When is it better to just use containers?

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On 1/28/23 18:43, Demi Marie Obenour wrote:
> On 1/28/23 18:06, Nico Kadel-Garcia wrote:
>> On Thu, Jan 26, 2023 at 8:31 PM Reon Beon via devel
>> <devel@xxxxxxxxxxxxxxxxxxxxxxx> wrote:
>>>
>>> Are there still some outstanding bugs preventing this from happening?
>>
>> Is there any one critical feature that justifies the update? Avoiding
>> the requirement of python is... OK, maybe understandable, but I don't
>> see it as a "must-have" improvement. And better modularity support....
>> My observation so far is that modularity simply destabilizes systems,
>> because the authors of the "modularized" tools do not build up the
>> full suites of likely necessary components. I'm running into that
>> right now with python310 back in RHEL 8 for ansible, the results are
>> not pretty.
> 
> At this point it might be better to just containerize Ansible.
> Containers may waste resources and require extra effort to keep
> up-to-date, but they *work*, and that is important.  They also
> *massively* reduce the test burden.

To elaborate: if I am an upstream developer for something like Ansible,
my options are either:

1. Ship a whole bunch of packages for a whole bunch of distributions
   and make sure everything works across all of the various
   dependency versions.  This also means that I have to restrict
   myself to the packages that e.g. RHEL 8 has, which might be
   quite old.

2. Ship a single container that only needs to be QA’d once, works
   everywhere, and has no dependencies except for the Linux kernel.
   I get to update dependencies when *I* want to, and don’t have
   to worry about breaking user’s systems.  I can even ship a
   shell script wrapper so that the container can be invoked as
   a binary.

3. Something that I am not aware of (suggestions welcome).

It’s pretty easy to see why someone would go with option 2.
-- 
Sincerely,
Demi Marie Obenour (she/her/hers)
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