Deploy LXD on CentOS 7 with Snap to manage containers and virtual machines. Our LXC/LXD Support team is ready to assist you.
How to Deploy LXD on CentOS 7 Using Snap
Running multiple Linux systems on a single server is a little tricky. With LXD, you can manage containers and virtual machines together, control resources, and move active systems without downtime. Pairing LXD with CentOS 7 gives you a stable, reliable environment for testing, development, or production. This guide shows how to install and set up LXD on CentOS 7 step by step, read the article to get your containers running quickly.
What is LXD?
LXD is an open source tool that lets you run Linux containers and virtual machines together. It makes running full Linux systems fast and easy. You can control how much memory or resources each container uses. Active containers can move between servers without stopping. LXD containers provide isolated environments for apps, making management simpler and more efficient. LXD also offers ready made Linux images and allows remote management.
What is CentOS?
CentOS is a free, open source Linux distribution based on Red Hat Enterprise Linux. It offered a stable and reliable platform for servers with full RHEL compatibility. Storage Pool in LXD can be used to manage CentOS containers efficiently, allocating disk space and resources as needed. CentOS Linux is no longer actively developed, and older versions have reached end-of-life, so users are encouraged to move to supported alternatives.
Set up LXD on CentOS 7 today
Installing LXD on CentOS 7 Using Snap
Here are a few simple steps to be followed to set up LXD on CentOS 7. Check out the section below for an easy installation procedure.
Step 1: Install Snapd
Start by adding the EPEL repository:
sudo yum install epel-releaseThen install Snapd:
sudo yum install snapdEnable the Snap service:
sudo systemctl enable --now snapd.socketFinally, create a link for Snap:
sudo ln -s /var/lib/snapd/snap /snapStep 2: Prepare the Kernel
LXD needs user namespaces to work. Enable them with grubby and increase the limits:
echo "user.max_user_namespaces=3883" | sudo tee /etc/sysctl.d/99-userns.confRestart your system to apply the changes.
Step 3: Optional ZFS Storage
If you want ZFS for storage, install it from the ZFS repository and enable it using yum.
Step 4: Install LXD
Install LXD with Snap:
sudo snap install lxdStep 5: Configure LXD
Add yourself to the LXD group:
sudo usermod -a -G lxd your_usernameLog out and back in or run newgrp lxd. Then run lxd init and follow the prompts to set up storage, networking, and other options.
Step 6: Test It
Check LXD information with lxc info, see available images using lxc image list images:, and launch a test container:
lxc launch images:centos/7/amd64 my-centos-containerAccess the container shell with lxc exec my-centos-container bash.
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Conclusion
Deploying LXD on CentOS 7 with Snap makes your way easier to get containers and virtual machines. Installing Snapd, adjusting the system, and setting up LXD gives you a stable environment you can rely on. After setup, you can launch containers, manage resources, and move systems between servers without hassle, making your CentOS 7 setup much more powerful.
