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https://github.com/microservices-suite/node-microservices-suite

This repository is a nodejs based microservices built with the monorepo strategy
https://github.com/microservices-suite/node-microservices-suite

automation chaos-engineering containerization docker-compose dry horizontal-scaling kubernetes microservices monorepo orchestration saas

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This repository is a nodejs based microservices built with the monorepo strategy

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README

        

# Microservices Suite 🦧

## Overview

Welcome to the πŸ“¦ [Microservices](https://drive.google.com/file/d/1Noc_6WVe0CmzynnuURexm7MCv75OUAuQ/view?usp=drive_link) Suite project! This suite is a collection of Node.js microservices built using the 🦧 [mono-repo]() strategy and leveraging the [yarn workspaces](https://classic.yarnpkg.com/lang/en/docs/workspaces/) concept. Each microservice runs in its isolated Docker `container`, and `Kubernetes` orchestrates the deployment, providing scalability and efficiency.
To easily work with a `@microservices-suite monorepo` you need to install [Suite CLI](https://www.npmjs.com/package/@microservices-suite/cli). With `Suite` you can easily scaffold,manage and automate your monorepo in development, CI as well as production. Check the installation guidelines in the `README.md` section of the `.suite-cli` root.

## Project file structure
```sequence
β”œβ”€ node-microservices-suite
β”‚ β”œβ”€ .suite-cli/
| β”‚ β”œβ”€ cli/
| β”‚ β”‚ β”œβ”€ scripts/
| β”‚ β”‚ β”œβ”€ cli.js
| β”‚ β”‚ β”œβ”€ package.json
| β”‚ β”‚ β”œβ”€ README.md
β”‚ β”œβ”€ gateways/
| β”‚ β”œβ”€ apps/
| β”‚ | β”œβ”€app-1/
| β”‚ β”‚ | β”œβ”€ data/
| β”‚ β”‚ | β”œβ”€ krakend/
| β”‚ β”‚ | β”œβ”€ webserver/
| β”‚ β”‚ | | β”œβ”€Dockerfile
| β”‚ β”‚ | | β”œβ”€Dockerfile.dev
| β”‚ β”‚ | | β”œβ”€webserver.conf
| β”‚ β”‚ | β”œβ”€ docker-compose.yml
| β”‚ β”‚ | β”œβ”€ docker-compose.dev.yml
| β”‚ β”‚ | β”œβ”€ README.md
β”‚ β”œβ”€ graphql/
| β”‚ β”œβ”€ app-1/
| β”‚ β”‚ β”œβ”€ apollo-server
| β”‚ β”‚ β”œβ”€ README.md
β”‚ β”œβ”€ k8s/
| β”‚ β”œβ”€ service-1/
| β”‚ β”‚ β”œβ”€ cluster-ip-service.yml
| β”‚ β”‚ β”œβ”€ cluster-deployment.yml
| β”‚ β”‚ β”œβ”€ ingress-service.yml
| β”‚ β”‚ β”œβ”€ README.md
| β”œβ”€ microservices/
| β”‚ β”œβ”€ service-1/
| β”‚ β”‚ β”œβ”€ src
| β”‚ β”‚ β”œβ”€ .env
| β”‚ β”‚ β”œβ”€ .env.dev
| β”‚ β”‚ β”œβ”€ app.js
| β”‚ β”‚ β”œβ”€ Dockerfile
β”œβ”€ β”‚ β”‚ β”œβ”€ Dockerfile.dev
| β”‚ β”‚ β”œβ”€ ecosystem.config.js
| β”‚ β”‚ β”œβ”€ index.js
| β”‚ β”‚ β”œβ”€ package.json
| β”‚ β”‚ β”œβ”€ task.json
| β”œβ”€ shared/
| β”‚ β”œβ”€ library-1/
| β”‚ β”‚ β”œβ”€ APIError.js
| β”‚ β”‚ β”œβ”€ catchAsync.js
| β”‚ β”‚ β”œβ”€ index.js
| β”‚ β”‚ β”œβ”€ package.json
| β”‚ β”‚ β”œβ”€ pick.js
| β”‚ β”‚ β”œβ”€ README.md
| β”‚ β”‚ β”œβ”€ validate
β”‚ β”œβ”€ tests/
| β”‚ β”œβ”€ service-1/
| β”‚ β”‚ β”œβ”€ e2e/
| β”‚ β”‚ β”œβ”€ integration/
| β”‚ β”‚ β”œβ”€ snapshot/
| β”‚ β”‚ β”œβ”€ unit/
| β”‚ β”‚ β”œβ”€ README.md
| β”œβ”€ .gitignore
| β”œβ”€ .npmrc
| β”œβ”€ .yarnrc.yml
| β”œβ”€ docker-compose.yml
| β”œβ”€ package.json
| β”œβ”€ production.yml
| β”œβ”€ README.md
| β”œβ”€ yarn.lock
```
## Monorepo strategy benefits for microservices:

- **Enforce [DRY](https://japhethobala.com/posts/technical/single-responsibility/) Principles:**
- [@Japheth Obala](https://github.com/jobala) the Prophet 😎 has done a sleek job demystifying [πŸ‘‰SOLID & best practice here](https://japhethobala.com/).
- Collocating code encourages code sharing.
- Reduce duplication πŸ‘‰[read about SOLID here](https://japhethobala.com/)
- Save time by building on existing boilerplate or reusable functionality.

