feat(val-blog): add 2026-04-30 dream journey post

gch3n-infra/nginx/conf.d/app.gch3n.online.conf

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+# 应用蓝绿部署
+server {
+    listen 80;
+    server_name app.gch3n.online;
+    
+    # Certbot 验证
+    location /.well-known/acme-challenge/ {
+        root /var/www/certbot;
+    }
+    
+    location / {
+        return 301 https://$server_name$request_uri;
+    }
+}
+
+server {
+    listen 443 ssl http2;
+    server_name app.gch3n.online;
+
+    ssl_certificate /etc/letsencrypt/live/gch3n.online/fullchain.pem;
+    ssl_certificate_key /etc/letsencrypt/live/gch3n.online/privkey.pem;
+    
+    # SSL 优化
+    ssl_protocols TLSv1.2 TLSv1.3;
+    ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384;
+    ssl_prefer_server_ciphers off;
+    ssl_session_cache shared:SSL:10m;
+    ssl_session_timeout 1d;
+    ssl_session_tickets off;
+
+    # 安全头
+    add_header Strict-Transport-Security "max-age=63072000" always;
+    add_header X-Frame-Options "SAMEORIGIN" always;
+    add_header X-Content-Type-Options "nosniff" always;
+    add_header X-XSS-Protection "1; mode=block" always;
+    add_header Referrer-Policy "strict-origin-when-cross-origin" always;
+
+    # 健康检查端点
+    location /health {
+        proxy_pass http://app_backend/health;
+        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;
+        access_log off;
+    }
+
+    # 应用代理
+    location / {
+        proxy_pass http://app_backend;
+        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;
+        
+        # WebSocket 支持
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection $http_connection;
+        
+        # 超时设置
+        proxy_connect_timeout 60s;
+        proxy_send_timeout 60s;
+        proxy_read_timeout 60s;
+        
+        # 错误处理
+        proxy_next_upstream error timeout invalid_header http_500 http_502 http_503 http_504;
+        proxy_next_upstream_tries 2;
+    }
+}

gch3n-infra/nginx/conf.d/git.gch3n.online.conf

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+# Gitea Git 服务器
+server {
+    listen 80;
+    server_name git.gch3n.online;
+    
+    # Certbot 验证
+    location /.well-known/acme-challenge/ {
+        root /var/www/certbot;
+    }
+    
+    location / {
+        return 301 https://$server_name$request_uri;
+    }
+}
+
+server {
+    listen 443 ssl http2;
+    server_name git.gch3n.online;
+
+    ssl_certificate /etc/letsencrypt/live/gch3n.online/fullchain.pem;
+    ssl_certificate_key /etc/letsencrypt/live/gch3n.online/privkey.pem;
+    
+    # SSL 优化
+    ssl_protocols TLSv1.2 TLSv1.3;
+    ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384;
+    ssl_prefer_server_ciphers off;
+    ssl_session_cache shared:SSL:10m;
+    ssl_session_timeout 1d;
+    ssl_session_tickets off;
+
+    # 安全头
+    add_header Strict-Transport-Security "max-age=63072000" always;
+    add_header X-Frame-Options "SAMEORIGIN" always;
+    add_header X-Content-Type-Options "nosniff" always;
+
+    # Gitea 代理
+    location / {
+        proxy_pass http://gitea:3000;
+        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;
+        
+        # WebSocket 支持
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection $http_connection;
+        
+        # 超时设置
+        proxy_connect_timeout 60s;
+        proxy_send_timeout 60s;
+        proxy_read_timeout 60s;
+    }
+}

gch3n-infra/nginx/nginx.conf

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+user nginx;
+worker_processes auto;
+error_log /var/log/nginx/error.log warn;
+pid /var/run/nginx.pid;
+
+events {
+    worker_connections 1024;
+    use epoll;
+    multi_accept on;
+}
+
+http {
+    include /etc/nginx/mime.types;
+    default_type application/octet-stream;
+
+    # 日志格式
+    log_format main '$remote_addr - $remote_user [$time_local] "$request" '
+                    '$status $body_bytes_sent "$http_referer" '
+                    '"$http_user_agent" "$http_x_forwarded_for" '
+                    'upstream=$upstream_addr upstream_time=$upstream_response_time';
+
+    access_log /var/log/nginx/access.log main;
+
+    # 性能优化
+    sendfile on;
+    tcp_nopush on;
+    tcp_nodelay on;
+    keepalive_timeout 65;
+    types_hash_max_size 2048;
+
+    # 压缩
+    gzip on;
+    gzip_vary on;
+    gzip_proxied any;
+    gzip_comp_level 6;
+    gzip_types text/plain text/css text/xml application/json application/javascript application/rss+xml application/atom+xml image/svg+xml;
+
+    # 上游服务器（蓝绿部署）
+    upstream app_backend {
+        least_conn;
+        server app-blue:3001 max_fails=3 fail_timeout=30s;
+        server app-green:3002 max_fails=3 fail_timeout=30s;
+        
+        # 健康检查
+        check interval=5000 rise=2 fall=3 timeout=3000 type=http;
+        check_http_send "GET /health HTTP/1.0\r\n\r\n";
+        check_http_expect_alive http_2xx http_3xx;
+    }
+
+    # 包含站点配置
+    include /etc/nginx/conf.d/*.conf;
+}