$ gcloud pubsub topics create $PUBSUB_NAME
$ gcloud functions deploy $FUNCTIONS_NAME \
--runtime go113 \
--trigger-topic $PUBSUB_NAME \
--region asia-northeast1 \
--set-env-vars GCP_PROJECT=$GCP_PROJECT
$ gcloud scheduler jobs create pubsub $SCHEDULER_NAME \
--time-zone "Asia/Tokyo" \
--schedule "0 21 * * 1-5" \
--topic $PUBSUB_NAME \
--message-body '{"labelKey":"is-auto-stop", "labelValue":"true"}' \
--description "Automatically stop gce instances"