Nginx + unicorn 运行多个Rails应用程序

PS：第一次写的很详细，可惜发布失败，然后全没了，这是第二次，表示只贴代码，剩下的自己领悟好了，这就是所谓的一鼓作气再而衰吧，希望没有第三次。

版本：

　　ruby 2.1.0

　　rails 4.0.2

　　nginx 1.5.8 mainline version

　　unicorn 4.7.0

/usr/local/nginx/conf/nginx.conf

 1 user NginxUser NginxGroup;
 2 worker_processes  1;
 3 
 4 events {
 5     worker_connections  1024;
 6 }
 7 
 8 http {
 9     include       mime.types;
10     include       /usr/local/nginx/conf/conf.d/*.conf;
11     default_type  application/octet-stream;
12 
13     sendfile        on;
14     #tcp_nopush     on;
15 
16     keepalive_timeout  65;
17 
18     gzip  on;
19 }

/usr/local/nginx/conf/conf.d/guorj.conf

 1 upstream guorj_rails_unicorn_server {
 2   server unix:/tmp/guorj_unicorn.sock fail_timeout=0;
 3   #server 127.0.0.1:8081 fail_timeout=0;
 4 }
 5 server {
 6   listen 80;
 7   client_max_body_size 4G;
 8   server_name          guorj.com;
 9   keepalive_timeout    5;
10   root                 /home/NginxUser/www/guorj/public;
11   access_log           /home/NginxUser/www/guorj/log/nginx_access.log;
12   error_log            /home/NginxUser/www/guorj/log/nginx_error.log;
13   rewrite_log          on;
14   index                index.html;
15 
16   location / {
17     proxy_set_header Host $host;
18     proxy_set_header X-Forwarded-Host $host;
19     proxy_set_header X-Real-IP $remote_addr;
20     proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
21     proxy_buffering  on;
22     proxy_redirect   off;
23     proxy_pass       http://guorj_rails_unicorn_server;
24   }
25   #Rails error pages
26   location =/500.html {
27     root /home/NginxUser/www/guorj/public;
28   }
29 }

/home/NginxUser/www/guorj/config/unicorn.rb

  1 # Sample verbose configuration file for Unicorn (not Rack)
  2 #
  3 # This configuration file documents many features of Unicorn
  4 # that may not be needed for some applications. See
  5 # http://unicorn.bogomips.org/examples/unicorn.conf.minimal.rb
  6 # for a much simpler configuration file.
  7 #
  8 # See http://unicorn.bogomips.org/Unicorn/Configurator.html for complete
  9 # documentation.
 10 # can't specify rails env
 11 rails_env = ENV["RAILS_ENV"] || "production"
 12 
 13 # Use at least one worker per core if you're on a dedicated server,
 14 # more will usually help for _short_ waits on databases/caches.
 15 worker_processes 4
 16 
 17 # Since Unicorn is never exposed to outside clients, it does not need to
 18 # run on the standard HTTP port (80), there is no reason to start Unicorn
 19 # as root unless it's from system init scripts.
 20 # If running the master process as root and the workers as an unprivileged
 21 # user, do this to switch euid/egid in the workers (also chowns logs):
 22 # user "unprivileged_user", "unprivileged_group"
 23 
 24 # Help ensure your application will always spawn in the symlinked
 25 # "current" directory that Capistrano sets up.
 26 
 27 app_root = File.expand_path('.')
 28 
 29 working_directory app_root #"/path/to/app/current" # available in 0.94.0+
 30 
 31 # listen on both a Unix domain socket and a TCP port,
 32 # we use a shorter backlog for quicker failover when busy
 33 #listen "/path/to/.unicorn.sock", :backlog => 64
 34 #listen "#{app_root}/tmp/sockets/unicorn.sock", :backlog => 64
 35 listen "/tmp/guorj_unicorn.sock", :backlog => 64
 36 listen 8081, :tcp_nopush => false # true
 37 
 38 # nuke workers after 30 seconds instead of 60 seconds (the default)
 39 timeout 120 # 30
 40 
 41 # feel free to point this anywhere accessible on the filesystem
 42 #pid "/path/to/app/shared/pids/unicorn.pid"
 43 #pid "#{app_root}/tmp/pids/unicorn.pid"
 44 pid "/tmp/guorj_unicorn.pid"
 45 
 46 # By default, the Unicorn logger will write to stderr.
 47 # Additionally, ome applications/frameworks log to stderr or stdout,
 48 # so prevent them from going to /dev/null when daemonized here:
 49 #stderr_path "/path/to/app/shared/log/unicorn.stderr.log"
 50 #stdout_path "/path/to/app/shared/log/unicorn.stdout.log"
 51 stderr_path "#{app_root}/log/unicorn.stderr.log"
 52 stdout_path "#{app_root}/log/unicorn.stdout.log"
 53 
 54 # combine Ruby 2.0.0dev or REE with "preload_app true" for memory savings
 55 # http://rubyenterpriseedition.com/faq.html#adapt_apps_for_cow
 56 preload_app true
 57 GC.respond_to?(:copy_on_write_friendly=) and
 58   GC.copy_on_write_friendly = true
 59 
 60 # Enable this flag to have unicorn test client connections by writing the
 61 # beginning of the HTTP headers before calling the application.  This
 62 # prevents calling the application for connections that have disconnected
 63 # while queued.  This is only guaranteed to detect clients on the same
 64 # host unicorn runs on, and unlikely to detect disconnects even on a
 65 # fast LAN.
 66 # check_client_connection false
 67 
 68 before_fork do |server, worker|
 69   # the following is highly recomended for Rails + "preload_app true"
 70   # as there's no need for the master process to hold a connection
 71   defined?(ActiveRecord::Base) and
 72     ActiveRecord::Base.connection.disconnect!
 73 
 74   # The following is only recommended for memory/DB-constrained
 75   # installations.  It is not needed if your system can house
 76   # twice as many worker_processes as you have configured.
 77   #
 78   # # This allows a new master process to incrementally
 79   # # phase out the old master process with SIGTTOU to avoid a
 80   # # thundering herd (especially in the "preload_app false" case)
 81   # # when doing a transparent upgrade.  The last worker spawned
 82   # # will then kill off the old master process with a SIGQUIT.
 83    old_pid = "#{server.config[:pid]}.oldbin"
 84    if old_pid != server.pid
 85      begin
 86        sig = (worker.nr + 1) >= server.worker_processes ? :QUIT : :TTOU
 87        Process.kill(sig, File.read(old_pid).to_i)
 88      rescue Errno::ENOENT, Errno::ESRCH
 89      end
 90    end
 91   #
 92   # Throttle the master from forking too quickly by sleeping.  Due
 93   # to the implementation of standard Unix signal handlers, this
 94   # helps (but does not completely) prevent identical, repeated signals
 95   # from being lost when the receiving process is busy.
 96    sleep 1
 97 end
 98 
 99 after_fork do |server, worker|
100   # per-process listener ports for debugging/admin/migrations
101   # addr = "127.0.0.1:#{9293 + worker.nr}"
102   # server.listen(addr, :tries => -1, :delay => 5, :tcp_nopush => true)
103 
104   # the following is *required* for Rails + "preload_app true",
105   defined?(ActiveRecord::Base) and
106     ActiveRecord::Base.establish_connection
107 
108   # if preload_app is true, then you may also want to check and
109   # restart any other shared sockets/descriptors such as Memcached,
110   # and Redis.  TokyoCabinet file handles are safe to reuse
111   # between any number of forked children (assuming your kernel
112   # correctly implements pread()/pwrite() system calls)
113 end

