Rails + Nginx + Unicorn-部署時未創建unicorn.sock文件

Question

嘗試部署時，出現“很抱歉，但出了點問題”屏幕。 以前它工作正常，但是當我嘗試對其進行更新時，遇到了這個問題。 這是我第一次部署任何東西，但我仍然不確定自己在做什么，因此我非常感謝我對我做錯的事情的一些投入。

我從unicorn.log得到以下錯誤

I, [2018-10-01T19:54:53.470419 #4905]  INFO -- : unlinking existing
socket=/home/deploy/production/appName/tmp/sockets
/bcrypt_unicorn.todo.sock
I, [2018-10-01T19:54:53.470635 #4905]  INFO -- : listening on addr=/home/deploy/production/appName/tmp/sockets/bcrypt_unicorn.todo.sock fd=10
I, [2018-10-01T19:54:53.470737 #4905]  INFO -- : worker=0 spawning...
I, [2018-10-01T19:54:53.471045 #4905]  INFO -- : worker=1 spawning...
I, [2018-10-01T19:54:53.471397 #4905]  INFO -- : master process ready
I, [2018-10-01T19:54:53.476589 #4908]  INFO -- : worker=0 spawned pid=4908
I, [2018-10-01T19:54:53.476714 #4908]  INFO -- : Refreshing Gem list
I, [2018-10-01T19:54:53.477787 #4910]  INFO -- : worker=1 spawned pid=4910
I, [2018-10-01T19:54:53.477910 #4910]  INFO -- : Refreshing Gem list
I, [2018-10-01T19:54:59.740522 #4908]  INFO -- : worker=0 ready
I, [2018-10-01T19:54:59.744825 #4910]  INFO -- : worker=1 ready

以及/var/log/nginx/error.log中的以下錯誤：

2018/10/01 20:00:41 [crit] 5067#5067: *2 connect() to unix:/home/deploy
/production/appName/tmp/sockets/bcrypto_unicorn.todo.sock failed
(2: No such file or directory) while connecting to upstream, client:
77.75.77.32, server: , request: "GET /genres/gaming HTTP/1.1", upstream:
"http://unix:/home/deploy/production/appName/tmp/sockets
/bcrypto_unicorn.todo.sock:/genres/gaming", host: "appName.com"

我用重啟了Nginx

sudo service nginx restart

重新加載更新的配置

sudo nginx -s reload

然后停止了正在運行的獨角獸進程

ps aux | grep "unicorn master"
kill -9 PID

然后提取更新的代碼以進行部署

git status
git stash save -u quick-fix
git pull origin master
git stash apply

然后遷移數據庫

RAILS_ENV=production rake db:migrate
RAILS_ENV=production rake assets:precompile

然后終於重啟了獨角獸

bundle exec unicorn -E production -c config/unicorn.rb -D

我的unicorn.rb文件如下：

app_path = "/home/deploy/production/appName"
working_directory app_path
pid app_path + "/tmp/pids/unicorn.pid"
stderr_path app_path + "/log/unicorn.log"
stdout_path app_path + "/log/production.log"
listen app_path + '/tmp/sockets/bcrypt_unicorn.todo.sock'
worker_processes 2
timeout 65

appName / config / nginx.conf

upstream unicorn {
  server unix:/tmp/sockets/bcrypto_unicorn.todo.sock fail_timeout=0;
}

server{
  listen 80 default deferred;
  root /home/deploy/production/appName/public;

  try_files $uri/index.html $uri @unicorn;

  location @unicorn{
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $http_host;
    proxy_redirect off;
    proxy_pass http://unicorn;
  }

  error_page 403 404 /404.html;

  error_page 500 502 503 504 /500.html;

  client_max_body_size 4G;
  keepalive_timeout 10;
}

和/etc/nginx/nginx.conf

user www-data;
worker_processes auto;
pid /run/nginx.pid;

events {
    worker_connections 768;
    # multi_accept on;
}

http {
    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_disable "msie6";

    # gzip_vary on;
    # gzip_proxied any;
    # gzip_comp_level 6;
    # gzip_buffers 16 8k;
    # gzip_http_version 1.1;
    # gzip_types text/plain text/css application/json    application/javascript text/xml applicati$

    ##
    # Virtual Host Configs
    ##

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

/ etc / nginx / sites-enabled / bcrypto

upstream bcrypto_unicorn {
    server unix:/home/deploy/production/appName/tmp/sockets/bcrypto_unicorn.todo.sock fa$
}

server {
    listen 80 default deferred;
    root /home/deploy/production/appName/public;

    location ^~ /assets/ {
        gzip_static on;
        expires max;
        add_header Cache-Control public;
    }

    try_files $uri/index.html $uri @bcrypto_unicorn;

    location @bcrypto_unicorn {
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;
        proxy_redirect off;
        proxy_pass http://bcrypto_unicorn;
    }

    error_page 422 500 502 503 504 /500.html;
    client_max_body_size 4G;
    keepalive_timeout 60;
}

有人可以指出我在這里做錯的方向嗎？

Answer 1

問題在於Nginx在Unicorn設置插座的地方尋找插座。

Nginx嘗試在以下位置找到套接字： /home/deploy/production/appName/tmp/sockets/byc2-master_unicorn.todo.sock而Unicorn配置將其設置為/tmp/appName_unicorn.todo.sock

為了解決該問題，兩條路徑必須相同。 所以，您需要將相同的路徑在/ etc / nginx的/啟用的站點- / bcrypto並通過unicorn.rb 監聽指令定義的一個上游指令

然后重新啟動Unicorn並重新加載Nginx

Answer 2

首先，檢查您的tmp/sockets文件夾是否存在。 如果沒有，請使用以下命令創建文件夾

mkdir /home/deploy/production/appName/tmp/sockets

然后，通過修改unicorn.rb將socket更改為與nginx相同的路徑

listen app_path + '/tmp/sockets/bcrypt_unicorn.todo.sock'

最后，重啟獨角獸

bundle exec unicorn -E production -c config/unicorn.rb -D