Prattle

Prattle is an anonymous chat app and a great way to meet new people. Prattle will pick someone random for you and create a private chat session. If you prefer to add your interests, Prattle will look to connect you with someone who shares some of your interests.

Technologies Used:

• Node.js (Express)
• React+Redux
• MongoDB
• Redis
• Nginx
• Docker
• Kubernetes

To run the app in development mode :

• Register localhost domain in Google reCaptcha v3 site here and copy your Site key and Secret key. Create a new file in the project root directory .env.front.dev with following content :

  REACT_APP_GOOGLE_SITE_KEY="$YOUR_GOOGLE_SITE_KEY"  
  

• Create another file in the project root directory .env.backend.dev with the following content :

  NODE_ENV=development    
  REDIS_URL="redis://redis-dev-server"    
  MONGODB_URL="mongodb://root:example@mongo-dev-server:27017/"    
  GOOGLE_SECRET_KEY="$YOUR_GOOGLE_SECRET_KEY"  
  

• Run the following command in the root directory to start up the development server :

  docker-compose -f docker-compose.dev.yml up --build
  

For Production build and deployment :

• Create the following files in /k8s directory :

  • backend-env-secrets.yml

    kind: Secret  
    metadata:  
      name: backend-env-secrets  
    type: Opaque  
    stringData:  
      REDIS_URL: "redis://username:password@host:port"  
      MONGODB_URL: "mongodb://username:password@host/"  
      GOOGLE_SECRET_KEY: "$YOUR_GOOGLE_SECRET_KEY"```
    
    

• Update the image names of mysecrets-backend and nginx services in docker-compose.yml and build the images and push it to your docker repository using the following commands

  docker-compose build --pull
  docker-compose push
  

• Set your gcloud project id using the following command :

  gcloud config set project $PROJECT_ID
  

• Generate kubectl config using the following command :

  gcloud container clusters get-credentials $CLUSTER_NAME --zone $ZONE --project $PROJECT_ID
  

• Create cluster role binding to use ingress-nginx using the following command:

  kubectl create clusterrolebinding cluster-admin-binding \
  --clusterrole cluster-admin \
  --user $(gcloud config get-value account)
  

• Install ingress-nginx :

  kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v1.3.0/deploy/static/provider/cloud/deploy.yaml
  

• Install cert-manager for SSL support :

  kubectl apply -f https://github.com/cert-manager/cert-manager/releases/download/v1.9.1/cert-manager.yaml  
  

• To deploy to gcloud, run the following command from root directory :

  kubectl apply -f ./k8s
  

• You should see your resources created and the application running. To access the application, simply get the ingress service IP Address and use it in browser.