homelab/k8s/apps/syncthing/nginx-router.yaml

apiVersion: v1
kind: ConfigMap
metadata:
  name: nginx-config
  namespace: syncthing
data:
  default.conf: |
    map $http_upgrade $connection_upgrade {
        default upgrade;
        '' close;
    }

    server {
        listen 80;
        server_name _;

        # Landing page
        location = / {
            root /usr/share/nginx/html;
            try_files /index.html =404;
        }

        # NAS instance
        location /nas {
            rewrite ^/nas$ /nas/ permanent;
        }

        # NAS API endpoints
        location ~ ^/nas/(rest|meta)/ {
            rewrite ^/nas/(.*) /$1 break;
            proxy_pass http://syncthing-nas:8384;
            
            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;
            
            # Handle websockets
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
            proxy_read_timeout 86400;
        }

        location /nas/ {
            proxy_pass http://syncthing-nas:8384/;
            
            # Important: tell syncthing that we're using /nas as base path
            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;
            
            # Handle websockets
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
            proxy_read_timeout 86400;
            
            # Sub filter to fix asset paths
            sub_filter 'href="/' 'href="/nas/';
            sub_filter 'src="/' 'src="/nas/';
            sub_filter 'url(/' 'url(/nas/';
            sub_filter '"/meta' '"/nas/meta';
            sub_filter '"/rest' '"/nas/rest';
            sub_filter '"/vendor' '"/nas/vendor';
            sub_filter '"/theme-assets' '"/nas/theme-assets';
            sub_filter '"/syncthing' '"/nas/syncthing';
            # Add floating back button via JavaScript before last script tag
            sub_filter '<!-- / gui application code -->' '<!-- / gui application code --><script>window.addEventListener("load", function() { var btn = document.createElement("a"); btn.href = "/"; btn.innerHTML = "← Back to Instances"; btn.style.cssText = "position: fixed; top: 70px; left: 10px; z-index: 10000; background: #0078e7; color: white; padding: 8px 16px; border-radius: 4px; text-decoration: none; display: block; box-shadow: 0 2px 4px rgba(0,0,0,0.2);"; document.body.appendChild(btn); });</script>';
            sub_filter_once off;
            sub_filter_types text/html text/css application/javascript;
        }


        # Master instance
        location /master {
            rewrite ^/master$ /master/ permanent;
        }

        # Master API endpoints
        location ~ ^/master/(rest|meta)/ {
            rewrite ^/master/(.*) /$1 break;
            proxy_pass http://syncthing-master:8384;
            
            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;
            
            # Handle websockets
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
            proxy_read_timeout 86400;
        }
        
        location /master/ {
            proxy_pass http://syncthing-master:8384/;
            
            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";
            
            sub_filter 'href="/' 'href="/master/';
            sub_filter 'src="/' 'src="/master/';
            sub_filter 'url(/' 'url(/master/';
            sub_filter '"/meta' '"/master/meta';
            sub_filter '"/rest' '"/master/rest';
            sub_filter '"/vendor' '"/master/vendor';
            sub_filter '"/theme-assets' '"/master/theme-assets';
            sub_filter '"/syncthing' '"/master/syncthing';
            # Add floating back button via JavaScript before last script tag
            sub_filter '<!-- / gui application code -->' '<!-- / gui application code --><script>window.addEventListener("load", function() { var btn = document.createElement("a"); btn.href = "/"; btn.innerHTML = "← Back to Instances"; btn.style.cssText = "position: fixed; top: 70px; left: 10px; z-index: 10000; background: #0078e7; color: white; padding: 8px 16px; border-radius: 4px; text-decoration: none; display: block; box-shadow: 0 2px 4px rgba(0,0,0,0.2);"; document.body.appendChild(btn); });</script>';
            sub_filter_once off;
            sub_filter_types text/html text/css application/javascript;
        }


        # Iris instance  
        location /iris {
            rewrite ^/iris$ /iris/ permanent;
        }

        # Iris API endpoints
        location ~ ^/iris/(rest|meta)/ {
            rewrite ^/iris/(.*) /$1 break;
            proxy_pass http://syncthing-khv:8384;
            
            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;
            
            # Handle websockets
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
            proxy_read_timeout 86400;
        }
        
        location /iris/ {
            proxy_pass http://syncthing-khv:8384/;
            
            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";
            
            sub_filter 'href="/' 'href="/iris/';
            sub_filter 'src="/' 'src="/iris/';
            sub_filter 'url(/' 'url(/iris/';
            sub_filter '"/meta' '"/iris/meta';
            sub_filter '"/rest' '"/iris/rest';
            sub_filter '"/vendor' '"/iris/vendor';
            sub_filter '"/theme-assets' '"/iris/theme-assets';
            sub_filter '"/syncthing' '"/iris/syncthing';
            # Add floating back button via JavaScript before last script tag
            sub_filter '<!-- / gui application code -->' '<!-- / gui application code --><script>window.addEventListener("load", function() { var btn = document.createElement("a"); btn.href = "/"; btn.innerHTML = "← Back to Instances"; btn.style.cssText = "position: fixed; top: 70px; left: 10px; z-index: 10000; background: #0078e7; color: white; padding: 8px 16px; border-radius: 4px; text-decoration: none; display: block; box-shadow: 0 2px 4px rgba(0,0,0,0.2);"; document.body.appendChild(btn); });</script>';
            sub_filter_once off;
            sub_filter_types text/html text/css application/javascript;
        }

    }

  index.html: |
    <!DOCTYPE html>
    <html>
    <head>
        <title>Syncthing Instances</title>
        <style>
            body {
                font-family: Arial, sans-serif;
                display: flex;
                justify-content: center;
                align-items: center;
                height: 100vh;
                margin: 0;
                background-color: #f0f0f0;
            }
            .container {
                text-align: center;
                background: white;
                padding: 40px;
                border-radius: 10px;
                box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            }
            h1 {
                color: #333;
                margin-bottom: 30px;
            }
            .links {
                display: flex;
                flex-direction: column;
                gap: 15px;
            }
            a {
                display: inline-block;
                padding: 15px 30px;
                background-color: #0078e7;
                color: white;
                text-decoration: none;
                border-radius: 5px;
                transition: background-color 0.3s;
            }
            a:hover {
                background-color: #0056b3;
            }
        </style>
    </head>
    <body>
        <div class="container">
            <h1>Syncthing Instances</h1>
            <div class="links">
                <a href="/nas/">NAS Instance</a>
                <a href="/master/">Master Instance</a>
                <a href="/iris/">Iris Instance</a>
            </div>
        </div>
    </body>
    </html>
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: syncthing-router
  namespace: syncthing
spec:
  replicas: 1
  selector:
    matchLabels:
      app: syncthing-router
  template:
    metadata:
      labels:
        app: syncthing-router
    spec:
      containers:
      - name: nginx
        image: nginx:alpine
        ports:
        - containerPort: 80
        volumeMounts:
        - name: config
          mountPath: /etc/nginx/conf.d
        - name: html
          mountPath: /usr/share/nginx/html
      volumes:
      - name: config
        configMap:
          name: nginx-config
          items:
          - key: default.conf
            path: default.conf
      - name: html
        configMap:
          name: nginx-config
          items:
          - key: index.html
            path: index.html
---
apiVersion: v1
kind: Service
metadata:
  name: syncthing-router
  namespace: syncthing
spec:
  selector:
    app: syncthing-router
  ports:
    - protocol: TCP
      port: 80
      targetPort: 80