Scenario:
I have a docker container on a Ubuntu server. The Ubuntu server itself has nginx running and setup properly. How do I redirect this nginx to the container?
Discussion
If your container opens a port to the outside, then you can use an Nginx proxy to serve this port from 127.0.0.1 on a domain.
In this example here, a Haven relay is running on port 3355 in a Docker container. The port is exposed to the outside. My Nginx server then serves this port with SSL and a domain.
location / {
proxy_pass http://127.0.0.1:3355;
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-Proto $scheme;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
}
Let me get a full example.....
Full example (with Letsencypt SSL cert) of my hosted Haven relay:
server {
http2 on;
listen 443 ssl;
listen [::]:443 ssl;
server_name h.codingarena.top;
server_tokens off;
root /home/user/h.codingarena.top;
ssl_certificate /etc/nginx/ssl/h.codingarena.top/xxx/server.crt;
ssl_certificate_key /etc/nginx/ssl/h.codingarena.top/xxx/server.key;
ssl_protocols TLSv1.2 TLSv1.3;
ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384;
ssl_prefer_server_ciphers off;
ssl_dhparam /etc/nginx/dhparams.pem;
index index.html index.htm index.php;
charset utf-8;
location / {
proxy_pass http://127.0.0.1:3355;
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-Proto $scheme;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
}
location = /favicon.ico { access_log off; log_not_found off; }
location = /robots.txt { access_log off; log_not_found off; }
access_log off;
error_log /var/log/nginx/h.codingarena.top-error.log error;
error_page 404 /index.php;
location ~ /\.(?!well-known).* {
deny all;
}
}
Oh. Damn. It was just an "SSL" in the default server config that was wrong. Works now. Thank you!
Sorry for asking again. Last time I setup an nginx server was 2015 and I don't know if docker was even a thing back then.
I made a new host in the default config. With you example.
The fact that my (not dockerised) nip-05 server is still working but the other page is just showing it as well tells me that I am on the right path and did not screw up anything major.
The "http2" parameter does not work for me though.
As it makes more and more fun to type words into a command line I guess I will figure it out today. Nginx manual is my lecture today.
Not sure what you're trying to do exactly but I use a Caddy server to reverse proxy to my containers ip:port
Very convenient and it gives whatever container auto ssl. Adding a new container is adding the dns record and adding the line in Caddy and boom it's done
I want to be able to have multiple docker containers being available via the same nginx server.