Terrence's Site

Why

So, I’ve been on a ‘how can I make my life easier’ kick and started looking into different system management software. Ansible bubbled up to the top because it’s agent-less. This makes a lot of sense for the types of things I’m doing. It might make things slower in a huge setup/infrastructure since there’s some latency doing things through SSH.

Goal

Initial Goal - Automate the entire server baseline setup via Ansible.

Why

I setup my server to boot on power. So I want to boot and run as quickly as possible to minimize downtime due to reboots or power-outages. It happens more than I’d like.

Goal

Document performance settings for Ubuntu 22.04

Settings

• Not a performance setting, but ups the map count limit to allow for Docker to be able to run ELK. Set vm.max_map_count to no less than 262144 (one time configuration)

# Run once, loses setting after reboot.
sudo sysctl -w vm.max_map_count=262144

# Persistent setting.
sudo echo "vm.max_map_count=262144" >> /etc/sysctl.conf