This tutorial walks you through the steps of creating a simple Spring Boot web application with NGINX and MongoDB running inside Docker containers
What you'll need
- Docker CE
Stack
- Docker
- Spring Boot
- MongoDB
- 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
The MongoClient bean is auto-configured and provided by Spring Boot
FreeMarker View template
Application Configuration
spring.data.mongodb.host is a common property of Spring Boot auto-configuration for MongoDB
hk-mongodb is the Docker Compose service name of MongoDB as we are going to run this Spring Boot application and MongoDB server inside Docker containers. You can find below the docker-compose.yaml file for more details
Dockerize
Dockerfile of Spring Boot web application
NGINX config file
Docker Compose
Test
- Run command
docker-compose up - Access to
http://localhost