Homelab Docker Host setup on ProxMox LXC

System Requirements:

• LXC Container system
• Debian 10+
• 1024MB Memory
• 1 Core

Enable nesting features in the Proxmox VE Container Configuration

1. The /etc/pve/lxc/<CTID>.conf files stores container configuration, where CTID is the numeric ID of the given container.

# On the proxmox server  
# e.g. where my LXC ID is 101  

nano /etc/pve/lxc/101.conf  

1. insert at the bottom of the file:

features: keyctl=1,nesting=1  

1. Reboot container

2. Install useful tools

# Run as root  
apt update  
apt install -y dnsutils net-tools sudo jq  

1. Install Docker

# Run as root  
apt-get update  
sudo apt-get remove docker docker-engine docker.io containerd runc  
sudo apt-get -y install
apt-transport-https 
ca-certificates 
curl
gnupg  
lsb-release  
  
curl -fsSL https://download.docker.com/linux/debian/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg  
  
echo  
"deb [arch=amd64 signed-by=/usr/share/keyrings/docker-archive-keyring.gpg\] https://download.docker.com/linux/debian  
$(lsb\_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null  
  
sudo apt-get update  
sudo apt-get install -y docker-ce docker-ce-cli containerd.io docker-compose  

1. Confirm you can run a docker container:

#̲# Start Docker
sudo systemctl enable docker  

Other Tips

• To ensure containers start on boot add the following setting in your docker-compose.yml :

  restart: always