How to use websocket in an Aws Beanstalk hosted application

Question

I have a system running on aws Beanstalk, is a Java application with architecture Tomcat + Spring. I’m finding it difficult to make the websocket work, that locally is functional. The websocket receiver meets at the url dominio/socket, and the client connection is done in javascript as follows:

new WebSocket("wss://dominio/socket");

In aws the app runs on Elastic Beanstalk, with a application load balancer.I tried several ways to make it work, however I have the following feedback:

Some information about current environment:

• Doors 80, 8080 and 443 are open in the load;
• I created a target groups, enabled Stickiness and associated to load Alancer on path /socket http and https protocols;
• https is configured with certificate generated by aws;
• Load balancer manages 2 instances.

I’m running out of alternatives, I’ve done a lot of research and tried to replicate some ideas, however unsuccessful so far. I don’t know if the fact that there is a load balancer with two instances invalidates the current architecture.

I ask for some suggestion for the question and/or sharing of using websocket in aws with similiar artquitetura.

Thank you.

Answer 1

I managed to solve the problem, I will add the adopted solution because it can be useful to other people.

Starting from the architecture presented in the question, I made the following adjustments:

• I released the door 8080 in the TCP protocol (Type "Custom TCP Rule"). I therefore added a rule in the inbound and outbound security group associated with the load Alancer in question;
• I created a new "target group" associated with port 8080 and attributes I checked the option "Stickiness";
• I associated the target group created with load 8080 path port related to websocket end point.
• I changed the source code to specify the connection port with websocket, for example: wss://[dominio]:8080/[end_point]

Once this configuration has been set up the application has been connected via websocket with the load Alancer application on aws.