Fix jenkins.swave.lol 404 by proxying through /jenkins prefix

Jenkins requires --prefix=/jenkins for path-based access on swave.lol.
Redirect subdomain root to /jenkins/ and proxy the prefix path to
Jenkins, avoiding double-prefix redirect loops.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

1 files changed, 8 insertions, 2 deletions

diff --git a/nginx/nginx.conf b/nginx/nginx.conf
index 9afed4f..ea83fd1 100644
--- a/nginx/nginx.conf
+++ b/nginx/nginx.conf
@@ -121,8 +121,14 @@ server {
 
     charset utf-8;
 
-    location / {
-        proxy_pass http://jenkins:8080;
+    # Jenkins requires --prefix=/jenkins, so all URLs must go through /jenkins
+    # Redirect root to /jenkins, then proxy /jenkins to Jenkins
+    location = / {
+        return 302 https://$host/jenkins/;
+    }
+
+    location /jenkins {
+        proxy_pass http://jenkins:8080/jenkins;
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;