然后运行unicorn

unicorn_rails -c /home/NginxUser/www/guorj/config/unicorn.rb -E production -D

添加第二个rails项目（请自行和第一个项目的配置对比不同，被网速把激情磨灭了）

/usr/local/nginx/conf/conf.d/wguorj.conf

 1 upstream wguorj_rails_unicorn_server {
 2   server unix:/tmp/wguorj_unicorn.sock fail_timeout=0;
 3   #server 127.0.0.1:8082 fail_timeout=0;
 4 }
 5 server {
 6   listen 80;
 7   client_max_body_size 4G;
 8   server_name          www.guorj.com;
 9   keepalive_timeout    5;
10   root                 /home/NginxUser/www/wguorj/public;
11   access_log           /home/NginxUser/www/wguorj/log/nginx_access.log;
12   error_log            /home/NginxUser/www/wguorj/log/nginx_error.log;
13   rewrite_log          on;
14   index                index.html;
15 
16   location / {
17     proxy_set_header Host $host;
18     proxy_set_header X-Forwarded-Host $host;
19     proxy_set_header X-Real-IP $remote_addr;
20     proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
21     proxy_buffering  on;
22     proxy_redirect   off;
23     proxy_pass       http://wguorj_rails_unicorn_server;
24   }
25   #Rails error pages
26   location =/500.html {
27     root /home/NginxUser/www/wguorj/public;
28   }
29 }

