script for creating peformance workers from image

tools/gce/create_linux_kokoro_performance_worker_from_image.sh

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+#!/bin/bash
+# Copyright 2018 The gRPC Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Creates a performance worker on GCE from an image that's used for kokoro
+# perf workers.
+
+set -ex
+
+cd "$(dirname "$0")"
+
+CLOUD_PROJECT=grpc-testing
+ZONE=us-central1-b  # this zone allows 32core machines
+LATEST_PERF_WORKER_IMAGE=grpc-performance-kokoro-v2  # update if newer image exists
+
+INSTANCE_NAME="${1:-grpc-kokoro-performance-server}"
+MACHINE_TYPE="${2:-n1-standard-32}"
+
+gcloud compute instances create "$INSTANCE_NAME" \
+    --project="$CLOUD_PROJECT" \
+    --zone "$ZONE" \
+    --machine-type "$MACHINE_TYPE" \
+    --image-project "$CLOUD_PROJECT" \
+    --image "$LATEST_PERF_WORKER_IMAGE" \
+    --boot-disk-size 300 \
+    --scopes https://www.googleapis.com/auth/bigquery \
+    --tags=allow-ssh