{"id":32303,"date":"2026-07-30T10:00:00","date_gmt":"2026-07-30T02:00:00","guid":{"rendered":"https:\/\/cn.hostease.com\/blog\/?p=32303"},"modified":"2026-08-03T18:27:49","modified_gmt":"2026-08-03T10:27:49","slug":"nginx-blue-green-vps","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/blog\/tutorials\/nginx-blue-green-vps\/","title":{"rendered":"Nginx \u84dd\u7eff\u90e8\u7f72\u5b9e\u6218\uff1a\u5728\u5355\u53f0 VPS \u4e0a\u5b9e\u73b0\u65e0\u505c\u673a\u7248\u672c\u5207\u6362"},"content":{"rendered":"

\"Nginx<\/p>\n

Nginx \u84dd\u7eff\u90e8\u7f72\u7684\u6838\u5fc3\u4ef7\u503c\uff0c\u662f\u5e2e\u52a9\u4f60\u5728\u5355\u53f0 [VPS](https:\/\/cn.hostease.com\/vps\/)\uff08[\u865a\u62df\u4e13\u7528\u670d\u52a1\u5668](https:\/\/cn.hostease.com\/vps\/)\uff09\u4e0a\u628a\u201c\u53d1\u7248\u201d\u548c\u201c\u56de\u6eda\u201d\u53d8\u6210\u53ef\u63a7\u52a8\u4f5c\uff0c\u800c\u4e0d\u662f\u628a\u6240\u6709\u8bbf\u95ee\u76f4\u63a5\u538b\u5230\u521a\u66f4\u65b0\u7684\u76ee\u5f55\u3002\u672c\u6587\u6559\u4f60\u7528\u4e24\u4e2a\u5e94\u7528\u76ee\u5f55\u3001\u4e00\u4e2a Nginx upstream \u548c\u4e00\u5957\u5065\u5eb7\u68c0\u67e5\u547d\u4ee4\uff0c\u89e3\u51b3\u5c0f\u56e2\u961f\u4e0a\u7ebf\u65f6\u6700\u5e38\u89c1\u7684 502\u3001\u9759\u6001\u8d44\u6e90\u9519\u914d\u548c\u56de\u6eda\u6162\u95ee\u9898\u3002<\/p>\n

\u8fd9\u4e2a\u65b9\u6848\u9002\u5408\u4e2a\u4eba\u7ad9\u957f\u3001\u4e2d\u5c0f\u4f01\u4e1a\u540e\u53f0\u3001\u5916\u8d38\u5c55\u793a\u7ad9\u548c\u8f7b\u91cf API \u670d\u52a1\u3002\u5b83\u4e0d\u80fd\u66ff\u4ee3\u5b8c\u6574\u96c6\u7fa4\uff0c\u4e5f\u4e0d\u7b49\u4e8e\u9ad8\u53ef\u7528\u67b6\u6784\uff1b\u4f46\u5728\u53ea\u6709\u4e00\u53f0 VPS\uff08\u865a\u62df[\u4e13\u7528\u670d\u52a1\u5668](https:\/\/cn.hostease.com\/dedicated-server\/)\uff09\u7684\u9884\u7b97\u4e0b\uff0c\u5b83\u80fd\u628a\u7248\u672c\u5207\u6362\u65f6\u95f4\u538b\u7f29\u5230\u4e00\u6b21 reload\uff0c\u5e76\u628a\u5931\u8d25\u56de\u6eda\u63a7\u5236\u5728\u51e0\u5341\u79d2\u5185\u3002\u51c6\u5907\u670d\u52a1\u5668\u57fa\u7840\u73af\u5883\u65f6\uff0c\u53ef\u4ee5\u5148\u53c2\u8003\u7f8e\u56fd VPS \u670d\u52a1\u5668\u90e8\u7f72\u6559\u7a0b<\/a>\u5b8c\u6210\u7cfb\u7edf\u66f4\u65b0\u3001\u7528\u6237\u6743\u9650\u548c\u57fa\u7840\u670d\u52a1\u5b89\u88c5\u3002<\/p>\n

\u5148\u7406\u89e3\u84dd\u7eff\u90e8\u7f72\u5728\u5355\u673a\u91cc\u7684\u8fb9\u754c<\/h2>\n

