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Add support for multiple agent binaries #427

Merged
merged 8 commits into from
Jan 24, 2024
Merged

Add support for multiple agent binaries #427

merged 8 commits into from
Jan 24, 2024

Commits on Jan 24, 2024

  1. incusd/instance/qemu: Move agent loader to separate files 

    This will make it much easier to keep things in sync with distrobuilder.

Signed-off-by: Stéphane Graber <stgraber@stgraber.org>
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    stgraber committed Jan 24, 2024
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  2. incusd/apparmor/qemu: Remove mention of userns 

    Signed-off-by: Stéphane Graber <stgraber@stgraber.org>
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    stgraber committed Jan 24, 2024
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  3. incusd/instance/qemu: Make config drive name configurable 

    Signed-off-by: Stéphane Graber <stgraber@stgraber.org>
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    stgraber committed Jan 24, 2024
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  4. incusd/instance/qemu: Add new agent share 

    Signed-off-by: Stéphane Graber <stgraber@stgraber.org>
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  5. incusd/apparmor/qemu: Allow access to agent path 

    Signed-off-by: Stéphane Graber <stgraber@stgraber.org>
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    stgraber committed Jan 24, 2024
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  6. doc: Add INCUS_AGENT_PATH 

    Signed-off-by: Stéphane Graber <stgraber@stgraber.org>
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    stgraber committed Jan 24, 2024
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  7. incusd/instance/qemu: Only expose config/agent drives over 9p 

    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>
    @stgraber
    stgraber committed Jan 24, 2024
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  8. incusd/instance/qemu/agent-loader: Remove virtiofs 

    Signed-off-by: Stéphane Graber <stgraber@stgraber.org>
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    stgraber committed Jan 24, 2024
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