forlabs/libfaketime repository overview

⁠Docker image for libfaketime

This image only contains a single file, /faketime.so, built for debian x86-64. It is meant to let other projects use a pre-compiled faketime library.

⁠Example Dockerfile

...


COPY --from=forlabs/libfaketime /faketime.so /faketime.so

# Define LD_PRELOAD here to always use faketime, or set it with '-e' in 
# 'docker run', or with the 'environment' key in a compose file. 
# ENV LD_PRELOAD=/faketime.so


...

⁠Setting up a fake time

To set a fake time, set the FAKETIME environment variable (see https://github.com/wolfcw/libfaketime⁠). For instance, if LD_PRELOAD is already set in the Dockerfile of a given image, one could run something like docker run -it -e 'FAKETIME=+15d' <image> <command> to run <command> in <image> at a date 15 days in the future.