4 title: "Customizing the Crunch runtime environment"
7 This page describes how to customize the runtime environment (e.g. the programs, libraries, and other dependencies needed to run a job) that a crunch script will be run in.
9 {% include 'tutorial_expectations' %}
13 Arvados uses "Docker":https://www.docker.com/ images to provide a runtime environment for Crunch jobs.
15 This page will demonstrate how to build the arvados/jobs Docker image, manually install additional software into the image to create a new custom image, and upload that image to Arvados for use by Crunch jobs.
17 Arvados images are based on "Debian.":https://debian.org In order to build