https://github.com/ikauematos/microservices-ecommerce-example

Hello everyone, how are you today, I came to share an application that helped me improve my knowledge in microservices using spring boot and other tools such as kurbenetes, simulating the scaling of the application and learning the fundamental concepts
https://github.com/ikauematos/microservices-ecommerce-example

java microservice

Last synced: 4 days ago
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Hello everyone, how are you today, I came to share an application that helped me improve my knowledge in microservices using spring boot and other tools such as kurbenetes, simulating the scaling of the application and learning the fundamental concepts

• Host: GitHub
• URL: https://github.com/ikauematos/microservices-ecommerce-example
• Owner: iKaueMatos
• Created: 2024-04-28T23:52:58.000Z (7 months ago)
• Default Branch: microservices
• Last Pushed: 2024-04-29T00:58:30.000Z (7 months ago)
• Last Synced: 2024-04-30T00:38:56.239Z (7 months ago)
• Topics: java, microservice
• Language: Java
• Homepage:
• Size: 71.3 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Spring boot and Microservice with Kubernates 

Spring demo with Microservice and Kubernetes

## Running kubernates dashboard

- kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/v2.5.0/aio/deploy/recommended.yaml

- kubectl proxy

- Get token : kubectl -n kubernetes-dashboard create token admin-user

## Understanding building individual Microservice

Each microservice contains pom.xml. Before building make sure the docker hub credentials are setting settings.xml file.

To run only build : mvn clean install

To build and push to docker : mvn clean install jlib:build

## Applying kubernates configuration to make pod running.

Go to k8s directory which contains 

- Apply config maps first : kubectl apply -f generic-config-map.yaml

- Setting up mysql pod : kubectl apply -f mysql.yaml

This yaml contains mysql password as well , you can use secrets/config for passwords too.

- Set up zipkin : kubectl apply -f zipkin.yaml

Access zipkin dashboard with http://localhost:9411 which was exposed using loadbalancer

- Set up service registry pod : kubectl apply -f service-registry-deployment.yaml

- Set up config server pod : kubectl apply -f config-service-deployment.yaml

- Set up cloud gateway pod : kubectl apply -f cloud-gateway-deployment.yaml

- Set up other microservices pod : kubectl apply -f payment-service-deployment.yaml/order-service-deployment.yaml/product-service-deployment.yaml

## Related to OKTA Configuration

First create new application in okta . Application type should be open id application.

Authroization server has configuration related to access token and refresh token validity. 

Go to security -> API -> default audience to modify access policies and timing.

To get refresh token , we need to ensure we have grant type refresh token for application and also scope is offline_access provided when retriving tokens. Refer application yaml of cloud gateway.