to matter to some tools
   export GO15VENDOREXPERIMENT=1
+
+  # Disable workspaces
+  export GOWORK=off
+}
+
+# kube::golang::new::setup_env will check that the `go` commands is available in
+# ${PATH}. It will also check that the Go version is good enough for the
+# Kubernetes build.
+#
+# Outputs:
+#   env-var GOPATH points to our local output dir
+#   env-var GOBIN is unset (we want binaries in a predictable place)
+#   env-var PATH includes the local GOPATH
+#FIXME: rename this when all callers are converted
+kube::golang::new::setup_env() {
+  kube::golang::verify_go_version
+
+  # Set up GOPATH.  We have tools which depend on being in a GOPATH (see
+  # hack/run-in-gopath.sh).
+  #
+  # Even in module mode, we need to set GOPATH for `go build` and `go install`
+  # to work.  We build various tools (usually via `go install`) from a lot of
+  # scripts.
+  #   * We can't just set GOBIN because that does not work on cross-compiles.
+  #   * We could always use `go build -o <something>`, but it's subtle wrt
+  #     cross-compiles and whether the <something> is a file or a directory,
+  #     and EVERY caller has to get it *just* right.
+  #   * We could leave GOPATH alone and let `go install` write binaries
+  #     wherever the user's GOPATH says (or doesn't say).
+  #
+  # Instead we set it to a phony local path and process the results ourselves.
+  # In particular, GOPATH[0]/bin will be used for `go install`, with
+  # cross-compiles adding an extra directory under that.
+  #
+  # Eventually, when we no longer rely on run-in-gopath.sh we may be able to
+  # simplify this some.
+  export GOPATH="${KUBE_GOPATH}"
+
+  # If these are not set, set them now.  This ensures that any subsequent
+  # scripts we run (which may call this function again) use the same values.
+  export GOCACHE="${GOCACHE:-"${KUBE_GOPATH}/cache/build"}"
+  export GOMODCACHE="${GOMODCACHE:-"${KUBE_GOPATH}/cache/mod"}"
+
+  # Make sure our own Go binaries are in PATH.
+  export PATH="${KUBE_GOPATH}/bin:${PATH}"
+
+  # Unset GOBIN in case it already exists in the current session.
+  # Cross-compiles will not work with it set.
+  unset GOBIN
+
+  # Explicitly turn on modules.
+  export GO111MODULE=on
 }
 
 kube::golang::setup_gomaxprocs() {
@@ -737,13 +785,13 @@ kube::golang::build_some_binaries() {
     done
     if [[ "${#uncovered[@]}" != 0 ]]; then
       V=2 kube::log::info "Building ${uncovered[*]} without coverage..."
-      GO111MODULE=on GOPROXY=off go install "${build_args[@]}" "${uncovered[@]}"
+      GOPROXY=off go install "${build_args[@]}" "${uncovered[@]}"
     else
       V=2 kube::log::info "Nothing to build without coverage."
     fi
   else
     V=2 kube::log::info "Coverage is disabled."
-    GO111MODULE=on GOPROXY=off go install "${build_args[@]}" "$@"
+    GOPROXY=off go install "${build_args[@]}" "$@"
   fi
 }
 
@@ -853,7 +901,7 @@ kube::golang::build_binaries() {
   # Create a sub-shell so that we don't pollute the outer environment
   (
     # Check for `go` binary and set ${GOPATH}.
-    kube::golang::setup_env
+    kube::golang::new::setup_env
     V=2 kube::log::info "Go version: $(GOFLAGS='' go version)"
 
     local host_platform

hack/lib/protoc.sh

@@ -31,7 +31,7 @@ PROTOC_VERSION=23.4
 # and formats it correctly
 # $1: Full path to the directory where the api.proto file is
 function kube::protoc::generate_proto() {
-  kube::golang::setup_env
+  kube::golang::old::setup_env
   GO111MODULE=on GOPROXY=off go install k8s.io/code-generator/cmd/go-to-protobuf/protoc-gen-gogo
 
   kube::protoc::check_protoc

hack/lib/verify-generated.sh

@@ -35,7 +35,7 @@ kube::verify::generated() {
     kube::util::ensure_clean_working_dir
 
     # This sets up the environment, like GOCACHE, which keeps the worktree cleaner.
-    kube::golang::setup_env
+    kube::golang::old::setup_env
 
     _tmpdir="$(kube::realpath "$(mktemp -d -t "verify-generated-$(basename "$1").XXXXXX")")"
     git worktree add -f -q "${_tmpdir}" HEAD

hack/make-rules/test-e2e-node.sh

@@ -17,7 +17,7 @@
 KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/../..
 source "${KUBE_ROOT}/hack/lib/init.sh"
 
