Docker has revolutionized the way we develop and deploy applications. Learn how to containerize your Java applications for consistent environments.

Creating a Dockerfile

FROM openjdk:11-jre-slim
WORKDIR /app
COPY target/app.jar app.jar
ENTRYPOINT ["java", "-jar", "app.jar"]

Docker Compose

Use Docker Compose to run multiple containers together:

version: '3'
services:
  app:
    build: .
    ports:
      - "8080:8080"
  db:
    image: postgres:latest
    environment:
      POSTGRES_PASSWORD: password

Docker simplifies deployment and ensures consistency across different environments.