生产部署

部署代码#

使用 yarn build 打包代码，将打包文件与package.json，上传到服务器（这个过程使用 ci/cd 完成）。

开发与生产环境的配置文件 .env 是分离的，随代码上传的 .env 属于开发环境。

注意：.env 定义的配置变量可以使用 process.env.XXX 进行访问。 在开发环境，更改 .env 后，使用 yarn env-to-ts-type 生成新类型。

nginx#

命令

# 退出，此方式停止步骤是待nginx进程处理任务完毕进行停止。
nginx -s quit


# 关闭，相当于先查出nginx进程id再使用kill命令强制杀掉进程
nginx -s stop

# 重启，重新加载配置文件，先停止 nginx 再启动 nginx 即可将配置信息在 nginx 中生效
nginx -s reload

配置文件

/etc/nginx/nginx.conf

user www-data;
worker_processes auto;
pid /run/nginx.pid;
include /etc/nginx/modules-enabled/*.conf;

events {
  worker_connections 768;
  # multi_accept on;
}

http {
  # Basic Settings
  ##

  sendfile on;
  tcp_nopush on;
  tcp_nodelay on;
  keepalive_timeout 65;
  types_hash_max_size 2048;
  # server_tokens off;

  server_names_hash_bucket_size 64;
  # server_name_in_redirect off;

  include /etc/nginx/mime.types;
  default_type application/octet-stream;

  ##
  # SSL Settings
  ##

  ssl_protocols TLSv1 TLSv1.1 TLSv1.2; # Dropping SSLv3, ref: POODLE
  ssl_prefer_server_ciphers on;

  ##
  # Logging Settings
  ##

  access_log /var/log/nginx/access.log;
  error_log /var/log/nginx/error.log;

  ##
  # Gzip Settings
  ##
  gzip on;

  gzip_vary on;

  # gzip_proxied any;
  gzip_comp_level 3;
  gzip_buffers 16 8k;
  gzip_min_length 1k;
  gzip_http_version 1.1;
  gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript image/svg+xml;

  ##
  # Virtual Host Configs
  ##

  include /etc/nginx/conf.d/*.conf;
  include /etc/nginx/sites-enabled/*;
}

/etc/nginx/conf.d/example.com

upstream api_server {
  hash $remote_addr consistent;
  server 127.0.0.1:3000;
  # 指向本地的 node 服务
  # server 127.0.0.1:3093 weight=2;
  # server 127.0.0.1:3094;
  # server 127.0.0.1:3095;
  # server 10.10.11.1:80;
  # server 10.10.11.2:80;
  # server 10.10.11.3:80 backup;
}
server {
  # listen 443 ssl; # managed by Certbot
  # ssl_certificate /etc/letsencrypt/live/tailwindcss.tper.co/fullchain.pem; # managed by Certbot
  # ssl_certificate_key /etc/letsencrypt/live/tailwindcss.tper.co/privkey.pem; # managed by Certbot
  # include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
  # ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
  # 替换为你的域名
  server_name example.com;
  location / {
    proxy_http_version 1.1;
    proxy_cache_bypass $http_upgrade;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection 'upgrade';
    proxy_set_header Host $host;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-Proto $scheme;
    proxy_set_header X-Forwarded-For $remote_addr;

    proxy_pass http://api_server/api$request_uri;
  }
  location /io {
    proxy_http_version 1.1;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $host;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";
    proxy_pass http://api_server$request_uri;
  }
  location /ui {
    proxy_http_version 1.1;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $host;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";
    proxy_pass http://api_server$request_uri;
  }
}
server {
  listen 80;
  server_name _;
  return 301 https://$host$request_uri;
}

https 支持#

使用 Certbot

pm2 启动#

启动 app.js, 并指定 name

pm2 start app.js --name my-api

# 传递 node 参数
pm2 start app.js --name my-api --node-args="--max-old-space-size=4096"

重启

注意：如果是文件有更新，重启命令有时候使用的还是旧的打包文件，如果发生这种情况，请使用 pm2 stop 和 pm2 start

pm2 restart all

停止

pm2 stop all

删除配置

pm2 delete all

系统重启时，pm2 当前运行环境重启

pm2 startup

保当前存状态

pm2 save

检查是否运行正常#

查看检查命令

node 参数调优#

--max-old-space-size Node.js 中的内存限制，默认是 512 MB，如果超过该值，会触发 out of memory 错误，

--max-semi-space-size 触发 GC 的空间大小，默认 16 MB，为了避免频繁触发 GC，推荐使用 128 MB

--max-old-space-size 设置参考：

#increase to 1gb
node --max-old-space-size=1024 index.js

#increase to 2gb
node --max-old-space-size=2048 index.js

#increase to 3gb
node --max-old-space-size=3072 index.js

#increase to 4gb
node --max-old-space-size=4096 index.js

#increase to 5gb
node --max-old-space-size=5120 index.js

#increase to 6gb
node --max-old-space-size=6144 index.js

#increase to 7gb
node --max-old-space-size=7168 index.js

#increase to 8gb
node --max-old-space-size=8192 index.js