Merge pull request #112710 from cheftako/cloud-provider

Honor the CLOUD_PROVIDER_FLAG flag.

cluster/gce/util.sh

@@ -1263,6 +1263,11 @@ EOF
   if [ -n "${DOCKER_LOG_MAX_FILE:-}" ]; then
       cat >>"$file" <<EOF
 DOCKER_LOG_MAX_FILE: $(yaml-quote "${DOCKER_LOG_MAX_FILE}")
+EOF
+  fi
+  if [ -n "${CLOUD_PROVIDER_FLAG:-}" ]; then
+    cat >>"$file" <<EOF
+CLOUD_PROVIDER_FLAG: $(yaml-quote "${CLOUD_PROVIDER_FLAG}")
 EOF
   fi
   if [ -n "${FEATURE_GATES:-}" ]; then