beforeScript

The beforeScript directive executes a custom Bash snippet before the main process script is run.

Usage

Use it to initialize the underlying cluster environment or perform other custom initialization. For example:

process hello {
    beforeScript 'source /cluster/bin/setup'

    script:
    """
    echo 'hello'
    """
}

When the process is containerized (using the container directive), the beforeScript is executed in the container only if the executor is container-native (for example, cloud batch executors and Kubernetes). Otherwise, the beforeScript is executed outside the container.