[bug#50133] [PATCH 0/6] Add lxd package and service.

[Vagrant Cascadian]

retitle 50133 Add lxd service
thanks

On 2021-09-28, Ludovic Courtès wrote:
> The whole series LGTM and I’ve already applied patch 1–5.

Retitling as the only outstanding issue is the lxd service.


> Some comments below about the service:
>
> Andrew Whatson <whatson@gmail.com> skribis:
>
>> * gnu/services/virtualization.scm (lxd-configuration): New type.
>> (%lxd-accounts, lxd-service-type): New variables.
>> (%lxd-activation, lxd-shepherd-service): New procedures.
>> * gnu/system/file-systems.scm (%elogind-file-systems): Add
>> "/sys/fs/cgroup/systemd" file-system.
>
> [...]
>
>> +(define lxd-service-type
>> +  (service-type
>> +   (name 'lxd)
>> +   (extensions
>> +    (list (service-extension activation-service-type
>> +                             %lxd-activation)
>> +          (service-extension shepherd-root-service-type
>> +                             lxd-shepherd-service)
>> +          (service-extension account-service-type
>> +                             (const %lxd-accounts))))
>> +   (default-value (lxd-configuration))))
>
> Please add a ‘description’ field.
>
>> index b9eda80958..7c3777298b 100644
>> --- a/gnu/system/file-systems.scm
>> +++ b/gnu/system/file-systems.scm
>> @@ -499,6 +499,17 @@ TARGET in the other system."
>>             (check? #f)
>>             (options "none,name=elogind")
>>             (create-mount-point? #t)
>> +           (dependencies (list (car %control-groups))))
>> +         ;; The systemd cgroup needs to exist to run systemd inside linux
>> +         ;; containers (eg. via LXD).  This is *not* required for elogind, 
>> but
>> +         ;; keeping it with the other systemd hacks seemed sensible, for 
>> now.
>> +         (file-system
>> +           (device "cgroup")
>> +           (mount-point "/sys/fs/cgroup/systemd")
>> +           (type "cgroup")
>> +           (check? #f)
>> +           (options "none,name=systemd")
>> +           (create-mount-point? #t)
>>             (dependencies (list (car %control-groups)))))
>>     %control-groups))
>
> Instead of adding it here, how about extending
> ‘file-system-service-type’ instead, similar to what
> ‘qemu-binfmt-service-type’ does?  That way, the extra requirement would
> be limited to LXD.
>
> Two other things, could you add:
>
>   1. documentation in the manual under “Virtualization Services”, with a
>      commented config example?
>
>   2. (ideally) a system test to ensure that the basics of the service
>      are working?


live well,
  vagrant

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