feat(docker): containerize site with configurable host port

Add Dockerfile (nginx:1.27-alpine), nginx.conf (gzip, cache, CSP and security headers, no HSTS — left to outer proxy), and docker-compose service `bchanot-web`. Host port is configurable via PORT env var (default 8080) and bound to 127.0.0.1 so the container sits behind a reverse proxy. Container hardened with read_only fs, cap_drop ALL, no-new-privileges, and tmpfs for nginx runtime dirs. Healthcheck via wget on /. Also adds .dockerignore and .env.example, and ignores .env. Usage: cp .env.example .env docker compose up -d --build Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-15 16:53:20 +02:00
parent 54e830016c
commit 7957b04de0
6 changed files with 165 additions and 0 deletions
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+# nginx server block for bchanot.fr static site.
+# Container listens on port 80; host port is configured via docker-compose
+# (PORT env var). A host-level reverse proxy (nginx, Traefik, Caddy) should
+# terminate TLS and proxy_pass to http://127.0.0.1:${PORT}.
+
+server {
+    listen 80;
+    listen [::]:80;
+    server_name _;
+
+    root /usr/share/nginx/html;
+    index index.html;
+
+    # Security headers. HSTS is intentionally NOT set here — leave it to the
+    # outer reverse proxy that terminates TLS, otherwise it may be sent over
+    # plain HTTP between proxy and container.
+    add_header X-Content-Type-Options "nosniff" always;
+    add_header X-Frame-Options "SAMEORIGIN" always;
+    add_header Referrer-Policy "strict-origin-when-cross-origin" always;
+    add_header Permissions-Policy "geolocation=(), microphone=(), camera=(), payment=()" always;
+    # CSP: inline CSS + JS are allowed (project convention), fonts from Google.
+    add_header Content-Security-Policy "default-src 'self'; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; font-src 'self' https://fonts.gstatic.com; script-src 'self' 'unsafe-inline'; img-src 'self' data:; base-uri 'self'; form-action 'self'; frame-ancestors 'self'" always;
+
+    # Forwarded headers — trust the upstream reverse proxy.
+    real_ip_header X-Forwarded-For;
+    set_real_ip_from 0.0.0.0/0;
+
+    # Compression.
+    gzip on;
+    gzip_vary on;
+    gzip_min_length 1024;
+    gzip_proxied any;
+    gzip_comp_level 6;
+    gzip_types
+        text/plain
+        text/css
+        text/html
+        text/javascript
+        application/javascript
+        application/json
+        application/xml
+        application/pdf
+        image/svg+xml;
+
+    # Long cache for the PDF (regenerated rarely, content-hash not used).
+    location ~* \.pdf$ {
+        expires 7d;
+        add_header Cache-Control "public, max-age=604800";
+    }
+
+    # Short cache for HTML so content updates land fast.
+    location ~* \.html$ {
+        expires 1h;
+        add_header Cache-Control "public, max-age=3600, must-revalidate";
+    }
+
+    # Logs to stdout/stderr (default in nginx:alpine).
+    access_log /var/log/nginx/access.log;
+    error_log /var/log/nginx/error.log warn;
+
+    # Block access to dotfiles (defense-in-depth — none are shipped anyway).
+    location ~ /\. {
+        deny all;
+        return 404;
+    }
+
+    # Default: serve files, fall back to 404.
+    location / {
+        try_files $uri $uri/ =404;
+    }
+}