FROM base/archlinux

USER root

ENV ARCH_USER archie

RUN pacman -Syy &&
    pacman -S --noconfirm sudo

RUN useradd --create-home $ARCH_USER &&
    passwd -d $ARCH_USER &&
    echo "${ARCH_USER} ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers

RUN pacman -S --noconfirm
    lximage-qt

USER $ARCH_USER
WORKDIR /home/$ARCH_USER

docker build -t qt-test .

docker run -it qt-test

[archie@hash ~]$ QT_DEBUG_PLUGINS=1 lximage-qt
QFactoryLoader::QFactoryLoader() checking directory path "/usr/lib/qt/plugins/bearer" ...
QFactoryLoader::QFactoryLoader() looking at "/usr/lib/qt/plugins/bearer/libqconnmanbearer.so"
/usr/lib/qt/plugins/bearer/libqconnmanbearer.so: Cannot allocate memory
"Out of memory while loading plugin '/usr/lib/qt/plugins/bearer/libqconnmanbearer.so'."
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/usr/lib/qt/plugins/bearer/libqgenericbearer.so"
/usr/lib/qt/plugins/bearer/libqgenericbearer.so: Cannot allocate memory
"Out of memory while loading plugin '/usr/lib/qt/plugins/bearer/libqgenericbearer.so'."
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/usr/lib/qt/plugins/bearer/libqnmbearer.so"
/usr/lib/qt/plugins/bearer/libqnmbearer.so: Cannot allocate memory
"Out of memory while loading plugin '/usr/lib/qt/plugins/bearer/libqnmbearer.so'."
         not a plugin
QFactoryLoader::QFactoryLoader() checking directory path "/usr/lib/qt/plugins/platforms" ...
QFactoryLoader::QFactoryLoader() looking at "/usr/lib/qt/plugins/platforms/libqeglfs.so"
/usr/lib/qt/plugins/platforms/libqeglfs.so: Cannot allocate memory
"Out of memory while loading plugin '/usr/lib/qt/plugins/platforms/libqeglfs.so'."
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/usr/lib/qt/plugins/platforms/libqlinuxfb.so"
/usr/lib/qt/plugins/platforms/libqlinuxfb.so: Cannot allocate memory
"Out of memory while loading plugin '/usr/lib/qt/plugins/platforms/libqlinuxfb.so'."
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/usr/lib/qt/plugins/platforms/libqminimal.so"
/usr/lib/qt/plugins/platforms/libqminimal.so: Cannot allocate memory
"Out of memory while loading plugin '/usr/lib/qt/plugins/platforms/libqminimal.so'."
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/usr/lib/qt/plugins/platforms/libqminimalegl.so"
/usr/lib/qt/plugins/platforms/libqminimalegl.so: Cannot allocate memory
"Out of memory while loading plugin '/usr/lib/qt/plugins/platforms/libqminimalegl.so'."
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/usr/lib/qt/plugins/platforms/libqoffscreen.so"
/usr/lib/qt/plugins/platforms/libqoffscreen.so: Cannot allocate memory
"Out of memory while loading plugin '/usr/lib/qt/plugins/platforms/libqoffscreen.so'."
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/usr/lib/qt/plugins/platforms/libqvnc.so"
/usr/lib/qt/plugins/platforms/libqvnc.so: Cannot allocate memory
"Out of memory while loading plugin '/usr/lib/qt/plugins/platforms/libqvnc.so'."
         not a plugin
QFactoryLoader::QFactoryLoader() looking at "/usr/lib/qt/plugins/platforms/libqxcb.so"
/usr/lib/qt/plugins/platforms/libqxcb.so: Cannot allocate memory
"Out of memory while loading plugin '/usr/lib/qt/plugins/platforms/libqxcb.so'."
         not a plugin
QFactoryLoader::QFactoryLoader() checking directory path "/home/archie/platforms" ...
qt.qpa.plugin: Could not find the Qt platform plugin "xcb" in ""
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Aborted (core dumped)