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Reproducing builds

For every build triggered using tuxsuite, you can reproduce the exact same binary locally.

TuxBuild is using TuxMake for building the linux kernel on both cloud or local host. In order to use the exact same toolchain, TuxMake is leveraging podman with custom container images.

Setting up

Host dependencies

You should install podman and python:

sudo apt install podman
sudo apt install python3 python3-pip

TuxMake

You should now install TuxMake from PyPi:

python3 -m pip install --upgrade tuxmake

Reproducing

To reproduce 1uFVhFSO9vz7rwAIvgEBRF1wltH, download tuxmake_reproducer.sh and execute it inside a linux tree at the right hash.

wget https://builds.tuxbuild.com/1uFVhFSO9vz7rwAIvgEBRF1wltH/tuxmake_reproducer.sh
bash ./tuxmake_reproducer.sh

The output will look like: 

# to reproduce this build locally: tuxmake --target-arch=arm --kconfig=versatile_defconfig --kconfig-add=CONFIG_PCI=y --kconfig-add=CONFIG_PCI_VERSATILE=y --kconfig-add=CONFIG_SCSI=y --kconfig-add=CONFIG_BLK_DEV_SD=y --kconfig-add=CONFIG_SCSI_SYM53C8XX_2=y --kconfig-add=CONFIG_EXT4_FS=y --toolchain=gcc-11 --wrapper=none --environment=KBUILD_BUILD_TIMESTAMP=@1624226595 --environment=KBUILD_BUILD_USER=tuxmake --environment=KBUILD_BUILD_HOST=tuxmake --runtime=podman --image=docker.io/tuxmake/arm_gcc-11 config default kernel xipkernel modules dtbs dtbs-legacy debugkernel headers
# CONFIG_PCI=y -> /home/user/.cache/tuxmake/builds/current/0.config
# CONFIG_PCI_VERSATILE=y -> /home/user/.cache/tuxmake/builds/current/1.config
# CONFIG_SCSI=y -> /home/user/.cache/tuxmake/builds/current/2.config
# CONFIG_BLK_DEV_SD=y -> /home/user/.cache/tuxmake/builds/current/3.config
# CONFIG_SCSI_SYM53C8XX_2=y -> /home/user/.cache/tuxmake/builds/current/4.config
# CONFIG_EXT4_FS=y -> /home/user/.cache/tuxmake/builds/current/5.config
make --silent --keep-going --jobs=4 O=/home/user/.cache/tuxmake/builds/current ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- versatile_defconfig
[...]
make --silent --keep-going --jobs=4 O=/home/user/.cache/tuxmake/builds/current ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-
[...]
I: config: PASS in 0:00:06.388861
I: default: PASS in 0:07:28.314187
I: kernel: PASS in 0:00:11.421375
I: xipkernel: SKIP in 0:00:00.244917
I: modules: PASS in 0:00:01.740093
I: dtbs: PASS in 0:00:07.384224
I: dtbs-legacy: SKIP in 0:00:00.483536
I: debugkernel: PASS in 0:00:06.772933
I: headers: PASS in 0:00:08.728308
I: build output in /home/user/.cache/tuxmake/builds/11

The binaries will be available in the build output directory.