Proxmox Containers

Creating an LXC Container

LXC (Linux Containers) is a lightweight virtualization method that uses containerization to run multiple isolated Linux systems (containers) on a single host. Unlike full virtual machines, LXC shares the host kernel, making it more resource-efficient and faster to start, ideal for lightweight workloads and testing environments.

Steps:

1. Download or upload an LXC template to your Proxmox storage (e.g., local).

2. Go to Create CT in the Proxmox Web GUI.

• General: Hostname: e.g., ubuntu-container

• Template: Select the desired LXC template (e.g., ubuntu-22.04-standard)

• Root Disk:

• Choose local-lvm or other storage

• Set disk size

• CPU & Memory: Example: 1-2 cores, 2GB RAM

• Network:

• Select vmbr0 (bridge to LAN)

• Set IP configuration (DHCP or static IP)

• Confirm and finish the container creation wizard.

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Post-Container Setup:

• Start the container.
• Access the container console via Proxmox GUI or SSH.
• Inside the container, update packages and install necessary software:

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LXC Templates

LXC templates allow you to quickly deploy containers with pre-installed operating systems and configurations.

Creating LXC Templates

Steps to use or add LXC templates:

1. Download templates directly from the Proxmox GUI

   • Navigate to Node Name → Local (storage) → Content
   • Click Templates
   • Select and download the desired LXC template (e.g., ubuntu-22.04-standard)

2. Or upload a custom .tar.gz template manually

   • Upload your custom LXC template archive to the storage’s templates folder, usually at:
     

     /var/lib/vz/template/cache/
     

Using LXC Templates

• When creating a new container, select the downloaded or uploaded template as the base image
• Proceed with container creation as usual

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✅ Leveraging LXC templates speeds up container deployment and ensures environment consistency.