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Possible extension: we could do a |
When run in a systemd service, systemd will kill after timeout already. |
lib/runners/qemu.nix
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| setBalloonScript = | ||
| if socket != null | ||
| if socket != null && balloon |
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This line shoud be changed in the other commit which probably should also be an extra commit.
That doesn't read promissing from the docs. We never really want this. |
| '' | ||
| ( | ||
| ${writeQmp { execute = "qmp_capabilities"; }} | ||
| ${writeQmp { execute = "query-commands"; }} |
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What is your motivation to change this?
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Same as below, I did not know this was required.
| if balloon | ||
| then | ||
| if socket != null then | ||
| '' |
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If we change this again, we can drop the change in the last commit, to make the history cleaner.
| ${writeQmp { execute = "qmp_capabilities"; }} | ||
| ${writeQmp { execute = "balloon"; arguments.value = 987; }} | ||
| ) | sed -e s/987/$VALUE/ | \ | ||
| ${pkgs.socat}/bin/socat STDIO UNIX:${socket},shut-none | \ | ||
| tail -n 1 | \ |
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How did you test that this did not break anything?
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That's because I removed the echo capabilities line, which doesn't do anything because it gets tailed away. That line doesn't seem to do anything at all because the user won't be able to see the output.
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I am sorry I just read the docs; I did not realise you had to execute capabilities to establish a connection, what a strange requirement
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https://qemu-project.gitlab.io/qemu/interop/qemu-qmp-ref.html#command-QMP-machine.system_powerdown
I'm assuming this is doing an ACPI shutdown request based on how they describe it. But that should be good enough right? For me the current keystroke sequence doesn't even work.
Also I can't help but to modify the close by balloon script as well