feat: enhance observability with dynamic links, Docker API integration, and health checks

2026-07-22 18:12:44 +07:00
parent 4ef4f615c1
commit da268f1671
7 changed files with 194 additions and 103 deletions
@@ -1,70 +1,92 @@
-server {
-    listen       8080;
-    server_name  localhost;
-    root   /usr/share/nginx/html;
-    index  index.html;
+# Dashboard nginx — runs as root to access Docker socket
+user root;
+worker_processes auto;
+pid /var/run/nginx.pid;
+pcre_jit on;

-    # CORS headers for API endpoints
-    add_header Access-Control-Allow-Origin *;
-    add_header Access-Control-Allow-Methods "GET, OPTIONS";
-    add_header Access-Control-Allow-Headers "DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range";
+events {
+    worker_connections 1024;
+}

-    # Security headers
-    add_header X-Frame-Options DENY;
-    add_header X-Content-Type-Options nosniff;
-    add_header Referrer-Policy same-origin;
+http {
+    include       /etc/nginx/mime.types;
+    default_type  application/octet-stream;
+
+    access_log  /var/log/nginx/access.log;
+    sendfile    on;
+    tcp_nopush  on;
+    keepalive_timeout  65;

    # Gzip
    gzip on;
    gzip_types text/html text/css application/javascript application/json;

-    # Jaeger API proxy
-    location /api/jaeger/ {
-        proxy_pass http://jaeger:16686/;
-        proxy_set_header Host $host;
-        proxy_set_header X-Real-IP $remote_addr;
-        proxy_http_version 1.1;
-        proxy_read_timeout 30s;
-    }
+    server {
+        listen       8080;
+        server_name  localhost;
+        root   /usr/share/nginx/html;
+        index  index.html;

-    # Jaeger UI
-    location /jaeger/ {
-        proxy_pass http://jaeger:16686/;
-        proxy_set_header Host $host;
-        proxy_set_header X-Real-IP $remote_addr;
-        proxy_http_version 1.1;
-        proxy_set_header Upgrade $http_upgrade;
-        proxy_set_header Connection "upgrade";
-        proxy_read_timeout 86400s;
-    }
+        # Security headers
+        add_header X-Frame-Options DENY;
+        add_header X-Content-Type-Options nosniff;
+        add_header Referrer-Policy same-origin;

-    # OTel collector prometheus metrics
-    location /api/metrics {
-        proxy_pass http://otel-collector:8889/metrics;
-        proxy_set_header Host $host;
-        proxy_read_timeout 10s;
-    }
+        # Jaeger API proxy
+        location /api/jaeger/ {
+            proxy_pass http://jaeger:16686/;
+            proxy_set_header Host $host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_http_version 1.1;
+            proxy_read_timeout 30s;
+        }

-    # OTel collector health
-    location /api/health {
-        proxy_pass http://otel-collector:8888/healthz;
-        proxy_set_header Host $host;
-        proxy_read_timeout 5s;
-    }
+        # Jaeger UI
+        location /jaeger/ {
+            proxy_pass http://jaeger:16686/;
+            proxy_set_header Host $host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_http_version 1.1;
+            proxy_set_header Upgrade $http_upgrade;
+            proxy_set_header Connection "upgrade";
+            proxy_read_timeout 86400s;
+        }

-    # Static files (including index.html)
-    location / {
-        try_files $uri $uri/ /index.html;
-        expires 5s;
-        add_header Cache-Control "public, must-revalidate";
-    }
+        # OTel collector prometheus metrics
+        location /api/metrics {
+            proxy_pass http://otel-collector:8889/metrics;
+            proxy_set_header Host $host;
+            proxy_read_timeout 10s;
+        }

-    # Deny hidden files
-    location ~ /\. {
-        deny all;
-        access_log off;
-        log_not_found off;
-    }
+        # OTel collector health
+        location /api/health {
+            proxy_pass http://otel-collector:13133/;
+            proxy_set_header Host $host;
+            proxy_read_timeout 5s;
+        }

-    error_page 404 /index.html;
+        # Docker API proxy (read-only Unix socket)
+        location /api/docker/ {
+            proxy_pass http://unix:/var/run/docker.sock:/;
+            proxy_set_header Host $host;
+            proxy_read_timeout 10s;
+        }
+
+        # Static files
+        location / {
+            try_files $uri $uri/ /index.html;
+            expires 5s;
+            add_header Cache-Control "public, must-revalidate";
+        }
+
+        # Deny hidden files
+        location ~ /\. {
+            deny all;
+            access_log off;
+            log_not_found off;
+        }
+
+        error_page 404 /index.html;
+    }
 }