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On 08/16/2018 12:10 AM, Jason E. Rist wrote:
> On 08/15/2018 03:32 AM, Cédric Jeanneret wrote:
>> Dear Community,
>>
>> As you may know, a move toward Podman as replacement of Docker is starting.
>>
>> One of the issues with podman is the lack of daemon, precisely the lack
>> of a socket allowing to send commands and get a "computer formatted
>> output" (like JSON or YAML or...).
>>
>> In order to work that out, Podman has added support for varlink¹, using
>> the "socket activation" feature in Systemd.
>>
>> On my side, I would like to push forward the integration of varlink in
>> TripleO deployed containers, especially since it will allow the following:
>> # proper interface with Paunch (via python link)
>>
>> # a way to manage containers from within specific containers (think
>> "healthcheck", "monitoring") by mounting the socket as a shared volume
>>
>> # a way to get container statistics (think "metrics")
>>
>> # a way, if needed, to get an ansible module being able to talk to
>> podman (JSON is always better than plain text)
>>
>> # a way to secure the accesses to Podman management (we have to define
>> how varlink talks to Podman, maybe providing dedicated socket with
>> dedicated rights so that we can have dedicated users for specific tasks)
>>
>> That said, I have some questions:
>> ° Does any of you have some experience with varlink and podman interface?
>> ° What do you think about that integration wish?
>> ° Does any of you have concern with this possible addition?
>>
>> Thank you for your feedback and ideas.
>>
>> Have a great day (or evening, or whatever suits the time you're reading
>> this ;))!
>>
>> C.
>>
>>
>> ¹ https://www.projectatomic.io/blog/2018/05/podman-varlink/
>>
>>
>>
>>
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>>
> 
> How might this effect upgrades?

What exactly? addition of varlink, or the whole podman thingy? The
question was more about "varlink" than "podman" in fact - I should maybe
have worded things otherwise... ?

> 
> -J
> 

-- 
Cédric Jeanneret
Software Engineer
DFG:DF

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