tools/scripts/update-limits.sh

32 lines
1.3 KiB
Bash

#!/bin/bash
function do_update
{
cp /etc/sysctl.conf /etc/sysctl.conf.`date +%F-%H%M%S`
echo "kernel.keys.maxkeys=2000" >> /etc/sysctl.conf
echo "fs.inotify.max_queued_events=1048576" >> /etc/sysctl.conf
echo "fs.inotify.max_user_instances=1048576" >> /etc/sysctl.conf
echo "fs.inotify.max_user_watches=1048576" >> /etc/sysctl.conf
echo "vm.max_map_count=262144" >> /etc/sysctl.conf
echo "net.ipv4.neigh.default.gc_thresh3=8192" >> /etc/sysctl.conf
cp /etc/security/limits.conf /etc/security/limits.conf.`date +%F-%H%M%S`
echo "* soft nofile 1048576" >> /etc/security/limits.conf
echo "* hard nofile 1048576" >> /etc/security/limits.conf
echo "root soft nofile 1048576" >> /etc/security/limits.conf
echo "root hard nofile 1048576" >> /etc/security/limits.conf
echo "* soft memlock unlimited" >> /etc/security/limits.conf
echo "* hard memlock unlimited" >> /etc/security/limits.conf
}
echo "This script enables runing lots of containers on a single host."
echo "Note it must be run as root, sudo is insufficient."
echo "Do you wish to proceed?"
select yn in "Yes" "No"; do
case $yn in
Yes ) do_update; break;;
No ) exit;;
esac
done
sysctl -p