\u84dd\u7eff\u90e8\u7f72\u4e0d\u662f\u201c\u540c\u65f6\u8dd1\u4e24\u5957\u7ebf\u4e0a\u7cfb\u7edf\u201d\u8fd9\u4e48\u7b80\u5355\u3002\u5355\u53f0 VPS\uff08\u865a\u62df\u4e13\u7528\u670d\u52a1\u5668\uff09\u7684 CPU\u3001\u5185\u5b58\u548c\u78c1\u76d8 I\/O \u90fd\u662f\u5171\u4eab\u7684\uff0c\u6240\u4ee5\u66f4\u5408\u7406\u7684\u505a\u6cd5\u662f\uff1a\u84dd\u8272\u73af\u5883\u627f\u63a5\u5f53\u524d\u6d41\u91cf\uff0c\u7eff\u8272\u73af\u5883\u63d0\u524d\u90e8\u7f72\u65b0\u7248\u672c\uff1b\u9a8c\u8bc1\u901a\u8fc7\u540e\uff0c\u53ea\u628a Nginx \u7684\u8f6c\u53d1\u76ee\u6807\u5207\u5230\u7eff\u8272\u73af\u5883\u3002\u65e7\u7248\u672c\u6682\u65f6\u4fdd\u7559\uff0c\u4fbf\u4e8e\u5feb\u901f\u56de\u6eda\u3002<\/p>\n

\u4e3a\u4e86\u907f\u514d\u6982\u5ff5\u6df7\u4e71\uff0c\u53ef\u4ee5\u628a\u76ee\u5f55\u548c\u7aef\u53e3\u56fa\u5b9a\u4e0b\u6765\u3002\u5047\u8bbe\u5e94\u7528\u76d1\u542c\u672c\u673a\u7aef\u53e3\uff0c\u84dd\u8272\u73af\u5883\u4f7f\u7528 127.0.0.1:8081<\/code>\uff0c\u7eff\u8272\u73af\u5883\u4f7f\u7528 127.0.0.1:8082<\/code>\uff1b\u4ee3\u7801\u76ee\u5f55\u5206\u522b\u4e3a \/var\/www\/app-blue<\/code> \u4e0e \/var\/www\/app-green<\/code>\uff1b\u5f53\u524d\u751f\u6548\u7248\u672c\u7531\u4e00\u4e2a\u8f6f\u94fe\u63a5 \/etc\/nginx\/conf.d\/app-upstream.conf<\/code> \u6307\u5411\u5177\u4f53\u914d\u7f6e\u6587\u4ef6\u3002<\/p>\n

\"\u5355\u53f0<\/p>\n

\u8fd9\u79cd\u8bbe\u8ba1\u6709 3 \u4e2a\u76f4\u63a5\u597d\u5904\uff1a\u65b0\u7248\u672c\u542f\u52a8\u5931\u8d25\u4e0d\u4f1a\u5f71\u54cd\u65e7\u7248\u672c\uff1bNginx reload \u901a\u5e38\u4e0d\u4f1a\u4e2d\u65ad\u5df2\u5efa\u7acb\u8fde\u63a5\uff1b\u5982\u679c\u65b0\u7248\u672c\u51fa\u73b0\u4e1a\u52a1\u5f02\u5e38\uff0c\u53ef\u4ee5\u628a upstream \u5207\u56de\u65e7\u7aef\u53e3\u3002\u5173\u4e8e\u53cd\u5411\u4ee3\u7406\u7684\u57fa\u7840\u914d\u7f6e\u548c\u8f6c\u53d1\u903b\u8f91\uff0c\u53ef\u5ef6\u4f38\u9605\u8bfbNginx \u53cd\u5411\u4ee3\u7406\u4e0e\u8d1f\u8f7d\u5747\u8861\u914d\u7f6e\u6307\u5357<\/a>\u3002<\/p>\n

\u51c6\u5907\u76ee\u5f55\u3001\u8fdb\u7a0b\u548c Nginx upstream<\/h2>\n

\u5f00\u59cb\u524d\uff0c\u8bf7\u786e\u8ba4\u670d\u52a1\u5668\u5df2\u7ecf\u5b89\u88c5 Nginx\u3001\u5e94\u7528\u8fd0\u884c\u65f6\u548c systemd\u3002\u4e0b\u9762\u7528\u4e24\u4e2a systemd \u670d\u52a1\u8868\u793a\u84dd\u7eff\u73af\u5883\uff0c\u4f60\u4e5f\u53ef\u4ee5\u6362\u6210 Docker Compose\u3001PM2 \u6216\u5176\u4ed6\u8fdb\u7a0b\u7ba1\u7406\u5de5\u5177\uff0c\u5173\u952e\u662f\u4e24\u4e2a\u7248\u672c\u5fc5\u987b\u80fd\u5728\u4e0d\u540c\u7aef\u53e3\u72ec\u7acb\u542f\u52a8\u3002<\/p>\n

