Add support for multiple agent binaries #427
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Keeping this as draft for now as I still need to add the virtiofsd support. |
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Right, so my plan to use a shared virtiofsd for all VMs doesn't actually work. The alternative would be a daemon per VM on top of the existing one for the main config drive. So instead going with the other option which is to remove virtiofs for the config drive too, having both config and agent drives be read-only 9p only. virtiofs will obviously still be used for any user configured shares as those actually benefit from its better throughput and lower latency. |
This will make it much easier to keep things in sync with distrobuilder. Signed-off-by: Stéphane Graber <stgraber@stgraber.org>
Signed-off-by: Stéphane Graber <stgraber@stgraber.org>
Signed-off-by: Stéphane Graber <stgraber@stgraber.org>
Signed-off-by: Stéphane Graber <stgraber@stgraber.org>
Signed-off-by: Stéphane Graber <stgraber@stgraber.org>
Signed-off-by: Stéphane Graber <stgraber@stgraber.org>
The current setup already had every single virtual machine run virtiofsd for the very lightweight and read-only config drive. With the addition of the agent drive, the initial plan was to use a single shared virtiofsd instance for multiple virtual machines. But that doesn't appear to actually be supported. The alternative would therefore have been having another virtiofsd instance running for every VM, just to get a single 10MB large file downloaded once per VM boot. This doesn't make a lot of sense, so let's make things easier and restrict the config and agent drives to just be simple read-only 9p. Additional shared disks from the host system will keep being available over both 9p and virtiofs as those are the ones where the higher virtiofs throughput and lower latency make the most sense. Signed-off-by: Stéphane Graber <stgraber@stgraber.org>
Signed-off-by: Stéphane Graber <stgraber@stgraber.org>
This adds support for a separate 9p/virtiofs share for the agent which will be shared system-wide (saves us from data duplication) and can contain multiple binaries to handle multiple architectures and operating systems.
Closes #263