Nginx: WebSocket wildcard location - nginx

Question

I use a nginx instance in front of a Go service.
I want to redirect anything on port 80 to https. [done]
All (non-websocket) https requests at /* should go to https://localhost:8443/* [done]
All websocket https requests at /ws/* should go to https://localhost:8443/ws/* [missing]
My current config:
ssl_certificate ...
ssl_certificate_key ...
ssl_ciphers ...
ssl_prefer_server_ciphers on;
server {
listen 80;
location / {
return 301 https://$host$request_uri;
}
}
server {
listen 443 ssl;
server_name www.mydomain.com mydomain.com;
add_header Strict-Transport-Security "max-age=31536000";
location /ws { <--- This only works for /ws but not /ws/app1
proxy_pass http://localhost:8443/ws;
proxy_http_version 1.1;
proxy_set_header Host $http_host;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
}
location / { <--- Catches anything, even without wildcard ?!
proxy_pass http://localhost:8443;
}
}
server {
listen 443 ssl;
server_name *.mydomain.com;
return 444;
}
Why is this necessary ? Well, as I understand, you have to set the upgrade headers explicitly, so I guess you have to specify another location.
Ideally, I would just use one location, but then websockets are blocked (because upgrade headers never make it to the Go service...)
I'm not a nginx expert, so bear with me =).
[EDIT]
I got it working now. I'm not sure if its ok to always set_header Upgrade/Connection, even if it's not a websocket request, but my Go service doesn't give a ****, so it works for me =]
ssl_certificate ...
ssl_certificate_key ...
ssl_ciphers ...
ssl_prefer_server_ciphers on;
server {
listen 80;
location / {
return 301 https://$host$request_uri;
}
}
server {
listen 443 ssl;
server_name www.mydomain.com mydomain.com;
add_header Strict-Transport-Security "max-age=31536000";
location / { <--- Catches anything, even without wildcard ?!
proxy_pass http://localhost:8443;
proxy_redirect off;
proxy_http_version 1.1;
proxy_set_header Host $http_host;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
}
}
server {
listen 443 ssl;
server_name *.mydomain.com;
return 444;
}

Answer 1

Check out the article at https://www.digitalocean.com/community/tutorials/understanding-nginx-server-and-location-block-selection-algorithms
You are not using any location_match, so the match is a prefix match.
Use ~ as the location match modifier to have it interpreted as a regular expression.
The line location /ws should match every query starting with /ws.