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qemu_test: disable features that are not needed for tests (closure 641 -> 335.3M) #49403

Merged
merged 9 commits into from Oct 20, 2020
Merged

qemu_test: disable features that are not needed for tests (closure 641 -> 335.3M) #49403

merged 9 commits into from Oct 20, 2020

Commits on Oct 19, 2020

  1. qemu: strip down the features for the test runner 

    This allows much faster VM-test based systemd testing as the closure of
qemu suddenly shrinks to reasonable sizes again.
    @andir
    andir committed Oct 19, 2020
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  2. nixos/tests: make the driver attribute use a rich qemu 

    Since we previously stripped down the features of `qemu_test` some of
the features users are used to while running tests through the (impure)
driver didn't work anymore. Most notably we lost support for graphical
output and audio. With this change the `driver` attribute uses are more
feature complete version of QEmu compared to the one used in the pure
Nix builds.

This gives us the best of both worlds. Users are able to see the
graphical windows of VMs while CI and regular nix builds do not have to
download all the (unnecessary) dependencies.
    @andir
    andir committed Oct 19, 2020
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  3. nixos/tests: expose both the interactive and non-interactive driver 

    For a lot of the work the non-interactive drivers are enough and it is
probably a good idea to keep it accessible for debugging without
touching the Nix expression.
    @andir
    andir committed Oct 19, 2020
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  4. qemu: make ncurses optional for the test runner 

    This shaves another 3MB off the closure size of QEMU.
    @andir
    andir committed Oct 19, 2020
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  5. nixos/qemu-guest-agent: make the QEMU guest agent package configurable

    @andir
    andir committed Oct 19, 2020
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  6. nixos/tests: make sure we use the qemu_test package to provide the Gu… 

    …est Agent

This reduces the closure size for the minimal test by a lot since we no
longer have to build the regular QEMU for even the simplest test.
    @andir
    andir committed Oct 19, 2020
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  7. iptuils: Remove systemd from dependencies 

    In our case systemd is only used to figure out if the unit files should
be generated.
    @andir
    andir committed Oct 19, 2020
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  8. iputils: apply proposed upstream patch to get rid of systemd dependency 

    This allows us to get rid of the hack and the systemd dependency and
thus reduces the rebuild closure whenever systemd changes.
    @andir
    andir committed Oct 19, 2020
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  9. libndctl: clarify that it needs udev not systemd 

    While (currently) it is the same package it carries more information if
we explicitly state that we want udev.
    @andir
    andir committed Oct 19, 2020
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