Deploying using Docker Desktop by enabling Kubernetes

Prerequisites

Install helm and enable the Kubernetes engine in the Docker Desktop.

Follow below steps to deploy the ZIETrans application in Kubernetes:

1. Docker Image Creation
   1. Create a ZIETrans project and export it as an ear.
   2. Refer to this docker file which deploys a sample ZIETrans application in Liberty server.
   3. c. Build the Image using the docker build command.

      docker build -t zietransimage .

2. Helm Chart Deployment
   1. Create the helm chart by using below helm create command and modify acccording to your requirement or download the sample chart from here

      helm create zietrans

   2. Navigate to the downloaded helm chart using file explorer and modify the chart according to your requirement. In values.yaml, add the Docker image.

      Configuration:

      Table 1.

      Parameter	Description	Default
      image.repository	ZIETrans docker image name	zietransimage
      image.imageTag	Docker image tag	latest
      image.pullpolicy	Kubernetes imagePullPolicy value	IfNotPresent
      serviceType	Type of the service	LoadBalancer
      servicePort	Port number to be exposed	9080
      replicas	Kubernetes replica count	1
      Resources Limits:                                             CPU:                                             Memory:	Configure the CPU,Memory resources as per the requirement.	Limits: limits CPU:1                                             Memory:512Mi
      StorageClassName	Name of the storage class	hostpath

   3. Install the helm chart using helm install command.

      helm install zietrans .

   4. The ZIETrans application is deployed and access it using the url:

      http://localhost:9080/<zietransapp>

      Note:

      Below are the few use full commands to interact with the ZIETrans Deployment

      Table 2.

      Action	Command
      To list the releases that are deployed or failed	helm ls
      To get all the information about deployment	kubectl get all
      To get the pod details	kubectl get pod
      To get the Services details	kubectl get svc
      To get the Persistent Volume details	Kubectl get pvc, Kubectl get pv

   For more information on Kubernertes commands, refer to Kubernetes Cheat Sheet and for Helm commands, refer to Helm Commands.