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You can customize an environment to enable tools, run scripts, or manage environment variables. You may need to be an administrator to edit an existing environment.
  • Click Customize before Building if you just created an Environment and want to enable tools, run scripts, or manage environment variables.
  • To edit an existing Environment, go to Govern > Environments in the navigation pane and click the name of an Environment. Then click Edit Definition.

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Order of script execution

Domino runs setup scripts before and after running the requirements.txt file. The scripts within an environment are executed in the following order:
  • First, it executes pre-setup scripts.
  • Next, it installs packages from the requirements.txt file.
  • Then Domino runs post-setup and pre-run scripts.
  • Post-run scripts are executed after your Workspace, Job, or App is stopped.
However, no scripts are run before or after tasks in a distributed compute cluster environment, such as Spark, Ray, Dask, or MPI.

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Define your environment

Before you add items to these scripts and the requirements.txt file, think about whether similar instructions should be included directly in the environment’s Dockerfile. This can make it faster to start workspaces, jobs, and other tasks using the environment because the necessary work is already included in the Docker image. Domino Environment Overview Tab You can start by going to Govern > Environments and selecting the environment you want to define from the list. Then click Edit Definition. On the Overview tab, you can update the Description or change the environment’s Visibility. You won’t be able to change the Environment Base or Supported Cluster Settings.

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Dockerfile instructions

Enter your Dockerfile layers. Some things to remember:
  • Exclude the FROM statement.
  • Commands can be run as root or other user available in the base image.
  • Docker can’t access your project files or user environment variables when building.
  • There is a limit of 127 layers.
Docker’s official site has more detailed information about Docker.

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Pluggable workspace tools

Enter the interactive tools needed by any Project that uses this Environment. Add Workspace IDEs has more information about interactive tools.

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Run setup scripts

Enter the bash code that is executed at runtime. Domino executes these commands at runtime and runs them as root.
  • Pre Run Script: Enter commands to execute before the Python packages in your Project’s requirements.txt are installed.
  • Post Run Script: Enter commands to execute after your Workspace/Job/App is stopped.

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Environment variables

Set the Variable Names and their Values.

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Advanced

In the advanced section, enter the bash code executed at a specified step in your experiment’s lifecycle.
  • Pre Run Script: Enter commands to execute before installing Python packages in your Project’s requirements.txt.
  • Post Run Script: Enter commands to execute after the Python packages in your Project’s requirements.txt are installed.
  • Enable VPN Networking: Select this if a VPN is to be used for that environment.

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Revision History

Enter a short description of the changes to the Environment.

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Next steps