Capistrano+Nginx+Unicorn 自动部署Rails
配置你的服务器
你需要在你的服务器上安装Ruby的环境，你可以使用RVM或者是rbenv.
上传到github
这步需要将你的应用上传到github,在你的github上创建新的repository,然后在你本机代码位置执行下面的命令，初始化git仓库。
git init git add . git commit -m"<message>" git remote add origin [email protected]:<username>/<git repo>.git git push origin master
安装Capistrano
在你的Gemfile里添加下面的一行。
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gem'capistrano'
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然后执行
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bundle
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在你的项目目录里执行
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capify .
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执行结果
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examination-paper ➤ capify . git:master*
[add] writing'./Capfile'
[add] writing'./config/deploy.rb'
[done] capified!
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require"bundler/capistrano"
# Define your server here
server"<server>",:web,:app,:db, primary:true
# Set application settings
set:application,"<app_name>"
set:user,"<deployment_user>"# As defined on your server
set:deploy_to,"/home/#{user}/apps/#{application}"# Directoryinwhich the deployment will take place
set:deploy_via,:remote_cache
set:use_sudo,false
set:scm,"git"
set:repository,"[email protected]:<git_user>/#{application}.git"
set:branch,"master"
default_run_options[:pty] =true
ssh_options[:forward_agent] =true
after"deploy","deploy:cleanup"# keep only the last 5 releases
namespace:deploydo
%w[start stop restart].eachdo|command|
desc"#{command} unicorn server"
task command, roles::app, except: {no_release:true}do
run"/etc/init.d/unicorn_#{application} #{command}"# Using unicorn as the app server
end
end
task:setup_config, roles::appdo
sudo"ln -nfs #{current_path}/config/nginx.conf /etc/nginx/sites-enabled/#{application}"
sudo"ln -nfs #{current_path}/config/unicorn_ini.sh /etc/init.d/unicorn_#{application}"
run"mkdir -p #{shared_path}/config"
putFile.read("config/database.yml"),"#{shared_path}/config/database.yml"
puts"Now edit the config files in #{shared_path}."
end
after"deploy:setup","deploy:setup_config"
task:symlink_config, roles::appdo
run"ln -nfs #{shared_path}/config/database.yml #{release_path}/config/database.yml"
end
after"deploy:finalize_update","deploy:symlink_config"
desc"Make sure local git is in sync with remote."
task:check_revision, roles::webdo
unless`git rev-parseHEAD` == `git rev-parse origin/master`
puts"WARNING: HEAD is not the same as origin/master"
puts"Run `git push` to sync changes."
exit
end
end
before"deploy","deploy:check_revision"
end
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upstream unicorn {
server unix:/tmp/unicorn.<app_name>.sock fail_timeout=0;
}
server {
listen 80 default deferred;
server_name <your_servername>;
if($host ='<your_servername>') {
rewrite ^/(.*)$ http://<your_servername>/$1 permanent;
}
root/home/deployer/apps/<app_name>/current/public;
location ^~/assets/{
gzip_static on;
expires max;
add_header Cache-Control 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 500 502 503 504/500.html;
client_max_body_size 4G;
keepalive_timeout 10;
}
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# Define your root directory
root ="/home/deployer/apps/gifroll/current"
# Define worker directory for Unicorn
working_directory root
# Location of PID file
pid"#{root}/tmp/pids/unicorn.pid"
# Define Log paths
stderr_path"#{root}/log/unicorn.log"
stdout_path"#{root}/log/unicorn.log"
# Listen on a UNIX data socket
listen"/tmp/unicorn.gifroll.sock"
# 16 worker processes for production environment
worker_processes16
# Load rails before forking workers for better worker spawn time
preload_apptrue
# Restart workes hangin' out for more than 240 secs
timeout240
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最后
在config目录里，创建unicorn_init.sh ，添加下面的内容
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#!/bin/sh
### BEGIN INIT INFO
# Provides: unicorn
# Required-Start: $remote_fs $syslog
# Required-Stop: $remote_fs $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Manage unicorn server
# Description: Start, stop, restart unicorn server for a specific application.
### END INIT INFO
set-e
# Feel free to change any of the following variables for your app:
TIMEOUT=${TIMEOUT-60}
APP_ROOT=/home/deployer/apps/<app_name>/current
PID=$APP_ROOT/tmp/pids/unicorn.pid
CMD="cd $APP_ROOT; bundle exec unicorn -D -c $APP_ROOT/config/unicorn.rb -E production"
AS_USER=<user>
set-u
OLD_PIN="$PID.oldbin"
sig () {
test-s"$PID"&&kill-$1 `cat$PID`
}
oldsig () {
test-s $OLD_PIN &&kill-$1 `cat$OLD_PIN`
}
run () {
if["$(id -un)"="$AS_USER"];then
eval$1
else
su-c"$1"- $AS_USER
fi
}
case"$1"in
start)
sig 0 &&echo>&2"Already running"&&exit0
run"$CMD"
;;
stop)
sig QUIT &&exit0
echo>&2"Not running"
;;
force-stop)
sig TERM &&exit0
echo>&2"Not running"
;;
restart|reload)
sig HUP &&echoreloaded OK &&exit0
echo>&2"Couldn't reload, starting '$CMD' instead"
run"$CMD"
;;
upgrade)
ifsig USR2 &&sleep2 && sig 0 && oldsig QUIT
then
n=$TIMEOUT
whiletest-s $OLD_PIN &&test$n -ge0
do
printf'.'&&sleep1 && n=$(( $n - 1 ))
done
echo
iftest$n -lt 0 &&test-s $OLD_PIN
then
echo>&2"$OLD_PIN still exists after $TIMEOUT seconds"
exit1
fi
exit0
fi
echo>&2"Couldn't upgrade, starting '$CMD' instead"
run"$CMD"
;;
reopen-logs)
sig USR1
;;
*)
echo>&2"Usage: $0 <start|stop|restart|upgrade|force-stop|reopen-logs>"
exit1
;;
esac
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把你最新的改动push到github,然后执行下面的命令
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cap deploy:setup
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你需要给服务器访问git 代码库的权限。
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ssh-add
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cap deploy:cold
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