Configuration from https://github.com/robuye/pgbench-docker with the following parameters:
DOCKER_IMAGE=postgres:11
PGBENCH_SCALE=10 # scale factor (keep it higher or equal to concurrent clients)
PGBENCH_CLIENTS=10 # clients or concurrent db sessions
PGBENCH_RATE=1000000 # 1M rate limit, number of transactions per second
PGBENCH_THREADS=8 # number of threads to run to manage connections