Angular Multi Stack Lab

Content

• 1. Purpose of project
• 2. Managing development
  • Start application stack on virtual servers with live reload
  • Start application stack as Docker background process
  • Stop application stack and cleanup containers and networks
  • Rebuild application stack
• 3. Use Nx to evolve the stack
  • Generate an application
  • Generate a library
  • Development server
  • Code scaffolding
  • Build
  • Running unit tests
  • Running end-to-end tests
  • Understand your workspace
  • Further help
• 4. References

1. Purpose of project

Create a multi stack application using

• Angular as front end client
• Nest as backend rest and push api
• MongoDB as NoSql database
• Nx as monorepo developer tool
• docker-compose to containerize and start/stop the stack (development)
• minikube to containerize and orchestrate the stack (development)

The stack will be deployed to Kubernetes using a cloud privider with DevOps capabilities, e.g:

• Codefresh as CI/CD tool
• DigitalOcean as host provider

2. Managing development

Start application stack on virtual servers with live reload

This is the normal case when developing code. Every code change trigger a rebuild and browser refresh.

npm start

Open browser and navigate to http://localhost:4200

It's also possible to activate debugging when using virtuel servers.

Start application stack as Docker background process

This lets the user test the stack built for production. Note! Everything is built when images are missing.

docker-compose up -d

Open browser and navigate to http://localhost

View container details.

docker ps

Stop application stack and cleanup containers and networks

docker-compose down

Rebuild application stack

docker-compose build --parallel

or open and force a rebuild at the same time

docker-compose up --force-recreate -d

3. Use Nx to evolve the stack

Nx auto generated documentation!

This project was initially generated using Nx, which is a set of Extensible Dev Tools for Monorepos.

Generate an application

Run ng g @nrwl/angular:app my-app to generate an application.

You can use any of the plugins above to generate applications as well.

When using Nx, you can create multiple applications and libraries in the same workspace.

Generate a library

Run ng g @nrwl/angular:lib my-lib to generate a library.

You can also use any of the plugins above to generate libraries as well.

Libraries are sharable across libraries and applications. They can be imported from @mean-devops-lab/mylib.

Development server

Run ng serve my-app for a dev server. Navigate to http://localhost:4200/. The app will automatically reload if you change any of the source files.

Code scaffolding

Run ng g component my-component --project=my-app to generate a new component.

Build

Run ng build my-app to build the project. The build artifacts will be stored in the dist/ directory. Use the --prod flag for a production build.

Running unit tests

Run ng test my-app to execute the unit tests via Jest.

Run nx affected:test to execute the unit tests affected by a change.

Running end-to-end tests

Run ng e2e my-app to execute the end-to-end tests via Cypress.

Run nx affected:e2e to execute the end-to-end tests affected by a change.

Understand your workspace

Run nx dep-graph to see a diagram of the dependencies of your projects.

Further help

Visit the Nx Documentation to learn more.

4. References

• https://minikube.sigs.k8s.io/
• https://github.com/ibenjelloun/chat-room
• https://github.com/kostis-codefresh/nestjs-example
• https://github.com/nodejs/docker-node/blob/master/docs/BestPractices.md