I made a Docker container of a website that’s difficult to deploy, and I can reliably deploy it on localhost on my personal machine. The container sets up an Apache server with all the files and config to run the website.
However, the story is different on my VPS running Ubuntu and Apache. I have two other websites running on the same VPS, each with different domains and running directly on the host without Docker. When I deploy the dockerized website, I can’t access that site. I opened ports on UFW. The Docker container sets the site to run on port 8000, and I tried running a reverse proxy on just that site with Apache by defining a config pointing towards the internal Docker IP on port 8000, but no luck.
Now I’m thinking of running a reverse proxy, but I haven’t found any guides covering my situation: routing websites on both the host machine and through Docker. nginx-proxy looks to cover only Docker containers, and the Apache reverse proxy couldn’t access the Docker container.
What are my options here? I plan to dockerize everything eventually, but that will be sometime in the future and not right away.


Start with basic diagnostics, see if apache is running inside the container, if it is can you
curlfrom inside the container, if that works can youcurlfrom the docker host, if that works did docker create the firewall rule to expose the port or is the VPS overriding things in some way?If that all looks good, is there a VPS provider firewall in place outside the OS?
Gotta start with the basics.
Thanks for your reply. Yes, I can access with curl inside the container. The problem seems to be with SSL and I can’t figure out why:
curl https://127.0.0.1:8000/ curl: (60) SSL: no alternative certificate subject name matches target host name '127.0.0.1'I’m using the same certs that the host machine uses. When I bypass authentication with
curl -k https://127.0.0.1:8000/it outputs the contents of the page. I don’t believe there’s a VPS firewall since I have another service running on a higher-numbered port which is accessible from the outside.An SSL error is expected because you’re using localhost and not the common name that the cert is issued for. But the fact that it’s connecting and showing the error means the server is working.