SmartOS - custom LX zone template

An IT guy

— 1 min read
SmartOS - custom LX zone template
Photo by imgix / Unsplash

I want all of my Ubuntu "machines" to be ready to be managed by Ansible. In my case that requires adding a user and the ssh key.

Here is a quick and dirty script I wrote to prepare the "machine". Once I have the container ready, I make an image from it and use that the base for the rest of my "machines". I also tweaked the timezone. This works for RockyLinux as well, except the group is wheel not sudo.

#!/bin/bash

useradd -s /bin/bash -G sudo -m -c "Ansible user" your-user-here

echo "your-user-here ALL=(ALL) NOPASSWD:ALL" > /etc/sudoers.d/91-ansible-usr

mkdir /home/your-user-here/.ssh/

echo "ssh-ed25519 qoGMBcDyDHmgThs/kPIyAXsX0lTAiq" > /home/your-user-here/.ssh/authorized_keys

chown -R your-user-here:your-user-here /home/your-user-here
chmod 700 /home/your-user-here/.ssh
chmod 400 /home/your-user-here/.ssh/authorized_keys

rm /etc/ssh/ssh_host_*
truncate -s 0 /etc/machine-id
rm /etc/localtime
ln -s /usr/share/zoneinfo/America/New_York /etc/localtime

This way I have a consistent base image for all machines in my data center.

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