https://github.com/hariclerry/udacity-cloud-developer-microservice

A simple cloud application developed alongside the Udacity Cloud Engineering Nanodegree
https://github.com/hariclerry/udacity-cloud-developer-microservice

aws docker expressjs kubernetes microservices nodejs typescript

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A simple cloud application developed alongside the Udacity Cloud Engineering Nanodegree

• Host: GitHub
• URL: https://github.com/hariclerry/udacity-cloud-developer-microservice
• Owner: hariclerry
• Created: 2020-07-07T14:10:36.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2023-01-24T03:17:52.000Z (about 2 years ago)
• Last Synced: 2023-03-04T09:13:03.340Z (almost 2 years ago)
• Topics: aws, docker, expressjs, kubernetes, microservices, nodejs, typescript
• Language: TypeScript
• Homepage:
• Size: 7.06 MB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 60
• Metadata Files:
  • Readme: README.md

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README

        
## Udagram microservice

Udagram is a simple cloud application developed alongside the Udacity Cloud Engineering Nanodegree. It allows users to register and log into a web client, post photos to the feed, and process photos using an image filtering microservice. Following are the services involved in this project:

* “user” - allows users to register and log into a web client, 

* “feed” - allows users to post photos, and process photos using image filtering 

* “frontend” - acts as an interface between the user and the backend-services

* "reverseproxy" - For resolving multiple services running on same port in separate containers

Correspondingly, the project is split into following parts:

1. The RestAPI Feed Backend, a Node-Express feed microservice.

2. The RestAPI User Backend, a Node-Express user microservice.

3. The Simple Frontend - A basic Ionic client web application which consumes the RestAPI Backend.

4. Nginx as a reverse-proxy server, when different backend services are running on the same port, then a reverse proxy server directs client requests to the appropriate backend server and retrieves resources on behalf of the client.  

### Dependencies

- Node/Express

- ionic

- AWS credentials and setup to connect to the postgres database

### Exercise Instructions

Follow the below instructions:

#### Instruction 1 - Clone the GitHub repo

1. Clone the following Git repository - https://github.com/hariclerry/udacity-cloud-developer-microservice

2. To run the application in a docker container, cd into course-03/exercises/udacity-c3-deployment/docker directory and follow the below steps;

    - Build docker images run `docker-compose -f docker-compose-build.yaml build --parallel`

    - To pull docker images from docker hub run `docker-compose -f docker-compose-build.yaml pull`

    - To start the container run `docker-compose up`

    - Navigate to the browser and run `http://localhost:8100` to see the Udagram application up and running 

    - To remove the container, run the following commands;

        `docker container ls

        docker container kill 

        docker container prune` 

 3. To run the application in a a kubernetes cluster, cd into course-03/exercises/udacity-c3-deployment/k8s directory and follow the below steps;

    - Run all deployments in the k8s, for example `kubectl apply -f reverseproxy-deployment.yaml`

    - Run all services in the k8s, for example `kubectl apply -f reverseproxy-service.yaml`

    - To start the backend services run `kubectl port-forward service/reverseproxy 8080:8080`

    - To start the frontend app run `kubectl port-forward service/frontend 8100:8100`

    - Navigate to the browser and run `http://localhost:8100` to see the Udagram application up and running 

    - To redeploy changes run `kubectl apply -f .yaml` with the name of the deployment

    - To remove a deployment, run, for example `kubectl delete reverseproxy-deployment.yaml`

    - To remove a service, run, for example `kubectl delete svc reverseproxy`