Lab
A Cloud Guru

Configuring a LXD Server for Production Use

When using LXD for production, there are often too many file reads happening for the default Ubuntu 18.04 configuration to handle. To solve this, we can make some configuration adjustments to the server itself. In this lab, we do just that.

Try for free Contact sales

Path Info

Level

Beginner

Duration

15m

Published

Apr 03, 2020

Challenge

Update /etc/security/limits.conf

Open the /etc/security/limits.conf file and update it with the recommended values:

vim /etc/security/limits.conf

*               soft    nofile          1048576
*               hard    nofile          1048576
root            hard    nofile          1048576
root            soft    nofile          1048576
*               soft    memlock         unlimited
*               hard    memlock         unlimited

Challenge

Update /etc/sysctl.conf

vim /etc/sysctl.conf

fs.inotify.max_queued_events=1048576
fs.inotify.max_user_instances=1048576
fs.inotify.max_user_watches=1048576
vm.max_map_count=262144
kernel.dmesg_restrict=1
net.ipv4.neigh.default.gc_thresh3=8192
net.ipv6.neigh.default.gc_thresh3=8192
kernel.keys.maxkeys=2000

Challenge

Reboot the Server
For changes to take effect, we need to reboot the server itself. We can do this with:
```
sudo reboot
```
Wait for a few minutes, then log back in, if desired.

Author

A Cloud Guru

The Cloud Content team comprises subject matter experts hyper focused on services offered by the leading cloud vendors (AWS, GCP, and Azure), as well as cloud-related technologies such as Linux and DevOps. The team is thrilled to share their knowledge to help you build modern tech solutions from the ground up, secure and optimize your environments, and so much more!

What's a lab?

Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.