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Nginx Reverse Proxy To Docker Container Web Apps Giving 404

I just made a fresh Ubuntu desktop vm, threw docker on it, threw Nginx on it, and pulled and ran the container yeasy/simple-web:latest, and ran it twice with the commands

docker run --rm -it -p 8000:80 yeasy/simple-web:latest

docker run --rm -it -p 8001:80 yeasy/simple-web:latest

I went over to /etc/nginx/sites-available and created a new file localhost.conf with the contents

server {
  listen      80;

  location /chad {
    proxy_pass  http://127.0.0.1:8000/;
  }

  location /brock {
    proxy_pass  http://127.0.0.1:8081/;
  }
}

I then created a symlink of the localhost.conf file at /etc/nginx/sites-enabled with the command

ln -s ../sites-available/localhost.conf .

This was all done as root.

When I curl localhost:8000 and localhost:8001 I get the correct webpage hosted in the docker container. When I curl localhost/chad or localhost/brock, I get an Nginx 404 error. I have not touched the default config for Nginx, and did not modify the Docker images

I am limited to using docker images and Nginx, so I cannot change technology stacks.

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2

Answers


  1. Chosen as BEST ANSWER
    0

    I ended up being able to host both my docker containers with Nginx on the host machine with the following config following the above instructions.

    server {
    root /var/www/html;

    index index.html index.htm index.nginx-debian.html;
    listen 127.0.0.1;
    server_name localhost;

    location / {
        try_files $uri $uri/ =404;
    }

    location /chad {
        proxy_pass http://127.0.0.1:8000/;
    }

    location /brock {
        proxy_pass http://127.0.0.1:8001/;
    }
}

  2. 0

    Not sure if you’re already doing this but it’s worth mentioning:

    You need to reload or restart Nginx whenever you make changes to its configuration.

    To reload Nginx, use one of the following commands:

    sudo systemctl reload nginx
sudo service nginx reload
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