#!/bin/bash

# Get the maximum allowable number of open files per process on the host
nr_open=`sysctl fs.nr_open | cut -d' ' -f3`

# Ensure it's large enough; for 2^20 clients, the client simulator
# process will need two file descriptors per client (one socket to
# its ingestion server and one to its storage server), plus a handful
# that don't depend on the number of clients (logfiles, etc.)
needed_nr_open=$(((1<<21) + 10))

if [ $nr_open -lt $needed_nr_open ]; then
    echo "sysctl fs.nr_open is too low: currently $nr_open; needed $needed_nr_open" >&2
    exit 1
fi

# The SYS_NICE capability allows you to use numactl to pin processes to
# NUMA nodes and/or individual cores

docker run -d --cap-add SYS_NICE --rm --device /dev/sgx_enclave \
    --device /dev/sgx_provision --name ${TEEMS_DOCKER_PREFIX}teems \
    --ulimit nofile=${needed_nr_open}:${needed_nr_open} \
    -h ${TEEMS_DOCKER_PREFIX}teems -t ${TEEMS_DOCKER_PREFIX}teems bash