CaSMM

Computation and Science Modeling through Making

Cloud-based programming interface

Application

client

client is the frontend of the application. It is powered by React and Blockly.

server

server is the web server and application server. It is powered by Node and Strapi.

compile

compile is an arduino compiler service. It is an unofficial fork of Chromeduino.

Environments

The project is divided into three conceptual environments.

Development

Structure

The development environment is composed of five servers. The first one is run with the Create React App dev server. The later four are containerized with docker and run with docker compose.

• casmm-client-dev - localhost:3000

• casmm-server-dev - localhost:1337/admin

• casmm-compile-dev

• casmm-db-dev - localhost:5432

  The first time the db is started, the init_db.sh script will run and seed the database with an environment specific dump. Read about Postgres initialization scripts here. To see how to create this dump, look here.

• casmm-compile_queue-dev

Running

casmm-client-dev

1. Follow the client setup
2. Run yarn start from /client

casmm-server-dev, casmm-compile-dev, casmm-db-dev, and casmm-compile_queue-dev

1. Install docker

2. Run docker compose up from /

   Grant permission to the scripts and server directories if you are prompted

Staging

Structure

The staging environment is a Heroku app. It is composed of a web dyno, compile dyno, Heroku Postgres add-on, and Heroku Redis add-on.

• casmm-staging - casmm-staging.herokuapp.com
  • The web dyno runs server
  • The compile dyno runs compile

Running

casmm-staging is automatically built from the latest commits to branches matching release/v[0-9].[0-9]. Heroku runs the container orchestration from there.

Production

Structure

The production environment is a Heroku app. It is composed of a web dyno, compile dyno, Heroku Postgres add-on, and Heroku Redis add-on.

• casmm - www.casmm.org
  • The web dyno runs server
  • The compile dyno runs compile

Running

casmm is automatically built from the latest commits to master. Heroku runs the container orchestration from there.

Maintenance

All three components of the application have their own dependencies managed in their respective package.json files. Run npm outdated in each folder to see what packages have new releases. Before updating a package (especially new major versions), ensure that there are no breaking changes. Avoid updating all of the packages at once by running npm update because it could lead to breaking changes.

Strapi

This is by far the largest and most important dependency we have. Staying up to date with its releases is important for bug/security fixes and new features. When it comes to actually upgrading Strapi make sure to follow the migration guides!

CI/CD

All of the deployments and releases are handled automatically with GitHub Actions. The workflows implement custom Actions that live in the auto repo.

Contributing

Git Flow

We will follow this git flow for the most part — instead of individual release branches, we will have one to streamline staging deployment

Branches

Protected

Locked for direct commits — all commits must be made from a non-protected branch and submitted via a pull request with one approving review

• master - Production application

Non-protected

Commits can be made directly to the branch

• release - Staging application
• develop - Working version of the application
• feature/<scaffold>-<feature-name> - Based off of develop
  • ex. feature/cms-strapi
• hotfix/<scaffold>-<fix-name> - Based off of master
  • ex. hotfix/client-cors

Pull Requests

Before submitting a pull request, rebase the feature branch into the target branch to resolve any merge conflicts.

• PRs to master should squash and merge
• PRs to all other branches should create a merge commit