Ticketing App

A simple but scalable ticketing app built based on the Microservices Architecture and deployed to the Google Cloud Platform.

Tech Stacks

• NodeJS
• ExpressJS
• React
• NextJS
• Docker
• Kubernetes
• NGINX Ingress Controller
• Skaffold
• MongoDB
• NATS streaming server

Setting up your dev enviroment

Docker

Before you attempt to clone the repo and follow the next steps on how to run the app, ensure you have Docker locally installed on your machine. If not, follow this guide on how to set up Docker on your machine.

Run the docker command to ensure that docker is successfully installed. If you get this error 'docker' is not recognized as an internal or external command, try to reinstall docker correctly or make sure it is added to your path.

Kubernetes

Docker Desktop includes a standalone Kubernetes server that runs on your local host, so that you can test deploying your Docker workloads on Kubernetes. To enable Kubernetes on your Docker desktop;

• Open Docker desktop.
• Click settings.
• Under settings select Kubernetes.
• Check Enable Kubernetes.
• Click Apply and Restart.

Run the kubectl command to ensure that docker is successfully installed. If you get this error 'kubectl' is not recognized as an internal or external command, try to reinstall Kubernetes correctly or make sure it is added to your path.

Skaffold

Install and set up Skaffold using this guide on how to get started with Skaffold. Run the skaffold command to ensure that skaffold is successfully installed. If you get this error 'skaffold' is not recognized as an internal or external command, try to reinstall skaffold correctly or make sure it is added to your path.

Google Cloud Platform

• Sign Up for a GCP account using this link https://cloud.google.com/free.
• Go to the GCP console and create a new project ticketing-app.
• In your project, scroll and select the Kubernetes Engine option on the menu.
• Click on Create cluster to create a kubernetes cluster for your app. Click create at the bottom to finally create your cluster.
• Install the google cloud sdk using this guide https://cloud.google.com/sdk/docs/quickstart.
• Initialize and configure the google cloud sdk; first sign in with gcloud auth login. A little window will appear in your browser prompting you to choose the google account you prefer to use to sign in. Sign in with the account you used to create your GCP account.
• Run gcloud container clusters get-credentials <cluster-name> to install the GPC context locally on Docker Desktop.

Ingress-Nginx

Follow this guide to set up ingress-nginx for your GCP project.

ticketing.dev domain

To ensure that everytime we try to visit ticketing.dev we navigate to the ticketing.dev on our machine rather than real url on the internet, open your local host file with your favorite editor in adminstrator mode: for example; C:\Windows\System32\Drivers\etc\hosts on windows or etc/hosts on mac.

Click Kubernetes Engines on your project menu, select Services and Ingress. Under services and ingress look for ingress-nginx-controller, copy the IP Address and paste it to your hosts file, then append the domain name in this format.

31.79.218.200 ticketing.dev

Save the file.

Running the app

Clone the repo.

git clone https://github.com/mwinel/ticketing-app.git

CD into the different services one at a time. For example;

cd auth

or

cd tickets

Install dependancies.

npm install

After all dependencies in all services have been installed cd to the root folder and run;

skaffold dev

Finally navigate to ticketing.dev in your browser to test this app out.

Running Unit Tests

CD into a given service such as auth or tickets and run the following command;

npm run test

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

Please make sure to update tests as appropriate.

License

MIT