This is a tool to create the harsh environments "some" programs create inside of containers.

Once the repo is cloned move to the dockerfile directory and build the new image:

docker build --no-cache -t urchin .

This will compile urchin from a gcc image and then create a new image from an ubuntu image to run urchin.

To run urchin start the container through Docker.

Allocate 1Gb of ram

docker run -it --rm urchin:latest /urchin -m 1076277500

Start web UI on port 8080

docker run -it --rm urchin:latest /urchin -w 8080

Create 10 forked zombies

docker run -it --rm urchin:latest /urchin -e 10

Urchin will automatically capture a number of Linux signals, when Docker attemptes to stop the container the SIGTERM signal is sent, this is captured and is ignored e.g.

docker stop <container ID>

.. inside container ..

received SIGTERM

Eventurally Docker will send a SIGKILL

Help

The following will display the available help/commands:

docker run -it --rm urchin:latest /urchin -h