An app for customers to be able to provide review about the products listed.

Entire application is divided in to 3 services - Frontend (React), REST API (Python Flask) and Database (Postgres).

for each services resides in services folder. Each services has got its own docker file inside which can be used to generate a docker image. To build an image and spin up you can use the following command:

docker build -t ireview-frontend:1.0.0 -f ./services/frontend/Dockerfile .

docker build -t ireview-api:1.0.0 -f ./services/api/Dockerfile .

docker build -t ireview-db:1.0.0 -f ./services/db/Dockerfile .

There is a docker-compose file created in order to spin up the entire application locally to test it before deploying it in to kubernetes. docker-compose.yml

Run the following command to spin up the application locally via docker-compose:

docker-compose up -f docker-compose.yaml

Before creating helm charts, we have created these kubernetes artifacts separately for each services in following folders: ./architecture/frontend/old/ ./architecture/api/old/ ./architecture/db/old/

In order to install via above artifacts, you need to run one by one all the files like following example:

kubectly apply -f deployments.yaml

In order to deploy the services in Kubernetes with one single commands, we have created helm charts for each services. They can be found in following folders ./architecture/frontend/helm/ ./architecture/api/helm/ ./architecture/db/helm/

This is the single command required in order to install the entire application. > sh install.sh

Above script calls following helm charts in order to deploy them in kubernetes inside a namespace called ireview-app

Use following command to create a new namespace before running the following commands:

kubectl create namespace ireview-app

helm install postgres ./architecture/db/helm/postgres/ -n ireview-app

helm install api ./architecture/api/helm/api -n ireview-app

helm install frontend ./architecture/frontend/helm/frontend -n ireview-app

This is the single command required in order to install the entire application. > sh uninstall.sh

Above script calls following helm charts in order to deploy them in kubernetes inside a namespace called ireview-app

helm uninstall frontend -n ireview-app

helm uninstall api -n ireview-app

helm uninstall postgres -n ireview-app

For a new version of the software following command is used to upgrade the services:

$ kubectl upgrade frontend frontend/ -n ireview-app

$ kubectl upgrade api api/ -n ireview-app

$ kubectl upgrade db db/ -n ireview-app

In order to scaleup each of our services, you can use the following command to increase the number of replicas:

$ kubectl scale --replicas 2 deployment/frontend -n ireview-app

$ kubectl scale --replicas 3 deployment/api -n ireview-app

$ kubectl scale --replicas 2 deployment/postgres -n ireview-app