- **Collaboration:**
- Working within the same repository facilitates learning from peers.
- Enables the adoption of good coding practices and the avoidance of bad ones.

- **Centralized Development Chores:**
- Manage common files like `.gitignore` centrally from the root directory
- Reduce unnecessary repetitions in the codebase.

- **Easily Integrate Development Automation:**
- Task runner configurations and docker-compose can be managed from the root directory.
- simplify the automation of repetitive workflows.

- **Code Sharing Anywhere:**
- Publish and import organization-scoped libraries from the npm registry with
```bash
yarn release
yarn add <@microservices-suite/foo>
yarn workspace @microservices-suite/ add @microservices-suite/
```
- Using `Suite CLI` you could achieve the results with the following commands
```bash
suite release
suite add <@microservices-suite/foo>
suite -W add @microservices-suite/
```

- **Easily Containerize and Scale:**
- Decouple every microservice to scale individually.
- Leverage the [no-hoist yarn workspace](https://classic.yarnpkg.com/blog/2018/02/15/nohoist/) feature and custom scripts to enable efficient packaging of microservices into isolated containers.

## Technologies Used

- **Yarn Workspaces:**
- Simplifies managing multiple packages within a single repository.
- Encourage code sharing & reduce duplication
- Make it easier to handle dependencies and scripts.

- **Docker Containers:**
- Provides lightweight, portable, and self-sufficient containers for packaging and deploying microservices.

### **Alpine** Images

- Alpine images are very minimalistic Linux minidistros that cost you only `~5MB` of real estate. That is why they are used inside your favourite `smart watch ⌚️`.
- One objective of this project is to `optimize image builds for Continuous Integration (CI)` and `production` environments through the utilization of the slimmest possible images so that you dont bloat ⚠️ your machine in dev and we have a lean server in prod.

#### Key Strategies:

- **Multi-Stage Builds:**
- We employ simple Docker constructs like `multi-stage builds` to optimize our image size.

- **Hoisting and Symlinking:**
- While these practices promote the `DRY` (Don't Repeat Yourself) principle, they pose a threat to our objective of achieving minimized images. To mitigate this, we leverage `no-hoisting and symlinked libraries`
- selectively copying only the `node_modules` generated by `non-hoisted workspaces`.
- These are optimized to consume less disk space, ensuring that only the essential shared libraries required by a specific service are included, thereby maintaining the slim profile of our images.
- The service itself will build her core node modules normally inside the dockerfile from her `package.json`

### Docker & Node Best Practices

- For an in-depth guide and best practices on using Docker with Node.js, visit the [Docker & Node Best Practices](https://github.com/nodejs/docker-node/blob/main/docs/BestPractices.md) repository.

### Kubernetes (k8s)

- Kubernetes offers automated deployment, scaling, and management of containerized applications, ensuring reliability and scalability.

# Getting Started

Welcome to our project! To ensure a smooth setup and development experience, ensure you have the following tools installed on your machine:

- **Docker:**
- For containerization and managing containerized applications.
- πŸ‘‰ [Install docker here](https://docs.docker.com/engine/install/).
- We love πŸ’š [alpine images](https://alpinelinux.org/) .
- You can read about the specific flavor [here](https://github.com/nodejs/docker-node/blob/main/README.md#how-to-use-this-image)
- **Suite CLI:**
- For easy project scaffolding task automation and workflow management.
- Install `suite`: check the installation guidelines below.
- **Node.js:**
- As the runtime environment for executing the application code.
- πŸ‘‰ [Download LTS version here](https://nodejs.org/en/download)
- At the project create `.env`, `.env.dev` and `.env.staging` files and copy `environment variables` from the `.env.example` file

