Hello Alexander,
Gesendet: Sonntag, 02. Januar 2022 um 15:12 Uhr Von: "Alexander Tormasov via users" users@lists.genode.org An: "Genode users mailing list" users@lists.genode.org Cc: "Alexander Tormasov" a.tormasov@innopolis.ru Betreff: Re: Roadmap 2022
In this moment for me somehow obvious that to support things above I need a support in Genode some parts of generic virtualisation. Like namespaces based isolation (read: ability to have same names/id’s/etc in different domains for objects and anything provided by the Genode to user apps, together with additional related API). At least for app snapshotting, migration and persistency this is «the must». They are not so necessary for containers themselves, there are support of some platforms without it, as well without dedicated layered FS (unions and similar like auFS/btrfs/zfs/etc - while it is good to have it).
Note: I suspect that having namespaces virtualisation on the kernel level will give some additional advantages for Genode even in terms of security. Same like happens in Linux with our proposals related to openvz/namespaces/userbeancounters (after some time it became clear that they are necessary for modern OS). This is relatively cheap in implementation and overhead points of view. Did you considers this option as a part of Genode future?
I think your mental image of genode is at odds with reality. Genode is not another Linux (or comparable OS). There are no processes. The most process-like entity in genode is the protection domain(PD). But the PD is already virtualized. That makes it like a container with only one process. To share a namespace between two PDs you have to explicitely configure that sharing. There are libraries that help you with that and contain even some default naming of capabilities. But mostly you will have to setup the sharing of a namespace by copying capabilities between PDs.
Alexander
23 дек. 2021 г., в 21:05, Norman Feske norman.feske@genode-labs.com написал(а):
Dear Genode community,
it is the time of the year again to reflect and make plans for the foreseeable future. Hereby, I'd like to kick off our traditional brainstorming about Genode's road map for the year ahead of us.
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