go/ds/emulator/run_emulator

#!/bin/bash

function kill_emulators()
{
  kill -9 `ps aux | grep "[g]cloud\.py" | awk '{print $2}'`
  kill -9 `ps aux | grep "[c]loud_datastore_emulator" | awk '{print $2}'`
  kill -9 `ps aux | grep "[C]loudDatastore.jar" | awk '{print $2}'`
  kill -9 `ps aux | grep "[c]btemulator" | awk '{print $2}'`
}

# Starts and stops the cloud datastore emulator.
case "$1" in
  "start")
    # make sure it's not running then start the emulator.
    kill_emulators
    set -e
    gcloud beta emulators datastore start \
                --no-store-on-disk \
                --host-port=localhost:8891 \
                --project=test-project > /tmp/datastore_emulator.log 2>&1 &

    gcloud beta emulators bigtable start \
                --host-port=localhost:8892 \
                --project=test-project > /tmp/bigtable_emulator.log 2>&1 &

    gcloud beta emulators pubsub start \
                --host-port=localhost:8893 \
                --project=test-project > /tmp/pubsub_emulator.log 2>&1 &

    set -e
    sleep 5s
    cat /tmp/datastore_emulator.log
    cat /tmp/bigtable_emulator.log
    cat /tmp/pubsub_emulator.log

    echo "Cloud datastore,Bigtable and PubSub emulators started."
    ;;
  "stop")
    kill_emulators
    echo "Cloud datastore and Bigtable emulators stopped."
    ;;
  *)
    echo "Error: argument must be {start|stop}"
    exit 1
    ;;
esac