sudo mkdir -p \/var\/www\/app-blue \/var\/www\/app-green\nsudo chown -R deploy:deploy \/var\/www\/app-blue \/var\/www\/app-green\n\n## \u793a\u4f8b\uff1a\u84dd\u8272\u73af\u5883\u76d1\u542c 8081\uff0c\u7eff\u8272\u73af\u5883\u76d1\u542c 8082\nsudo systemctl status app-blue\nsudo systemctl status app-green\n<\/code><\/pre>\n
\u63a5\u7740\u51c6\u5907\u4e24\u4efd upstream \u6587\u4ef6\u3002\u6bcf\u4efd\u6587\u4ef6\u53ea\u5b9a\u4e49\u4e00\u4e2a\u540e\u7aef\u76ee\u6807\uff0c\u4e3b\u7ad9\u70b9\u914d\u7f6e\u901a\u8fc7 include \u5f15\u5165\u5b83\u3002\u8fd9\u6837\u5207\u6362\u7248\u672c\u65f6\uff0c\u4e0d\u9700\u8981\u4fee\u6539\u6574\u6bb5 server \u914d\u7f6e\uff0c\u51cf\u5c11\u8bef\u6539\u8bc1\u4e66\u3001\u65e5\u5fd7\u8def\u5f84\u6216\u7f13\u5b58\u89c4\u5219\u7684\u6982\u7387\u3002<\/p>\n
# \/etc\/nginx\/conf.d\/upstream-blue.conf\nupstream app_backend {\n    server 127.0.0.1:8081 max_fails=2 fail_timeout=10s;\n}\n\n## \/etc\/nginx\/conf.d\/upstream-green.conf\nupstream app_backend {\n    server 127.0.0.1:8082 max_fails=2 fail_timeout=10s;\n}\n<\/code><\/pre>\n
\u4e3b\u7ad9\u70b9\u914d\u7f6e\u4fdd\u6301\u7a33\u5b9a\uff0c\u53ea\u5f15\u7528\u5f53\u524d\u751f\u6548\u7684 upstream\u3002\u82e5\u7ad9\u70b9\u5df2\u7ecf\u542f\u7528 SSL\uff08\u5b89\u5168\u4f20\u8f93\u534f\u8bae\uff09\u8bc1\u4e66\uff0c\u8bc1\u4e66\u6bb5\u4e5f\u5e94\u56fa\u5b9a\u5728 server \u914d\u7f6e\u91cc\uff0c\u4e0d\u8981\u8ddf\u968f\u7248\u672c\u76ee\u5f55\u4e00\u8d77\u5207\u6362\u3002<\/p>\n
include \/etc\/nginx\/conf.d\/app-upstream.conf;\n\nserver {\n    listen 80;\n    server_name example.com;\n\n    location \/ {\n        proxy_pass http:\/\/app_backend;\n        proxy_set_header Host $host;\n        proxy_set_header X-Real-IP $remote_addr;\n        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;\n        proxy_connect_timeout 3s;\n        proxy_read_timeout 30s;\n    }\n}\n<\/code><\/pre>\n
\u7528\u5065\u5eb7\u68c0\u67e5\u51b3\u5b9a\u80fd\u4e0d\u80fd\u5207\u6d41\u91cf<\/h2>\n
\u771f\u6b63\u964d\u4f4e\u98ce\u9669\u7684\u4e0d\u662f\u201c\u6709\u4e24\u4e2a\u76ee\u5f55\u201d\uff0c\u800c\u662f\u5207\u6362\u524d\u7684\u9a8c\u8bc1\u3002\u5efa\u8bae\u81f3\u5c11\u68c0\u67e5 4 \u9879\uff1a\u8fdb\u7a0b\u72b6\u6001\u3001\u5065\u5eb7\u68c0\u67e5\u63a5\u53e3\u3001\u5173\u952e\u9759\u6001\u8d44\u6e90\u548c\u4e00\u6b21\u771f\u5b9e\u4e1a\u52a1\u8bf7\u6c42\u3002\u5bf9\u4e8e WordPress\u3001Node.js\u3001Python API \u7b49\u7ad9\u70b9\uff0c\u5065\u5eb7\u68c0\u67e5\u63a5\u53e3\u53ef\u4ee5\u8fd4\u56de\u7248\u672c\u53f7\u3001\u6570\u636e\u5e93\u8fde\u63a5\u72b6\u6001\u548c\u7f13\u5b58\u8fde\u63a5\u72b6\u6001\uff0c\u4f46\u4e0d\u8981\u66b4\u9732\u654f\u611f\u914d\u7f6e\u3002<\/p>\n
