How to make docker application use port 80 (http) instead of 443 (https) - apache

Question

I recently installed this web application on my Ubuntu server which runs Apache (SSL disabled).
It doesn't matter how much i try i can't get the application to use http. tried the -p flag. Then it exposes port 443 and binds something else. I hate browser warnings about SSL. I just want to use http with port 8080.
The application use nginx which only listens to 443. I want my application URL to look like http://localhost:8080 This application use Google OAuth for logins. I'm assuming it will work on http.
How to get it to work in http?

Answer 1

You must edit nginx.conf in order to use plain http (nginx will never speak http on a https port, only for some errors)
Change:
listen 443;
server_name localhost;
access_log /dev/stdout;
error_log /dev/stderr;
ssl on;
ssl_certificate /src/openseedbox/conf/host.cert;
ssl_certificate_key /src/openseedbox/conf/host.key;
To:
listen 8080;
server_name localhost;
access_log /dev/stdout;
error_log /dev/stderr;
Then after docker build, run with:
docker run -p 8080:8080 .......
Alternatively you can set your Apache as an HTTP virtual host that reverse-proxy to the secure HTTPS nginx. But I think it is easier to modify nginx config.
Approach #2
You can add another nginx container to act as reverse proxy, not sure if the application behind will break, but it acts as http "plainer":
docker-compose.yml
# Add this:
plain_nginx:
image: nginx
volumes:
- ./plain_nginx.conf:/etc/nginx/conf.d/default.conf
ports:
- 8080:80
links:
- openseedbox
plain_nginx.conf
server {
listen 80;
server_name _;
access_log /dev/stdout;
error_log /dev/stderr;
location / {
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Ssl on;
proxy_pass https://openseedbox;
}
}
Then do from ./docker/ directory in that repo:
docker-compose up
Then you have http://localhost:8080 acting as reverse proxy of the SSL stuff