Spring Boot and Nginx integration

Sam picture Sam · May 5, 2016 · Viewed 19.6k times · Source

In my project, web app is developed using Spring boot with default tomcat server. I am using NGINX as load-balancer and have configured my spring-boot-web-app in NGINX configuration as follows:

location /spring-boot-web-app {
     proxy_pass http://spring-boot-web-app/
}

http {
    upstream /spring-boot-web-app {
        server <IP_of_spring_boot_app>:<Port_of_spring_boot_app>
    }
}

Now lets say NGINX IP and port as nginx_ip and nginx_port respectively. Also working URL for my web app as: http://web_app_ip:web_app_port/rest/echo/hi

The above URL works fine. But when i try to hit same URI via NGINX it throws 404. URL used via NGINX as: http://nginx_ip:nginx_port/spring-boot-web-app/rest/echo/hi

Is there something i am missing?

Answer

Gangaraju picture Gangaraju · May 5, 2016

This works for me. Can you try this?

  1. Running tomcat

    docker run -d -p 8080:8080 --name=tomcat tomcat:8 
    
  2. Running nginx

    docker run -d -p 80:80 --link tomcat:tomcat --name=nginx nginx
    
  3. Go inside nginx container and update the conf

    docker exec -it nginx bash
    

    /etc/nginx/nginx.conf:

    server {
       listen 80 default_server;
      server_name subdomain.domain.com;
      location / {
          proxy_pass http://tomcat:8080;
          proxy_set_header Host      $host;
          proxy_set_header X-Real-IP $remote_addr;
      }
    }
    
  4. Restart nginx service

    nginx -s reload
    
  5. Access the tomcat through nginx from host browser. You may need to add entry to /etc/hosts

    http://subdomain.domain.com
    

Complete nginx conf: nginx.conf