https://github.com/akashbhuiyan/microservice-container-orchestration-kubernetes
This project demonstrates microservices orchestration using Kubernetes, enabling seamless deployment, scaling, and management of multiple microservices. It includes Spring Boot microservices deployed in a Kubernetes cluster using Config Server, Service Discovery (Eureka), and Load Balancing.
https://github.com/akashbhuiyan/microservice-container-orchestration-kubernetes
auto-scaling k8s kubernetes microservices-development rollback rollout self-healing
Last synced: about 2 months ago
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This project demonstrates microservices orchestration using Kubernetes, enabling seamless deployment, scaling, and management of multiple microservices. It includes Spring Boot microservices deployed in a Kubernetes cluster using Config Server, Service Discovery (Eureka), and Load Balancing.
- Host: GitHub
- URL: https://github.com/akashbhuiyan/microservice-container-orchestration-kubernetes
- Owner: AkashBhuiyan
- Created: 2025-03-08T12:46:48.000Z (7 months ago)
- Default Branch: main
- Last Pushed: 2025-03-27T22:54:18.000Z (6 months ago)
- Last Synced: 2025-03-27T23:29:10.430Z (6 months ago)
- Topics: auto-scaling, k8s, kubernetes, microservices-development, rollback, rollout, self-healing
- Homepage:
- Size: 176 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# Kubernetes Dashboard
This image shows the Kubernetes Dashboard with deployed microservices.
# Kubernetes Dashboard Documentation
[K8s Dashboard Documentation](https://kubernetes.io/docs/tasks/access-application-cluster/web-ui-dashboard/)
## Helm Installation
[Helm Installation Guide](https://helm.sh/docs/intro/install/)
## Dashboard Installation
```sh
helm upgrade --install kubernetes-dashboard kubernetes-dashboard/kubernetes-dashboard --create-namespace --namespace kubernetes-dashboard
```
## Port Forwarding for Dashboard Access
```sh
kubectl -n kubernetes-dashboard port-forward svc/kubernetes-dashboard-kong-proxy 8443:443
```
## Create Dashboard Admin User
```sh
kubectl apply -f dashboard-adminuser.yaml
```
## Role Binding for Admin User
```sh
kubectl apply -f dashboard-rolebinding.yaml
```
## Create Secret for Admin User
```sh
kubectl apply -f secret.yml
```
## Create Token for Admin User
```sh
kubectl -n kubernetes-dashboard create token admin-user
```
## Create Bearer Token for Access by a Single Token
```sh
kubectl get secret admin-user -n kubernetes-dashboard -o jsonpath="{.data.token}" | base64 -d
```
## Kubernetes Commands
```sh
kubectl get deployments
```
```sh
kubectl get services
```
```sh
kubectl get replicaset
```
```sh
kubectl get pods
```
```sh
kubectl describe pod
```
```sh
kubectl logs
```
```sh
kubectl get pods -o wide
```
## Create Docker Images from the Git Project
Follow the steps mentioned in this link repository to create Docker images for this Kubernetes project from the Git repository: [microservice-architecture-java](https://github.com/AkashBhuiyan/microservice-architecture-java).
## Create Environment Variable in Kubernetes Cluster
```sh
kubectl apply -f configmaps.yml
```
## Order of Deployment
To ensure services are deployed in a structured manner, the following order should be followed:
1. **Keycloak** - Identity and access management service.
2. **ConfigMaps** - Configuration for environment variables and other settings.
3. **ConfigServer** - Centralized configuration management service.
4. **EurekaServer** - Service registry for microservices.
5. **accountsdb** - Database for microservices.
6. **cardsdb** - Database for microservices.
7. **loandb** - Database for microservices.
8. **Accounts** - Microservice handling account-related operations.
9. **Loan** - Microservice managing loan-related functionalities.
10. **Cards** - Microservice handling card-related processes.
11. **Gateway** - API Gateway for routing requests to services.
## Deploying Applications in Kubernetes
To deploy microservices and applications in a Kubernetes cluster, the appropriate YAML manifest files should be created and applied. Each microservice and configuration must be properly defined before deployment.
### Deployment Commands
```sh
kubectl apply -f keycloak.yml
```
```sh
kubectl apply -f configserver.yml
```
```sh
kubectl apply -f eurekaserver.yml
```
```sh
kubectl apply -f accountsdb.yml
```
```sh
kubectl apply -f cardsdb.yml
```
```sh
kubectl apply -f loandb.yml
```
```sh
kubectl apply -f accounts.yml
```
```sh
kubectl apply -f loan.yml
```
```sh
kubectl apply -f cards.yml
```
```sh
kubectl apply -f gateway.yml
```
## Scale Deployments
```sh
kubectl scale deployment accounts-deployment --replicas=2
```
## Retrieves detailed information about the specified Pod and Displays its status, events, conditions, logs, and resource usage.
```sh
kubectl describe pod
```
## Updates the container image and Triggers a rolling update
```sh
kubectl set image deployment/ =:
```
> Example:
> ```sh
> kubectl set image deployment gatewayserver-deployment gatewayserver=akash9229/gatewayserver:v2
> ```
## Rolling Update
```sh
kubectl rollout restart deployment
```
## Check if the new image is being used:
```sh
kubectl get deployment gatewayserver-deployment -o wide
```
## Retrieves and displays Kubernetes events in the default namespace, sorted by creation time (oldest first), helping debug issues and track cluster activities and events.
```sh
kubectl get events -n default --sort-by=.metadata.creationTimestamp
```
## Delete a Pod
```sh
kubectl delete pod
```
## Delete a Deployment
```sh
kubectl delete deployment
```
## Delete a Service
```sh
kubectl delete service
```
## View Logs for a Pod Continuously
```sh
kubectl logs -f
```
## View Resource Utilization of Pods
```sh
kubectl top pod
```
## View Resource Utilization of Nodes
```sh
kubectl top node
```
## Check Running Namespaces
```sh
kubectl get namespaces
```
## Get All Resources in a Namespace
```sh
kubectl get all -n
```
## Apply All Configurations in a Directory
```sh
kubectl apply -f ./k8s/
```
## Troubleshooting: Debug a Failing Pod
```sh
kubectl exec -it -- /bin/sh
```
## Restart a Pod
```sh
kubectl delete pod --grace-period=0 --force
```
## Check the Current Context
```sh
kubectl config current-context
```
## Switch Kubernetes Contexts
```sh
kubectl config use-context
```
## List Available Kubernetes Contexts
```sh
kubectl config get-contexts
```
## Create a New Kubernetes Context
```sh
kubectl config set-context --cluster= --user= --namespace=
```
## Delete a Kubernetes Context
```sh
kubectl config delete-context
```
## Delete All Kubernetes Contexts
```sh
kubectl config delete-context
```
## List All Kubernetes Contexts
```sh
kubectl config get-contexts
```
## Create a New Kubernetes Cluster
```sh
kubectl config set-cluster --server= --certificate-authority=
```