Kube By Example - Spring Boot on Kubernetes

Name: Kube By Example - Spring Boot on Kubernetes
Rating: 4.6 (182 reviews)

Learn How to Deploy Spring Boot on Kubernetes

Created byJohn Thompson • 500,000+ Enrollments Worldwide, Spring Ahead Code Academy

Last updated 5/2022

English

English [Auto],

What you'll learn

Learn How to Deploy a Spring Boot Application on Kubernetes
Create a Kubernetes Service for Your Spring Boot Application
Start and Stop Your Spring Boot Application on Kubernetes
Configure Spring Boot Actuator for Kubernetes

Course content

2 sections • 16 lectures • 51m total length

Course Introduction1:19
Introduction to Kubernetes by Example3:13
Explore Kubernetes by example (KB E) through hands-on learning paths in Kubernetes fundamentals, container fundamentals, and Spring Boot with Kubernetes, from Docker-based apps to microservices on Kubernetes.
Setting up Your Development Environment3:15
Set up your development environment for Java and Kubernetes by installing a supported OS, at least 16 GB RAM, JDK 11+, Maven, Docker, and connecting to a Kubernetes cluster.
Enable Kubernetes Docker Desktop3:31
Enable Kubernetes with Docker Desktop by turning on the Kubernetes tab, applying and restarting to launch a single-node cluster on macOS or Windows, and switch contexts via kubectl.

Introduction0:51
Deploy a Spring Boot application on Kubernetes, configure a service to access the running app, and work through deploying a containerized Spring Boot app in a Kubernetes environment.
Create Deployment4:50
Deploy a Spring Boot rest application to Kubernetes by generating a deployment YAML with kubectl dry-run and applying it to run a single pod from a Docker Hub image.
Create Service2:55
Create a cluster IP service for deployment by using kubectl to generate and apply a service YAML, exposing port 8080 for the Tomcat app and linking via the deployment selector.
Port Forwarding4:18
Use port forwarding to tunnel local requests to a Kubernetes service, enabling testing with curl and Postman.
Terminating Services and Deployments2:12
Learn how to clean up a Kubernetes cluster by deleting services and deployments with kubectl, ensuring no remaining resources after development testing.
Exposing Services3:47
Expose a Spring Boot application on Kubernetes using a node port service, mapping a local host port to the cluster, enabling direct access without tunneling.
Accessing Logs2:51
Learn how to access and monitor Spring Boot app logs on Kubernetes using kubectl logs, with tail and follow options to stream updates.
Setting Environment Variables4:52
Readiness Probe With Spring Boot Actuator5:09
Enable a readiness probe for Spring Boot on Kubernetes by configuring Spring Boot actuator environment properties and a Kubernetes readiness probe to the actuator health readiness URL.
Liveness Probe with Spring Boot Actuator4:27
Enable liveness and readiness probes for a Spring Boot app on Kubernetes using Actuator health endpoints and environment variables, ensuring the service stays alive and ready on port 8080.
Configure Spring Boot for Graceful Shutdown3:49
Enable a graceful shutdown in Spring Boot and coordinate with Kubernetes to give in-flight work time to finish, using server.shutdown.graceful and a 10-second shutdown window.
Bonus Lecture0:20

Requirements

Basic Spring Boot and Java Experience
Basic Knowledge of Docker
Basic Linux Command Line Knowledge

Description

Kubernetes is a container orchestration system used to automate software deployment, scaling and management.

Effectively, Kubernetes is a management tool direct the running of Docker images.

Kubernetes is actually much more than just a tool to run a Docker image.

However in this course, we will be running a single Docker image under Kubernetes. You will learn how to deploy a simple Spring Boot application (in a Docker image) under Kubernetes.

The course uses a publically available Docker Image. The image contains a Spring Boot Application, which exposes a simple RESTful API.

After learning how to set up a local Kubernetes environment for development, you will learn how to create a Kubernetes Deployment. A Deployment is how Kubernetes defines a Docker container to run.

Next you will learn how to configure a Kubernetes Service. A Service is how you direct Kubernetes to expose deployments to network resources.

Spring Boot has added features to support running in a containerized environment. Two of these are Readiness and Liveness probes.

The Readiness probe accounts for startup period of an application. Once the application has started and is ready for work, the Readiness probe will return a positive result.

The Liveness probe returns a positive result while the application is in a healthy state. Kubernetes can monitor the Liveness probe for application health.

Finally in the course, you will learn to configure a graceful shutdown. This allows the Spring Boot application to complete any inprocess transactions before the container is terminated.

If you're looking to get started running your Spring Boot applications under Kubernetes enroll today!

Who this course is for:

Java and Spring Developers who wish to deploy their Spring Boot Application under Kubernetes

Kube By Example - Spring Boot on Kubernetes

What you'll learn

Explore related topics

Course content

Introduction4 lectures • 11min

Deploy Spring Boot on Kubernetes12 lectures • 40min

Requirements

Description

Who this course is for: