I forgot where I saw this done, but I was finally able to produce something close. The subject is only visible from a distance, getting close quickly dissolves it into something dizzying to look at.
Uneasy Truchet
Kumiko Tiles
Fake Time in Docker
What if you need a container to have a different time than its host? Well, LD_PRELOAD has a solution for you. While this solution generally works outside of Docker, I rarely find myself outside of a container these days. I like that it works in one without requiring special privileges.
Dockerfile:
FROM ubuntu:latest
RUN apt-get update --fix-missing
RUN DEBIAN_FRONTEND=noninteractive apt-get install git build-essential -y
RUN git clone https://github.com/wolfcw/libfaketime.git
WORKDIR /libfaketime/src
RUN make install
RUN echo "/usr/local/lib/faketime/libfaketime.so.1" > /etc/ld.so.preload
ENTRYPOINT bashBuild with:
docker build -t faketime .Run with:
docker run -ti --rm -e FAKETIME="1970-01-01 00:00:00" --name faketime faketimeOf course you can run the “date” command to confirm, but this fake time percolates to all processes in the container. I was reminded of the existence of LD_PRELOAD to hijack system calls recently, and remembered this old trick I had stashed in my notes.
And just in case it goes away, I mirrored the excellent repo this is based on here.