Open Stack

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?

-J

-- 
Jason E. Rist
Senior Software Engineer
OpenStack User Interfaces
Red Hat, Inc.
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github/twitter: knowncitizen