This tutorial walks you through the steps of creating a simple Spring Boot web application with NGINX and MySQL running inside Docker containers
What you'll need
- Docker CE
Stack
- Docker
- Spring Boot
- MySQL
- NGINX
- Maven
Init project structure and dependencies
Project structure
├── app
│ ├── src
│ │ └── main
│ │ ├── java
│ │ │ └── com
│ │ │ └── hellokoding
│ │ │ └── springboot
│ │ │ ├── IndexController.java
│ │ │ └── WebApplication.java
│ │ └── resources
│ │ ├── static
│ │ │ ├── css
│ │ │ │ └── main.css
│ │ │ └── js
│ │ │ └── main.js
│ │ ├── templates
│ │ │ └── index.ftl
│ │ └── application.properties
│ ├── Dockerfile
│ └── pom.xml
├── nginx
│ └── conf.d
│ └── app.conf
└── docker-compose.yaml
Application dependencies
Define Controller, View Template and Config
Controller
FreeMarker View template
Application Configurations
spring.datasource.* are common properties of Spring Boot Data Source auto-configuration for MySQL
In the datasource url property, hk-mysql is the Docker Compose service name of MySQL as we're going to run this Spring Boot application and MySQL server in the Docker containers. You can find it in the docker-compose.yaml file below
Dockerize
Dockerfile of Spring Boot web application
NGINX config file
Docker Compose
Test
- Run command
docker-compose up - Access to
http://localhost