-kube::golang::setup_env
+kube::golang::old::setup_env
 kube::golang::setup_gomaxprocs
 
 # start the cache mutation detector by default so that cache mutators will be found

hack/make-rules/test.sh

@@ -21,7 +21,7 @@ set -o pipefail
 KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/../..
 source "${KUBE_ROOT}/hack/lib/init.sh"
 
-kube::golang::setup_env
+kube::golang::old::setup_env
 kube::golang::setup_gomaxprocs
 
 # start the cache mutation detector by default so that cache mutators will be found

hack/run-in-gopath.sh

@@ -28,7 +28,7 @@ KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 source "${KUBE_ROOT}/hack/lib/init.sh"
 
 # This sets up a clean GOPATH and makes sure we are currently in it.
-kube::golang::setup_env
+kube::golang::old::setup_env
 
 # Run the user-provided command.
 "${@}"

hack/update-codegen.sh

@@ -27,7 +27,7 @@ source "${KUBE_ROOT}/hack/lib/init.sh"
 source "${KUBE_ROOT}/hack/lib/protoc.sh"
 cd "${KUBE_ROOT}"
 
-kube::golang::setup_env
+kube::golang::old::setup_env
 
 DBG_CODEGEN="${DBG_CODEGEN:-0}"
 GENERATED_FILE_PREFIX="${GENERATED_FILE_PREFIX:-zz_generated.}"

hack/update-generated-api-compatibility-data.sh

@@ -21,7 +21,7 @@ set -o pipefail
 KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 source "${KUBE_ROOT}/hack/lib/init.sh"
 
-kube::golang::setup_env
+kube::golang::old::setup_env
 
 # run in module mode to match test command in readme.md
 export GO111MODULE=on

hack/update-generated-docs.sh

@@ -25,7 +25,7 @@ set -o pipefail
 KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 source "${KUBE_ROOT}/hack/lib/init.sh"
 
-kube::golang::setup_env
+kube::golang::old::setup_env
 
 BINS=(
 	cmd/gendocs

hack/update-generated-protobuf-dockerized.sh

@@ -28,7 +28,7 @@ source "${KUBE_ROOT}/hack/lib/init.sh"
 source "${KUBE_ROOT}/hack/lib/protoc.sh"
 
 kube::protoc::check_protoc
-kube::golang::setup_env
+kube::golang::old::setup_env
 
 GO111MODULE=on GOPROXY=off go install k8s.io/code-generator/cmd/go-to-protobuf
 GO111MODULE=on GOPROXY=off go install k8s.io/code-generator/cmd/go-to-protobuf/protoc-gen-gogo

hack/update-go-workspace.sh

@@ -28,7 +28,7 @@ KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 source "${KUBE_ROOT}/hack/lib/init.sh"
 
 # This sets up the environment, like GOCACHE, which keeps the worktree cleaner.
-kube::golang::setup_env
+kube::golang::new::setup_env
 export GO111MODULE=on
 
 cd "${KUBE_ROOT}"

hack/update-golangci-lint-config.sh

@@ -26,7 +26,7 @@ KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 source "${KUBE_ROOT}/hack/lib/init.sh"
 
 # This sets up the environment, like GOCACHE, which keeps the worktree cleaner.
-kube::golang::setup_env
+kube::golang::old::setup_env
 
 # Remove all files, some of them might be obsolete.
 rm -f hack/golangci*.yaml

hack/update-mocks.sh

@@ -27,7 +27,7 @@ source "${KUBE_ROOT}/hack/lib/init.sh"
 export GO111MODULE=on
 
 kube::golang::verify_go_version
-kube::golang::setup_env
+kube::golang::old::setup_env
 
 echo 'installing mockgen'
 pushd "${KUBE_ROOT}/hack/tools" >/dev/null

hack/update-openapi-spec.sh

@@ -27,7 +27,7 @@ OPENAPI_ROOT_DIR="${KUBE_ROOT}/api/openapi-spec"
 source "${KUBE_ROOT}/hack/lib/init.sh"
 
 kube::util::require-jq
-kube::golang::setup_env
+kube::golang::old::setup_env
 kube::etcd::install
 
 make -C "${KUBE_ROOT}" WHAT=cmd/kube-apiserver

hack/update-vendor.sh

@@ -25,7 +25,7 @@ KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 source "${KUBE_ROOT}/hack/lib/init.sh"
 
 # Get all the default Go environment.
-kube::golang::setup_env
+kube::golang::new::setup_env
 kube::golang::verify_go_version
 
 # Turn off workspaces until we are ready for them later

hack/update-yamlfmt.sh

@@ -21,7 +21,7 @@ set -o pipefail
 KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 source "${KUBE_ROOT}/hack/lib/init.sh"
 
