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Publishing a LXD Image

While a number of public LXD images exist, we do not want to be stuck updating the same base image in perpetuity. Instead, we can take an already-configured container and publish it to a remote so it can be pulled down and used as any other image. In this lab, we do just that -- create a new image, then try it out on a few different LXD hosts!

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Lab Info
Level
Beginner
Last updated
Apr 06, 2025
Duration
15m

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Table of Contents
  1. Challenge

    Create an Image Based on the Provided Container

    Add the remote:

    lxc remote add lxd-share 10.0.1.110
    

    List the available containers to retrieve the container name:

    lxc list
    

    Take an initial snapshot of the provided image:

    lxc snapshot web01 1.0
    

    Create an image:

    lxc publish local:web01/1.0 lxd-share: --alias nginx-alpine
    
  2. Challenge

    Test the Image Locally

    Create a container on the current host to ensure the image is working:

    lxc launch lxd-share:nginx-alpine web02
    
  3. Challenge

    Test the Image on a Different LXD Host

    Log in to the second dev server, add the remote, and run the lxc launch command:

    lxc remote add lxd-share 10.0.1.110
    lxc launch lxd-share:nginx-alpine web
    
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