This repository includes 3 containers.
The first, a nginx reverse proxy container that directs two ports 8080 and 8081 to the two other containers.
The 8080 port is directed to an nginx web server.
The 8081 port is directed to an apache web server.
$ docker-compose up -d
$ docker container ls
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
4b2933574382 nginx:alpine "/docker-entrypoint.…" 24 seconds ago Up 23 seconds 80/tcp cs3219-taska_nginx_1
7e7d85841fd8 httpd:alpine "httpd-foreground" 24 seconds ago Up 23 seconds 80/tcp cs3219-taska_apache_1
fec816d93282 kratious/reverseproxy "/docker-entrypoint.…" 24 seconds ago Up 23 seconds 80/tcp, 0.0.0.0:8080-8081->8080-8081/tcp cs3219-taska_reverseproxy_1
Execute the kratious/reverseproxy container
$ docker exec -it fec816d93282 /bin/bash
Inside the reverseproxy container, run the commands:
$ curl localhost:8080
<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
...
$ curl localhost:8081
<html><body><h1>It works!</h1></body></html>
The reverse proxy can be seen to be working by directing the ports to the web servers in the two other containers.