## Running Components

- A `component` in our `suite` jargon refers to a `service` or `application`. With `@microservices-suite` you can create 1 or more services as well as applications.
- Suite is `component-scoped`, giour strategy that enhances modularity and at the same time makes using the monorepo intuitive. Its is inspired by `Single Responsibility` principle.
- Apps are simply `cohessive` microservices `aggregated` under the `./gateway/apps/` directory to create decoupled services to serve your client. An example is an `Ecommerce app`. This app can have `customer, supplier,orders and products` microservices under the `./microservices/` directory. These microservices are then referenced in `docker-compose` file definitions placed under the `./gateway/apps/ecommerce-app/` directory. Other apps can be added to the `./gateway/apps` directory with their `docker-compose` definitions and `api-gateway configs(nginx/appache)`.
- Suite scales applications with `kubernetes` and app-scoped `k8s` configs are located under the `./k8s/` directory. Therefore the kubernetes configurations for our Ecommerce app will be located at `./k8s/ecommerce-app`
- [Suite CLI](https://github.com/microservices-suite/node-microservices-suite/tree/main/.suite-cli/cli) streamlines the process of starting a service(s) or app(s) in `development` & `production`. Follow these steps to get your environment up and running:
- You can derive the `service_name` or `app-name` from the workspace name found in the `package.json "name": ` property e.g
```json
"name": "@microservices-suite/"
```
- To run an app in either modes [dev,staging,prod]:
- If -k or --kubectl flag is specified `suite` spins your app with `kubectl` . You need to have [minikube](https://minikube.sigs.k8s.io/docs/start/) installed and [kubectl](https://kubernetes.io/docs/tasks/tools/). Otherwise defaults to docker compose
- If -m or --mode is specified you need to have a `docker-compose.` specified but this is not necessary with kubectl since we only run the development version of kubectl.
```bash
suite start [--kubectl,--mode]|[-km]
```
- This command uses docker-compose to start your app(s)
- Suite will handle the setup, ensuring your app is ready.

### Running Services with -v --vanilla
- If you prefer not to use Docker, you can use the `-v,--vanilla` command to start service(s) using node `PM2` engine in production or `nodemon` in any other mode:
```bash
suite start [--vanilla,--mode]|[-vm]
```

### Using Docker-Compose Directly
- Should you need to use docker-compose directly for more control over the container orchestration, you can utilize the standard commands provided by Docker:
- You can replace the yml files with your compose file path and production.yml has been used as an overide. There are many ways to kill the cat in dockers world 😎.
```bash
docker-compose -f docker-compose.yml -f production.yml up --build -d
docker-compose down
```

## Contributing

Contributions are welcome! If you'd like to contribute to the Microservices Suite project, please follow these guidelines:

1. Fork the repository and clone it to your local machine.
```bash
git clone https://github.com/microservices-suite/node-microservices-suite.git
```
2. Create a new branch for your feature or bug fix:
```bash
git checkout -b feat/
```
3. Make your changes and make sure that tests pass.

4. Before committing your changes, make sure it follows the [conventional commits](https://www.conventionalcommits.org/en/v1.0.0/) specification:

- We recommend you use the [Better Commits CLI](https://github.com/Everduin94/better-commits) tool. It is a CLI for writing better commits, following the conventional commits specification.

5. Push to the branch:
```bash
git push origin feat/
```
6. Submit a pull request detailing your changes.

7. Please ensure that your pull request adheres to the project's code style and conventions.

## License

- This project is licensed under the [MIT License](./LICENSE). Feel free to use, modify, and distribute this code for any purpose.

## Acknowledgements

We would like to thank the developers and contributors to the following technologies used in this project:

- Yarn
- [Yarn workspace](https://classic.yarnpkg.com/lang/en/docs/cli/workspace/).
- Also checkout [yarn workspaces](https://classic.yarnpkg.com/en/docs/cli/workspaces)
- [No-hoist](https://classic.yarnpkg.com/blog/2018/02/15/nohoist/)
- βš“οΈ Docker
- [βš“οΈvanilla docker (CLI)](https://docs.docker.com/reference/cli/docker/)
- [docker-compose (manage a multi-container application)](https://docs.docker.com/compose/)
- 🎑 Kubernetes
- [minikube (local kubernetes for development only!)](https://minikube.sigs.k8s.io/docs/start/)
- [k8s](https://kubernetes.io/docs/home/)
- [k8s in the cloud,GKE,EKS and more...](https://kubernetes.io/docs/setup/production-environment/turnkey-solutions/)
- Curated Resouces(by [email protected])
- πŸ‘‰ Read [Book by Sam Newman](https://samnewman.io/books/building_microservices/)
- πŸ›³οΈ [containerization, orchestration & CICD](https://drive.google.com/drive/folders/1_GswpJ5jEm27suzglI-wCDomLIuOSvea?usp=drive_link)
- πŸ“¦ [microservices](https://drive.google.com/drive/folders/1ObxIg5qyoIij-l9cUovRmTA3Ds_fSigE?usp=drive_link)
- 🦧 Monorepos
- πŸ‘‰ Monorepo is not [code collocation](https://nx.dev/concepts/more-concepts/why-monorepos)
- πŸ‘‰ Read [Medium article here](https://medium.com/@avicsebooks/monorepo-2edb5a67517d)
- For design patterns,best practice and DSA checkout this sheet on the [Resources sheet](https://docs.google.com/spreadsheets/d/1aeci3pqPLG2Uwa42SqSrwgJmqM3A_u7DgkmG7IjZ1Ys/edit#gid=643790244)