#!\/usr\/bin\/env bash\nset -euo pipefail\nTARGET_PORT=\"$1\"\n\ncurl -fsS \"http:\/\/127.0.0.1:${TARGET_PORT}\/health\" | grep -q \"ok\"\ncurl -fsS \"http:\/\/127.0.0.1:${TARGET_PORT}\/\" >\/dev\/null\ncurl -fsS \"http:\/\/127.0.0.1:${TARGET_PORT}\/assets\/app.css\" >\/dev\/null\n\necho \"health check passed on ${TARGET_PORT}\"\n<\/code><\/pre>\n
\u5982\u679c\u5065\u5eb7\u68c0\u67e5\u5931\u8d25\uff0c\u672c\u8f6e\u53d1\u5e03\u5e94\u76f4\u63a5\u505c\u6b62\uff0c\u4e0d\u8981\u7ee7\u7eed reload\u3002\u8fd9\u91cc\u7684\u76ee\u6807\u4e0d\u662f\u8ffd\u6c42\u590d\u6742\uff0c\u800c\u662f\u628a\u201c\u4e0a\u7ebf\u524d\u770b\u4e00\u773c\u201d\u53d8\u6210\u811a\u672c\u5316\u95e8\u69db\u3002\u670d\u52a1\u5668\u9632\u706b\u5899\u4e5f\u8981\u4fdd\u6301\u6700\u5c0f\u66b4\u9732\uff1a\u516c\u7f51\u53ea\u5f00\u653e 80\u3001443 \u548c\u5fc5\u8981\u7684\u7ba1\u7406\u7aef\u53e3\uff0c8081\u30018082 \u5e94\u9650\u5236\u4e3a\u672c\u673a\u8bbf\u95ee\u3002\u76f8\u5173\u5b89\u5168\u7b56\u7565\u53ef\u53c2\u8003VPS \u9632\u706b\u5899\u914d\u7f6e\u6307\u5357<\/a>\u3002<\/p>\n
\"\u5065\u5eb7\u68c0\u67e5\u901a\u8fc7\u540e\u518d\u5207\u6362<\/p>\n
\u6267\u884c\u5207\u6362\uff0c\u5e76\u4fdd\u7559\u53ef\u56de\u6eda\u7a97\u53e3<\/h2>\n
\u5047\u8bbe\u5f53\u524d\u84dd\u8272\u73af\u5883\u5728\u7ebf\uff0c\u65b0\u7248\u672c\u90e8\u7f72\u5230\u7eff\u8272\u73af\u5883\u3002\u901a\u8fc7\u5065\u5eb7\u68c0\u67e5\u540e\uff0c\u628a upstream \u8f6f\u94fe\u63a5\u5207\u5230\u7eff\u8272\u914d\u7f6e\uff0c\u518d\u6267\u884c nginx -t<\/code> \u548c reload\u3002\u5b8c\u6574\u52a8\u4f5c\u53ef\u4ee5\u5199\u6210\u4e00\u4e2a\u811a\u672c\uff0c\u4f46\u6bcf\u4e00\u6b65\u90fd\u8981\u4fdd\u7559\u5931\u8d25\u9000\u51fa\uff0c\u907f\u514d\u534a\u5207\u6362\u72b6\u6001\u3002<\/p>\n
sudo ln -sfn \/etc\/nginx\/conf.d\/upstream-green.conf \/etc\/nginx\/conf.d\/app-upstream.conf\nsudo nginx -t\nsudo systemctl reload nginx\ncurl -I http:\/\/127.0.0.1\/\n<\/code><\/pre>\n
\u5207\u6362\u540e\u5efa\u8bae\u89c2\u5bdf 10-15 \u5206\u949f\uff0c\u91cd\u70b9\u770b Nginx access log\u3001error log\u3001\u5e94\u7528\u9519\u8bef\u7387\u548c\u63a5\u53e3\u8017\u65f6\u3002\u5982\u679c\u53d1\u73b0 502 \u589e\u591a\u3001\u767b\u5f55\u5f02\u5e38\u6216\u9759\u6001\u8d44\u6e90 404\uff0c\u7acb\u5373\u5207\u56de\u84dd\u8272\u914d\u7f6e\uff1a<\/p>\n
