CentOS6.4でRuby2.0+Rails4+pumaデーモン+Nginx


Gitlabの設定を参考にconfig/puma.rb, /etc/init.d/puma-myproject, /etc/nginx/conf.d/myproject.confを作成すればOKでした.

### config/puma.rb

```rb
# Start Puma with next command:
# RAILS_ENV=production bundle exec puma -C ./config/puma.rb

# uncomment and customize to run in non-root path
# note that config/puma.yml web path should also be changed
application_path = "#{File.expand_path("../..", __FILE__)}"

# The directory to operate out of.
#
# The default is the current directory.
#
directory application_path

# Set the environment in which the rack's app will run.
#
# The default is “development”.
#
environment 'production'

# Daemonize the server into the background. Highly suggest that
# this be combined with “pidfile” and “stdout_redirect”.
#
# The default is “false”.
#
daemonize true

# Store the pid of the server in the file at “path”.
#
pidfile "#{application_path}/tmp/pids/puma.pid"

# Use “path” as the file to store the server info state. This is
# used by “pumactl” to query and control the server.
#
state_path "#{application_path}/tmp/pids/puma.state"

# Redirect STDOUT and STDERR to files specified. The 3rd parameter
# (“append”) specifies whether the output is appended, the default is
# “false”.
#
stdout_redirect "#{application_path}/log/puma.stdout.log", "#{application_path}/log/puma.stderr.log"
# stdout_redirect '/u/apps/lolcat/log/stdout', '/u/apps/lolcat/log/stderr', true

# Disable request logging.
#
# The default is “false”.
#
# quiet

# Configure “min” to be the minimum number of threads to use to answer
# requests and “max” the maximum.
#
# The default is “0, 16”.
#
# threads 0, 16

# Bind the server to “url”. “tcp://”, “unix://” and “ssl://” are the only
# accepted protocols.
#
# The default is “tcp://0.0.0.0:9292”.
#
# bind 'tcp://0.0.0.0:9292'
bind "unix://#{application_path}/tmp/sockets/puma.socket"

# Instead of “bind 'ssl://127.0.0.1:9292?key=path_to_key&cert=path_to_cert'” you
# can also use the “ssl_bind” option.
#
# ssl_bind '127.0.0.1', '9292', { key: path_to_key, cert: path_to_cert }

# Code to run before doing a restart. This code should
# close log files, database connections, etc.
#
# This can be called multiple times to add code each time.
#
# on_restart do
#   puts 'On restart...'
# end

# Command to use to restart puma. This should be just how to
# load puma itself (ie. 'ruby -Ilib bin/puma'), not the arguments
# to puma, as those are the same as the original process.
#
# restart_command '/u/app/lolcat/bin/restart_puma'

# === Puma control rack application ===

# Start the puma control rack application on “url”. This application can
# be communicated with to control the main server. Additionally, you can
# provide an authentication token, so all requests to the control server
# will need to include that token as a query parameter. This allows for
# simple authentication.
#
# Check out https://github.com/puma/puma/blob/master/lib/puma/app/status.rb
# to see what the app has available.
#
# activate_control_app 'unix:///var/run/pumactl.sock'
# activate_control_app 'unix:///var/run/pumactl.sock', { auth_token: '12345' }
# activate_control_app 'unix:///var/run/pumactl.sock', { no_token: true }
```

### /etc/init.d/puma-myproject

```bash
#!/bin/bash
#
# puma-myproject

# chkconfig: 2345 82 55
# processname: puma-myproject
# description: Runs puma-myproject for nginx integration.

# Include RedHat function library
. /etc/rc.d/init.d/functions

# The name of the service
NAME=puma-myproject

# The username and path to the myapp source
USER=rails
APP_PATH=/path/to/myproject

# The PID and LOCK files used by puma and sidekiq
UPID=$APP_PATH/tmp/pids/puma.pid
ULOCK=/var/lock/subsys/$NAME

# The options to use when running puma
OPTS="-C $APP_PATH/config/puma.rb -e production"

# Ruby related path update
RUBY_PATH_PATCH="PATH=$PATH:/usr/local/bin:/usr/local/lib && export PATH && "
BUNDLE_CMD=bundle
PUMA_CMD=puma

start() {
  cd $APP_PATH

  # Start puma
  echo -n $"Starting $NAME: "
  daemon --pidfile=$UPID --user=$USER "$RUBY_PATH_PATCH $BUNDLE_CMD exec $PUMA_CMD $OPTS"
  puma=$?
  [ $puma -eq 0 ] && touch $ULOCK
  echo

  return $puma
}

stop() {
  cd $APP_PATH

  # Stop puma
  echo -n $"Stopping $NAME: "
  killproc -p $UPID
  puma=$?
  [ $puma -eq 0 ] && rm -f $ULOCK
  echo

  return $puma
}

restart() {
  stop
  start
}

get_status() {
  status -p $UPID $NAME
}

query_status() {
  get_status >/dev/null 2>&1
}

case "$1" in
  start)
    query_status && exit 0
    start
    ;;
  stop)
    query_status || exit 0
    stop
    ;;
  restart)
    restart
    ;;
  status)
    get_status
    exit $?
    ;;
  *)
    N=/etc/init.d/$NAME
    echo "Usage: $N {start|stop|restart|status}" >&2
    exit 1
    ;;
esac

exit 0
```

起動スクリプトを作成したら以下のように起動＆停止を確認します.

```
$ sudo /etc/init.d/puma-myproject status
puma-myproject は停止しています
```
```
$ sudo /etc/init.d/puma-myproject start
Starting puma-trendword: Puma starting in single mode...
* Version 2.8.2 (ruby 2.0.0-p481), codename: Sir Edmund Percival Hillary
* Min threads: 0, max threads: 16
* Environment: production
* Listening on unix:///path/to/myproject/tmp/sockets/puma.socket
* Daemonizing...
                                                        [  OK  ]
```
```
$ sudo /etc/init.d/puma-myproject status
puma-myproject (pid  7514) を実行中...
```
```
$ sudo /etc/init.d/puma-myproject stop
Stopping puma-myproject:                                [  OK  ]
```
```
$ sudo /etc/init.d/puma-myproject status
puma-myproject は停止しています
```


### /etc/nginx/conf.d/myproject.conf

```
upstream myproject {
  server unix:/home/git/myproject/tmp/sockets/myproject.socket;
}

server {
  listen myhost:80 default_server;
  server_name myhost;
  root /home/git/myproject/public;

  # individual nginx logs for this myproject vhost
  access_log  /var/log/nginx/myproject_access.log;
  error_log   /var/log/nginx/myproject_error.log;

  location /myproject {
    # serve static files from defined root folder;.
    # @myproject is a named location for the upstream fallback, see below
    try_files $uri $uri/index.html $uri.html @myproject;
  }

  # if a file, which is not found in the root folder is requested,
  # then the proxy pass the request to the upsteam (myproject unicorn)
  location @myproject {
    proxy_read_timeout 300; # https://github.com/myprojecthq/myprojecthq/issues/694
    proxy_connect_timeout 300; # https://github.com/myprojecthq/myprojecthq/issues/694
    proxy_redirect     off;

    proxy_set_header   X-Forwarded-Proto $scheme;
    proxy_set_header   Host              $http_host;
    proxy_set_header   X-Real-IP         $remote_addr;

    proxy_pass http://myproject;
  }
}
```

Nginx設定後に設定を反映すればOKです.