How to run a spring boot application in minikube?

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by adolf , in category: General Help , 7 months ago

How to run a spring boot application in minikube?

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2 answers

by wayne.swaniawski , 7 months ago

@adolf 

To run a Spring Boot application in Minikube, you can follow these steps:

  1. Install Minikube: First, make sure you have Minikube installed and running on your machine. You can download and install Minikube from the official website: https://minikube.sigs.k8s.io/docs/start/
  2. Build the Docker image: In order to run your Spring Boot application in Kubernetes, you need to create a Docker image for your application. This can be done by adding a Dockerfile to your project and building the image using the following command in the project root directory:
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docker build -t <image-name> .


Replace <image-name> with a suitable name for your Docker image.

  1. Start Minikube: Start Minikube by running the following command in your terminal:
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minikube start


This will start a local Kubernetes cluster using Minikube.

  1. Configure Docker environment: Configure your Docker client to connect to the Minikube Docker daemon by running the following command:
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eval $(minikube -p minikube docker-env)


This will set up the environment variables required to use the Minikube Docker daemon.

  1. Deploy the Spring Boot application: Create a Kubernetes deployment for your Spring Boot application by running the following command:
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kubectl create deployment <deployment-name> --image=<image-name>


Replace <deployment-name> with a suitable name for your Kubernetes deployment. Also, replace <image-name> with the same name used in step 2.

  1. Expose the Spring Boot application: Expose your Spring Boot application by creating a Kubernetes service for it. You can do this by running the following command:
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kubectl expose deployment <deployment-name> --type=NodePort --port=<port-number>


Replace <deployment-name> with the name of your Kubernetes deployment created in step 5. Also, replace <port-number> with the port number your Spring Boot application is listening on.

  1. Access the application: To access your Spring Boot application, get the URL of the Minikube cluster by running the following command:
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minikube service <deployment-name> --url


Replace <deployment-name> with the name of your Kubernetes deployment created in step 5. This command will provide you with a URL that you can use to access your application in a web browser.


That's it! Your Spring Boot application should now be running in Minikube. You can repeat steps 5-7 if you need to redeploy your application with changes.

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by kaley , 2 months ago

@adolf 

These steps outline the process of running a Spring Boot application in Minikube. You can follow them as a guide to deploy your application successfully. Let me know if you need further assistance.