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#!/bin/sh
set -eu
if [ "$#" -ne 3 ]; then
echo "Usage: 'sh ${PWD}/$0 <num-workers> <master-machine> <worker-machine>'"
exit 1
fi
NUM_WORKERS="$1"
MASTER_MACHINE="$2"
WORKER_MACHINE="$3"
if [ "$NUM_WORKERS" -lt 1 ] || [ "$NUM_WORKERS" -gt 4 ]; then
echo "<num-workers> must be 1, 2, 3, or 4"
exit 1
fi
if [ -z "$MASTER_MACHINE" ]; then
echo "Error: Master machine type cannot be empty."
exit 1
fi
if [ -z "$WORKER_MACHINE" ]; then
echo "Error: Worker machine type cannot be empty."
exit 1
fi
COMMON_PARAMS="\
--project=${PROJECT} \
--region=${REGION} \
--service-account=${SERVICE_ACCOUNT}@${PROJECT}.iam.gserviceaccount.com \
--master-boot-disk-size=240 \
--worker-boot-disk-size=240 \
--worker-machine-type=${WORKER_MACHINE} \
--master-machine-type=${MASTER_MACHINE}"
if [ "$NUM_WORKERS" -eq 1 ]; then
echo ">>>> Creating a single-node cluster..."
gcloud dataproc clusters create "${CLUSTER}" \
${COMMON_PARAMS} \
--single-node
else
echo ">>>> Creating a cluster with ${NUM_WORKERS} workers..."
gcloud dataproc clusters create "${CLUSTER}" \
${COMMON_PARAMS} \
--num-workers="${NUM_WORKERS}"
fi
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