Step‑by‑Step Guide to Building Lightweight LXC Containers on Linux
This tutorial walks you through installing, configuring, and managing LXC containers on a Linux host, covering network bridge setup, service control, container creation, password management, and remote access, all illustrated with clear screenshots.
Using LXC helps build lightweight virtual machines that require minimal resources, making it ideal for hardware‑constrained environments and multi‑node experimental setups.
1. Ensure NetworkManager service is stopped.
2. Simulate the host NIC as a bridge for shared VM networking.
1. Copy ifcfg-eth0 to ifcfg-br0.
2. Edit ifcfg-br0 as shown.
3. Add the following content to ifcfg-eth0:
4. Restart the service.
3. Configure LXC
1. Install LXC.
2. Start the LXC service.
3. Verify the LXC environment.
The status enabled indicates the test passed.
4. Modify LXC’s configuration file as shown.
5. Edit the LXC template file to define VM creation parameters.
In the template, locate the baseurl line and specify a YUM repository.
4. Create a virtual machine
lxc-create options:
-n: specify the VM name.
-t: specify the template module.
A successful installation shows the following prompt.
5. Set the root password.
6. Start the VM.
lxc-start parameters:
-n: VM name.
-d: run the VM in the background.
7. Log into the system.
8. Test the VM.
9. Create another VM and run it in the background.
10. Change the root password.
11. Start the VM.
12. View the VM’s IP address.
13. Shut down the VM.
14. Start the VM in the background.
15. SSH into the VM.
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