The build configuration settings are made in config.bashrc.
Variables in that file allow choosing the sources of the base ngen-forcing image, the base ngen image, as well as all RTE component packages.
The base images may be sourced from remote GHCR images, built from local code, or built from remote GH code.
The component packages may be installed from local code or installed from remote GH code.
Sourcing from remote allows the user to specify any Git "reference" or "ref" name, i.e. a specific branch, tag, or commit hash from GitHub.
Most run settings are made via CLI arguments of the executable Python modules within bin_mounted/.
Some run settings are configured in bin_mounted/consts.py, bin_mounted/ngen_logging.json, and config.bashrc.
If using a dynamic GHCR image tag such as "latest", if you have already pulled that tag previously and you wish to update to the current version of that tag, you may need to run docker pull
At runtime, host disk mounts occur within run.sh. These include various data directory mounts for inputs, static forcing configuration files, module parameters, intermediary outputs, and output realization files.
Regardless of build instruction, the local state of files from the following repositories is used:
ngen-forcing/NextGen_Forcings_Engine_BMI/BMI_NextGen_Configs/config_templates/
nwm-msw-mgr/src/mswm/module_parameter_files/