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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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Path Info

Clock icon Beginner
Clock icon 15m
Clock icon Apr 03, 2020

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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

    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
    lxc launch lxd-share:nginx-alpine web

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