Run 3 websites on one domain using nginx

Lets say i have domain abc.com which redirects my server ip 1.2.3.4

i have 3 websites running on my server using docker container,

1st website ip 1.2.3.4:50/a
2nd website ip 1.2.3.4:60/b
3rd website ip 1.2.3.4:70/c

i can access this all websites using ip

i want to use my domain to run these three websites. e.g.

abc.com/a should run 1st website 
abc.com/b should run 2nd website 
abc.com/c should run 3rd website 

i am using nginx server version 1.14.1 on RHEL

Please help

i tried these configuration file

location /a {
                rewrite ^/a(.*)$ http://1.2.3.4:50/a redirect;
        }

 location /b {
                rewrite ^/b(.*)$ http://1.2.3.4:60/b redirect;
        }

but it is redirecting and displaying the port in the url

Try this to solve your problem

location /a {
        proxy_pass http://1.2.3.4:50;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }

location /b {
        proxy_pass http://1.2.3.4:60;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }

location /c {
        proxy_pass http://1.2.3.4:70;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }

For your information, this proxy configuration will make your abc.com/a to access the root of your http://1.2.3.4:50 website. But the /a will also be passed to the http://1.2.3.4:50 so you don't have to bother add http://1.2.3.4:50/a for each proxy

You can configure it explicitly inside the nginx.conf

// Nginx.conf
http {
 ...
 server {
    server_name abc.com;
    // here is location ...
   }
 }

Or by including configurations in sites-available, usually in the nginx.conf you can found this section:

// Nginx.conf
http {
 ...
 include /etc/nginx/sites-available/*;
 ...
}

Then you can add site.conf or main.conf, you name it yourself for example in sites-available folder that has this kind of configuration:

server {
    server_name abc.com;
    // here is location ...
}