How exactly does multipass exec command work?

Multipass
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Hello! I am testing multipass connected to libvirt and am wondering what mechanism does multipass exec uses to execute a command inside a running instance? Using libvirt + qemu I am used to the fact that there is no way of getting inside of a running virtual machine but via ssh or a console via vnc for example.

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Hi @lionkg, we do connect through SSH to execute commands in instances. We have thoughts of connecting through a UNIX socket, to a dedicated agent inside instances at some point, but that’s not currently implemented.

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Let’s see if the SSH execute commands work or not. Unix socket may be the best option.

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Is it possible to disable this feature if need be? Is there a dedicated sshd process running inside of an instance? Dedicated system user inside a cloud vm?

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@lionkg: Multipass VMs run Ubuntu Cloud images with a default “ubuntu” user and sshd is there by default. You could disable it, but Multipass wouldn’t be able to connect to and manage VMs.

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@brodynienow4: SSH is just what we use internally, you don’t have to use it yourself – just multipass shell or multipass exec directly. multipass help for more.

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