-kube::golang::setup_env
+kube::golang::old::setup_env
 
 cd "${KUBE_ROOT}"
 

hack/verify-cli-conventions.sh

@@ -25,7 +25,7 @@ set -o pipefail
 KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 source "${KUBE_ROOT}/hack/lib/init.sh"
 
-kube::golang::setup_env
+kube::golang::old::setup_env
 
 BINS=(
 	cmd/clicheck

hack/verify-description.sh

@@ -26,7 +26,7 @@ KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 source "${KUBE_ROOT}/hack/lib/init.sh"
 source "${KUBE_ROOT}/hack/lib/util.sh"
 
-kube::golang::setup_env
+kube::golang::old::setup_env
 
 make -C "${KUBE_ROOT}" WHAT=cmd/genswaggertypedocs
 

hack/verify-fieldname-docs.sh

@@ -26,7 +26,7 @@ KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 source "${KUBE_ROOT}/hack/lib/init.sh"
 source "${KUBE_ROOT}/hack/lib/util.sh"
 
-kube::golang::setup_env
+kube::golang::old::setup_env
 
 make -C "${KUBE_ROOT}" WHAT=cmd/fieldnamedocscheck
 

hack/verify-generated-docs.sh

@@ -25,7 +25,7 @@ set -o pipefail
 KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 source "${KUBE_ROOT}/hack/lib/init.sh"
 
-kube::golang::setup_env
+kube::golang::old::setup_env
 
 BINS=(
 	cmd/gendocs

hack/verify-gofmt.sh

@@ -30,7 +30,7 @@ source "${KUBE_ROOT}/hack/lib/init.sh"
 
 cd "${KUBE_ROOT}"
 
-kube::golang::setup_env
+kube::golang::old::setup_env
 
 find_files() {
   find . -not \( \

hack/verify-govulncheck.sh

@@ -25,7 +25,7 @@ source "${KUBE_ROOT}/hack/lib/util.sh"
 kube::util::ensure_clean_working_dir
 
 # This sets up the environment, like GOCACHE, which keeps the worktree cleaner.
-kube::golang::setup_env
+kube::golang::old::setup_env
 # Opt into using go modules
 export GO111MODULE=on
 

hack/verify-import-boss.sh

@@ -26,7 +26,7 @@ set -o pipefail
 KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 source "${KUBE_ROOT}/hack/lib/init.sh"
 
-kube::golang::setup_env
+kube::golang::old::setup_env
 
 GO111MODULE=on GOPROXY=off go install k8s.io/code-generator/cmd/import-boss
 

hack/verify-imports.sh

@@ -26,7 +26,7 @@ set -o pipefail
 KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 source "${KUBE_ROOT}/hack/lib/init.sh"
 
-kube::golang::setup_env
+kube::golang::old::setup_env
 
 make -C "${KUBE_ROOT}" WHAT=cmd/importverifier
 

hack/verify-licenses.sh

@@ -27,7 +27,7 @@ source "${KUBE_ROOT}/hack/lib/init.sh"
 source "${KUBE_ROOT}/hack/lib/util.sh"
 
 # This sets up the environment, like GOCACHE, which keeps the worktree cleaner.
-kube::golang::setup_env
+kube::golang::old::setup_env
 kube::util::ensure-temp-dir
 
 ARTIFACTS="${ARTIFACTS:-${PWD}/_artifacts}"

hack/verify-no-vendor-cycles.sh

@@ -28,7 +28,7 @@ source "${KUBE_ROOT}/hack/lib/init.sh"
 export GO111MODULE=on
 
 kube::golang::verify_go_version
-kube::golang::setup_env
+kube::golang::old::setup_env
 
 staging_repos=()
 kube::util::read-array staging_repos < <(kube::util::list_staging_repos)

hack/verify-openapi-spec.sh

@@ -26,7 +26,7 @@ set -o pipefail
 KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 source "${KUBE_ROOT}/hack/lib/init.sh"
 
-kube::golang::setup_env
+kube::golang::old::setup_env
 kube::etcd::install
 
 make -C "${KUBE_ROOT}" WHAT=cmd/kube-apiserver

test/instrumentation/stability-utils.sh

@@ -26,7 +26,7 @@ stability_check_setup() {
   kube::golang::verify_go_version
   kube::util::ensure-temp-dir
   cd "${KUBE_ROOT}"
-  kube::golang::setup_env
+  kube::golang::old::setup_env
 }
 
 function find_files_to_check() {

test/integration/ipamperf/test-performance.sh

@@ -70,7 +70,7 @@ done
 KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/../../../
 source "${KUBE_ROOT}/hack/lib/init.sh"
 
-kube::golang::setup_env
+kube::golang::old::setup_env
 
 DIR_BASENAME=$(dirname "${BASH_SOURCE[0]}")
 pushd "${DIR_BASENAME}"