NGINX

The og tool that can be used as reverse proxy the way I am using.
As loadbalancer, I will be using.

Its dope.

We just need to write a conf file
similar to writing a json file.

The syntax is just wow.

Next, it takes care of everything magically.
Thanks from the deepest of my heart to the creator.

The conf file

The upstream name and the docker compose container name must match

Example

docker-compose.yaml

chatf:
  build:
    dockerfile: dockerfile
    context: "./chat_feature"
  volumes:
    - /chat/node_modules
    - ./chat_feature:/chat

nginx/default.conf

upstream chatf{
    server chatf:3005;
}

server{
    listen 80;

    location /chatf {
        proxy_pass http://chatf;
    }
}

So just a small change in the conf file

have the same name of upstream as the contaniner

upstream chatf{
    server chatf:3005;
}
server{
    listen 80;

        location /chatg {
        proxy_pass http://chatf;
    }
}

So as you can see the upstream is same but the changes are in the routing.

Also I made a small change in my chat server.

app.get("/chatf", (req, res) => {
  res.send("Chat route hit");
});
app.get("/chatg", (req, res)=>{
  res.send("Chat route hit");
});

Since the /chatg was now proxy_pass to the chat app.
So I needed to add the chatg route to the chat app.
So that it can recieve the requests.