The new MinimalConsoleServices implementation will work, though.Īlthough drmSetMaster will fail (as the container user doesn’t have real root privileges), opening the drm device when there is no current DRM master will implicitly gain DRM master. Likewise, the container doesn’t have access to the host’s DBus bus, and so -console-provider=logind won’t work either. However: the root user in the container isn’t privileged and doesn’t have access to /dev/tty*, so -console-provider=vt won’t work. Now qtmir-builder has access to all the GPUs on the system!. We now have a full build of the Mir tree and QtMir built against it in the container how do we test it?Ĭonveniently, LXD has the option to map GPU devices into containers: lxc config device add qtmir-builder gpu gpu Lxc exec qtmir-builder - ninja -C /qtmir-build install Lxc exec qtmir-builder - ninja -C /qtmir-build Lxc exec qtmir-builder - cmake -DCMAKE_BUILD_TYPE=Debug -G Ninja -DCMAKE_INSTALL_PREFIX=/usr -B/qtmir-build -H/qtmir-source Lxc exec qtmir-builder - make -C /mir-build -j installĪnd now QtMir (using ninja, because it’s faster): lxc exec qtmir-builder - apt install ninja-build Lxc exec qtmir-builder - make -C /mir-build -j9 We can “fix” this with chmod -R a+w $PATH_TO_MIR_SOURCE to make the Mir source tree world-writable.įirst Mir: lxc exec qtmir-builder - cmake -DCMAKE_BUILD_TYPE=Debug -DCMAKE_INSTALL_PREFIX=/usr -B/mir-build -H/mir-source Unfortunately, that’s not quite enough the Mir build generates files in the source tree, which won’t work - the container users do not have (usually) write access to the source tree.

Lxc config device add qtmir-builder mir-source disk source=$PATH_TO_MIR_SOURCE path=/mir-sourceĪnd we now have QtMir and Mir sources available in the container. Now we need to map in the QtMir and Mir sources, like so: lxc config device add qtmir-builder qtmir-source disk source=$PATH_TO_QTMIR_SOURCE path=/qtmir-source lxc exec qtmir-builder - apt build-dep unity8.wget -O - | lxc exec qtmir-builder - apt-key add.echo 'deb-src bionic main' | lxc exec qtmir-builder - tee /etc/apt//ubports-bionic.list.echo 'deb bionic main' | lxc exec qtmir-builder - tee /etc/apt//ubports-bionic.list.Spin up a 18.04 LXD container: lxc launch ubuntu:18.04 qtmir-builderĮnable the UBports repositories, and install the necessary dependencies: This mostly works, and for anyone else wanting a relatively easy development environment, here’s the process: So I wanted to try testing in an LXD container it’s easy to spin up a 18.04 container, which UBports supports. Unfortunately, QtMir is actually rather hard to build in my Cosmic Cuttlefish development environment due to all the missing dependencies. I’ve recently been wanting to ensure my Mir changes don’t break qtmir.

Ubuntu toolchain clion