sudo ln -sfn \/etc\/nginx\/conf.d\/upstream-blue.conf \/etc\/nginx\/conf.d\/app-upstream.conf\nsudo nginx -t\nsudo systemctl reload nginx\n<\/code><\/pre>\n
\u56de\u6eda\u540e\u4e0d\u8981\u9a6c\u4e0a\u5220\u9664\u7eff\u8272\u76ee\u5f55\u3002\u5148\u8bb0\u5f55\u9519\u8bef\u65e5\u5fd7\u3001\u7248\u672c\u53f7\u3001\u53d1\u5e03\u65f6\u95f4\u548c\u89e6\u53d1\u6761\u4ef6\uff0c\u518d\u51b3\u5b9a\u662f\u4fee\u590d\u540e\u91cd\u53d1\uff0c\u8fd8\u662f\u56de\u9000\u4ee3\u7801\u5206\u652f\u91cd\u65b0\u6784\u5efa\u3002\u5bf9\u4e8e\u8bbf\u95ee\u91cf\u8f83\u5927\u7684\u7ad9\u70b9\uff0c\u8fd8\u53ef\u4ee5\u7ed3\u5408Nginx \u6027\u80fd\u8c03\u4f18\u6e05\u5355<\/a>\u68c0\u67e5 keepalive\u3001\u7f13\u51b2\u533a\u548c worker \u53c2\u6570\uff0c\u907f\u514d\u53d1\u5e03\u8fc7\u7a0b\u88ab\u6027\u80fd\u74f6\u9888\u653e\u5927\u3002<\/p>\n
\u5e38\u89c1\u98ce\u9669\u4e0e\u68c0\u67e5\u6e05\u5355<\/h2>\n
\u5355\u673a\u84dd\u7eff\u90e8\u7f72\u6700\u5bb9\u6613\u51fa\u95ee\u9898\u7684\u5730\u65b9\uff0c\u5f80\u5f80\u4e0d\u662f Nginx \u8bed\u6cd5\uff0c\u800c\u662f\u5171\u4eab\u8d44\u6e90\u3002\u4e24\u4e2a\u7248\u672c\u5982\u679c\u540c\u65f6\u5199\u540c\u4e00\u4e2a\u4e0a\u4f20\u76ee\u5f55\u3001\u540c\u4e00\u5f20\u4e34\u65f6\u8868\u6216\u540c\u4e00\u4efd\u7f13\u5b58\u6587\u4ef6\uff0c\u5c31\u53ef\u80fd\u51fa\u73b0\u65e7\u7248\u672c\u548c\u65b0\u7248\u672c\u4e92\u76f8\u8986\u76d6\u7684\u60c5\u51b5\u3002\u56e0\u6b64\uff0c\u53d1\u5e03\u524d\u8981\u628a\u72b6\u6001\u7c7b\u8d44\u6e90\u5355\u72ec\u5217\u51fa\u6765\u3002<\/p>\n
    \n
  • \u6570\u636e\u5e93\u53d8\u66f4\uff1a\u5411\u540e\u517c\u5bb9\u4f18\u5148\uff0c\u4f8b\u5982\u5148\u65b0\u589e\u5b57\u6bb5\uff0c\u518d\u4e0a\u7ebf\u8bfb\u53d6\u903b\u8f91\uff0c\u6700\u540e\u6e05\u7406\u65e7\u5b57\u6bb5\u3002<\/li>\n
  • \u4e0a\u4f20\u76ee\u5f55\uff1a\u7edf\u4e00\u653e\u5728 \/data\/uploads<\/code> \u8fd9\u7c7b\u5171\u4eab\u8def\u5f84\uff0c\u4e0d\u653e\u5728\u7248\u672c\u76ee\u5f55\u5185\u3002<\/li>\n
  • \u7f13\u5b58\u952e\u540d\uff1a\u6d89\u53ca\u7ed3\u6784\u53d8\u5316\u65f6\u589e\u52a0\u7248\u672c\u524d\u7f00\uff0c\u4f8b\u5982 product:v2:<\/code>\u3002<\/li>\n
  • \u5b9a\u65f6\u4efb\u52a1\uff1a\u540c\u4e00\u65f6\u95f4\u53ea\u5141\u8bb8\u4e00\u4e2a\u73af\u5883\u6267\u884c\uff0c\u907f\u514d\u8ba2\u5355\u3001\u90ae\u4ef6\u6216\u62a5\u8868\u91cd\u590d\u89e6\u53d1\u3002<\/li>\n<\/ul>\n
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