Almalinux LXC setup

Here is a simple review of what should be done in a newly created LXC using the image from Proxmox VE.

Step by step procedure

1. Install important packages

   • update and upgrade

     dnf update -y && dnf upgrade -y
     

   • install basic packages

     dnf install -y vim git tar wget bind-utils net-tools openssh-server
     

   • Optional: Docker installation

     • Add Docker repository

       dnf install -y dnf-plugins-core
       dnf config-manager --add-repo https://download.docker.com/linux/rhel/docker-ce.repo
       

     • Install Docker

       dnf install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
       

     • Enable Docker

       systemctl enable --now docker
       

     • Test Docker installation

       docker run hello-world
       

2. Create a user with sudo privileges (replace thorgan by the username of your choice)

   adduser thorgan
   usermod -aG wheel thorgan
   passwd thorgan
   

   If you installed Docker in step 1, you can give permission to your newly created user to use it:

   usermod -aG docker thorgan
   

   Replace thorgan by the username you created before.

3. Start and enable sshd to accept SSH connections

   service sshd start && systemctl enable sshd
   

Script procedure

#!/bin/bash

dnf update -y && dnf upgrade -y
dnf install -y vim git tar wget bind-utils net-tools openssh-server

read -p "Enter username: " user
adduser "$user"
usermod -aG wheel "$user"
passwd "$user"

service sshd start && systemctl enable sshd

Script with docker installation

#!/bin/bash

# Update & Upgrade
dnf update -y && dnf upgrade -y
# Install necessary packages
dnf install -y dnf-plugins-core vim git tar wget bind-utils net-tools openssh-server

# Adding docker repository
dnf config-manager --add-repo https://download.docker.com/linux/rhel/docker-ce.repo
# Install docker
dnf install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
# Enable docker
systemctl enable --now docker
# Test docker installation
docker run hello-world

# Create sudoer user
read -p "Enter username: " user
adduser "$user"
usermod -aG wheel "$user"
usermod -aG docker "$user"
passwd "$user"

# Enable & Start SSH
service sshd start && systemctl enable sshd