/home/NginxUser/www/wguorj/config/unicorn.rb

  1 # Sample verbose configuration file for Unicorn (not Rack)
  2 #
  3 # This configuration file documents many features of Unicorn
  4 # that may not be needed for some applications. See
  5 # http://unicorn.bogomips.org/examples/unicorn.conf.minimal.rb
  6 # for a much simpler configuration file.
  7 #
  8 # See http://unicorn.bogomips.org/Unicorn/Configurator.html for complete
  9 # documentation.
 10 # can't specify rails env
 11 rails_env = ENV["RAILS_ENV"] || "production"
 12 
 13 # Use at least one worker per core if you're on a dedicated server,
 14 # more will usually help for _short_ waits on databases/caches.
 15 worker_processes 4
 16 
 17 # Since Unicorn is never exposed to outside clients, it does not need to
 18 # run on the standard HTTP port (80), there is no reason to start Unicorn
 19 # as root unless it's from system init scripts.
 20 # If running the master process as root and the workers as an unprivileged
 21 # user, do this to switch euid/egid in the workers (also chowns logs):
 22 # user "unprivileged_user", "unprivileged_group"
 23 
 24 # Help ensure your application will always spawn in the symlinked
 25 # "current" directory that Capistrano sets up.
 26 
 27 app_root = File.expand_path('.')
 28 
 29 working_directory app_root #"/path/to/app/current" # available in 0.94.0+
 30 
 31 # listen on both a Unix domain socket and a TCP port,
 32 # we use a shorter backlog for quicker failover when busy
 33 #listen "/path/to/.unicorn.sock", :backlog => 64
 34 #listen "#{app_root}/tmp/sockets/unicorn.sock", :backlog => 64
 35 listen "/tmp/wguorj_unicorn.sock", :backlog => 64
 36 listen 8082, :tcp_nopush => false # true
 37 
 38 # nuke workers after 30 seconds instead of 60 seconds (the default)
 39 timeout 120 # 30
 40 
 41 # feel free to point this anywhere accessible on the filesystem
 42 #pid "/path/to/app/shared/pids/unicorn.pid"
 43 #pid "#{app_root}/tmp/pids/unicorn.pid"
 44 pid "/tmp/wguorj_unicorn.pid"
 45 
 46 # By default, the Unicorn logger will write to stderr.
 47 # Additionally, ome applications/frameworks log to stderr or stdout,
 48 # so prevent them from going to /dev/null when daemonized here:
 49 #stderr_path "/path/to/app/shared/log/unicorn.stderr.log"
 50 #stdout_path "/path/to/app/shared/log/unicorn.stdout.log"
 51 stderr_path "#{app_root}/log/unicorn.stderr.log"
 52 stdout_path "#{app_root}/log/unicorn.stdout.log"
 53 
 54 # combine Ruby 2.0.0dev or REE with "preload_app true" for memory savings
 55 # http://rubyenterpriseedition.com/faq.html#adapt_apps_for_cow
 56 preload_app true
 57 GC.respond_to?(:copy_on_write_friendly=) and
 58   GC.copy_on_write_friendly = true
 59 
 60 # Enable this flag to have unicorn test client connections by writing the
 61 # beginning of the HTTP headers before calling the application.  This
 62 # prevents calling the application for connections that have disconnected
 63 # while queued.  This is only guaranteed to detect clients on the same
 64 # host unicorn runs on, and unlikely to detect disconnects even on a
 65 # fast LAN.
 66 # check_client_connection false
 67 
 68 before_fork do |server, worker|
 69   # the following is highly recomended for Rails + "preload_app true"
 70   # as there's no need for the master process to hold a connection
 71   defined?(ActiveRecord::Base) and
 72     ActiveRecord::Base.connection.disconnect!
 73 
 74   # The following is only recommended for memory/DB-constrained
 75   # installations.  It is not needed if your system can house
 76   # twice as many worker_processes as you have configured.
 77   #
 78   # # This allows a new master process to incrementally
 79   # # phase out the old master process with SIGTTOU to avoid a
 80   # # thundering herd (especially in the "preload_app false" case)
 81   # # when doing a transparent upgrade.  The last worker spawned
 82   # # will then kill off the old master process with a SIGQUIT.
 83    old_pid = "#{server.config[:pid]}.oldbin"
 84    if old_pid != server.pid
 85      begin
 86        sig = (worker.nr + 1) >= server.worker_processes ? :QUIT : :TTOU
 87        Process.kill(sig, File.read(old_pid).to_i)
 88      rescue Errno::ENOENT, Errno::ESRCH
 89      end
 90    end
 91   #
 92   # Throttle the master from forking too quickly by sleeping.  Due
 93   # to the implementation of standard Unix signal handlers, this
 94   # helps (but does not completely) prevent identical, repeated signals
 95   # from being lost when the receiving process is busy.
 96    sleep 1
 97 end
 98 
 99 after_fork do |server, worker|
100   # per-process listener ports for debugging/admin/migrations
101   # addr = "127.0.0.1:#{9293 + worker.nr}"
102   # server.listen(addr, :tries => -1, :delay => 5, :tcp_nopush => true)
103 
104   # the following is *required* for Rails + "preload_app true",
105   defined?(ActiveRecord::Base) and
106     ActiveRecord::Base.establish_connection
107 
108   # if preload_app is true, then you may also want to check and
109   # restart any other shared sockets/descriptors such as Memcached,
110   # and Redis.  TokyoCabinet file handles are safe to reuse
111   # between any number of forked children (assuming your kernel
112   # correctly implements pread()/pwrite() system calls)
113 end

运行第二个rails程序记得重启nginx

unicorn_rails -c /home/NginxUser/www/wguorj/config/unicorn.rb -E production -D

Nginx + unicorn 运行多个Rails应用程序

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