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Repository to store files related to docker and docker-compose, in order to run the Regional Ocean Model System.

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docker4roms- Docker image to run the Regional Ocean Modeling System - ROMS

Creating a docker image, based on ubuntu 20.04, to run Regional Ocean Modeling System - ROMS, under any version of linux.

This docker image was based on the one found on MetOcean's repository, with some simplification and adapted by @nilodna for all Hydrodynamics Lab fellows.

General comments

There are two types of configurations to use docker4roms. The first is specific to personal computers, where the user has root privileges.

Pre-requisites

  • Install docker in your system. See here.
  • Right folder structures:
    • your_folder/docker4roms: this repository's folder
    • your_folder/projects: folder with your projects to run
    • your_folder/src_code: you must download the ROMS source code here

Getting started - development building setup

If you're a final user of this service, please skip to the Getting started - final user section.

Clone this repository and then type in your command line:

sudo docker build . -t docker4roms -f ${PWD}/Dockerfile.personal

To access the container with a shared folder between host/guest, use:

docker run -v /path/to/a/shared/folder/projects:/home/lhico/projects -ti docker4roms

Getting started - final user

Clone this repository or just download the docker-compose-personal.yml, but please be aware of the limitations for each setup.

How to run?

After download or clone this repository, access the place where the docker-compose-personal.yml file is and type in your terminal:

Notice that the following option allows multiple containers from a single image. You can replace roms_user, but you should also alter it in docker-compose-personal.yml in the container_name field.

docker-compose -f docker-compose-personal.yml -p roms_user up -d

With this command, the docker-compose software will build the right docker4roms release to your case, create two shared folders between host and container, share the ROMS source code and your project setup, and put all this to run in the background (-d).

Note that the container building process will create two new folders on ../ of your structure. These two folders are fundamental to the Docker4ROMS usability, holding the source code of ROMS and your projects (numerical experiments). Make sure to copy the build_roms.sh file to the projects before accessing the container.

To access the container, you can type:

Again roms_user must be the same as in the docker-compose command.

docker exec -it roms_user bash

and you will access the working directory /home/lhico with two folders: roms_src and projects.

Running my first test case - upwelling

This repository contains a build_roms.shpre-configure to be used inside the docker4roms structure. You must copy this file inside your projects folder and run the following steps for the UPWELLING test case:

# outside the container, first follow this sequence of codes:
cd ../projects 
mkdir upwelling 	# create new folder for our test
chmod 777 upwelling # give full writing and reading privileges
cd upwelling		

# copy files for the UPWELLING test case
cp ../../docker4roms/build_roms.sh .
cp ../../src_code/ROMS/External/roms_upwelling.in .
cp ../../src_code/ROMS/External/varinfo.yaml .
cp ../../src_code/ROMS/Include/upwelling.h .

# Now, access your container:
docker exec -it roms_user bash

# Once inside the container, go to the projects folder and create a new folder
# Note that the build_roms.sh must be in the projects folder.
cd projects; mkdir upwelling

# Now you need to copy the upwelling configuration files, that came with the ROMS source code
cd upwelling
cp ../build_roms.sh .
cp ../../roms_src/ROMS/External/roms_upwelling.in  .
cp ../../roms_src/ROMS/External/varinfo.dat .
cp ../../roms_src/ROMS/Include/upwelling.h .

# compile the model:
sudo bash build_roms.sh

# change VARNAME = varinfo.dat in the roms_upwelling.in
nano roms_upwelling.in

# now just run the model:
sudo ./romsS < roms_upwelling.in

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Repository to store files related to docker and docker-compose, in order to run the Regional Ocean Model System.

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