canonical/lxd

Add lxc config device add disk --type=block for containers

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#10,077 opened on Mar 17, 2022

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Description

Whilst a custom storage volume --type=block can be added to a VM as block device, it can not be attached to a container. Also attaching a custom storage volume to a container as unix-block not possible due to missing source path.

This feature would make the procedure of custom volume handling uniform and consistent throughout instance types and storage volume types.

Contributor guide

Research direction
Examine how LXD handles device configuration for containers and VMs, focusing on the 'lxc config device add' command and the disk device type. Look at the code that differentiates between container and VM device attachment, especially for block devices. Understand the existing logic for custom storage volumes and why block devices aren't allowed for containers. Then implement support for type=block for containers.
Tech stack
go
Domain
backenddevops
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
GitGo
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40