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Creating LXD Container Profiles

A benefit of containers is the ability to create mass amounts of them in a short amount of time. LXD makes ensuring these containers all share the expected container-level instance configurations through the use of container profiles. In this hands-on lab, we will create a profile to use when deploying on a certain storage pool.

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Path Info

Clock icon Beginner
Clock icon 30m
Clock icon Apr 03, 2020

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Table of Contents

  1. Challenge

    Create a New Profile

    Create new storage pool based on the default profile by copying the profile:

    lxc profile copy default dbs
  2. Challenge

    Update the Storage Pool

    Edit the file so the appropriate storage pool is used when a container is deployed:

    lxc profile edit dbs
    config: {}
    description: Default LXD profile
        name: eth0
        nictype: bridged
        parent: lxdbr0
        type: nic
        path: /
        pool: dbs
        type: disk
    name: dbs
    used_by: []

    We can then continue by adding the other configurations into this file directly, or save and exit and set them via the CLI.

  3. Challenge

    Change Instance Settings

    Set the instance boot values using the CLI:

    lxc profile set dbs boot.autostart.priority 99
    lxc profile set dbs boot.stop.priority 1
    lxc profile set dbs snapshots.schedule "0 0 * * *"

    Confirm the changes:

    lxc profile show dbs
  4. Challenge

    Use Profile with Instances

    Create a test image:

    lxc launch alpine test -p dbs

    Then assign it to the existing db01 container; remove any additional profiles:

    lxc profile add db01 dbs
    lxc profile remove db01 default

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