a12e/docker-qt repository overview

These Docker images allow you to very easily build a Qt app accross all platforms. You may use build system (e.g. Gitlab CI) to fully leverage these images.

⁠Qt toolchain Docker images

Qt 6.3.2 (EOL 2023-04-12)

• a12e/docker-qt:6.3-linux (Ubuntu 18.04 LTS, GCC 11.1, CMake 3.24.2, linuxdeployqt)

Qt 6.4.0 (EOL 2023-09-29)

• a12e/docker-qt:6.4-android (Ubuntu 22.04 LTS, CMake 3.24.2, OpenSSL 1.1.1q)
• a12e/docker-qt:6.4-linux (Ubuntu 18.04 LTS, GCC 11.1, CMake 3.24.2, linuxdeployqt)

⁠Android example

docker run -it --rm --volume $PWD:/src a12e/docker-qt:6.4-android

mkdir ~/build && cd ~/build
qt-cmake /src -DQT_ANDROID_BUILD_ALL_ABIS=YES
cmake --build . --target aab

⁠Linux example

docker run -it --rm --volume $PWD:/src a12e/docker-qt:6.4-linux

mkdir ~/build && cd ~/build
cmake /src
cmake --build . --parallel
cmake --install . --prefix $PWD/appdir/usr
linuxdeployqt appdir/usr/share/applications/*.desktop -qmldir=/src/resources/ -extra-plugins=platforms
cp -v /usr/lib/x86_64-linux-gnu/libstdc++.so.6 appdir/usr/lib/
linuxdeployqt appdir/usr/share/applications/*.desktop -appimage

⁠Notes

OpenSSL for Android is compiled and installed directly inside the Qt directory, so you can easily link to or ship it:

find_package(OpenSSL 1.1 REQUIRED)
target_link_libraries(MyTarget PRIVATE
    OpenSSL::Crypto # if needed by your app
    OpenSSL::SSL # for androiddeplyqt: it will copy libssl.so in the APK
)

Linux images are built inside a 18.04 LTS Ubuntu, to allow the AppImage to be run on older systems. Otherwise, links to too recent versions of GLIBC are made. However, the libstdc++.so.6 needs to be deployed, because Qt requires C++17 features.