.1.第一步su root ***安装依赖包yum -y install gcc yum install flex autoconf zlib curl zlib-devel curl-devel bzip2 bzip2-devel ncurses-devel libjpeg-devel libpng-devel libtiff-devel freetype-devel pam-devel gcc+ gcc-c++ libxml2 libxml2-devel libxslt libxslt-devel （说明：以上包都得安装上，否则最后rails 环境会出错）2.安装rubywget ftp://ftp.ruby-lang.org//pub/ruby/1.9/ruby-1.9.2-p0.tar.gz tar -zxvf ruby-1.9.2-p0.tar.gz cd ruby-1.9.2-p0 ./configure –prefix=/usr/local/ruby make make test make install 3.ruby 安装后 gem list 出现错误ERROR: Loading command: list (LoadError) no such file to load — zlib ERROR: While executing gem … (NameError) uninitialized constant Gem::Commands::ListCommand 解决办法： sudo apt-get install zlib1g-dev (2)然后到源码目录的ext/zlib下 （刚才解压的ruby1.9.2目录） sudo ruby extconf.rb （需要管理员权限） make sudo make install 4. sudo: ruby: command not found建立以下软链接:sudo ln -s /usr/local/ruby/bin/ruby /usr/bin/ruby sudo ln -s /usr/local/ruby/bin/gem /usr/bin/gem 5. gem install rails6. 安装 mysql三条命令实现安装 mysqlyum install mysql-server yum install mysql yum install mysql-devel 默认安装的mysql 密码是空 ， 所以需要修改密码mysql -u root -p 回车进入 mysql> USE mysql; mysql> UPDATE user SET Password=PASSWORD(‘new-password’) WHERE user=’root’; mysql> FLUSH PRIVILEGES; 重启 mysql service /etc/init.d/mysqld restart ERROR 2002 (HY000): Can’t connect to local MySQL server through socket ‘/ var/lib/mysql/mysql.sock’ (2) sudo /etc/init.d/mysqld start 7. 安装git和部署项目yum install git-core ssh-keygen -t rsa 如果是从别的地方拷贝过来的，需 进行权限操作：chmod 777 id_rsa id_rsa.pub8.克隆服务器项目(1).rails 项目为了避免麻烦的权限，一般部署在 ～/ 目录下mkdir projects && cd .. git clone git@192.168.8.201:entos.git cd entos 切换到开发分支 git checkout develop bundle install mv config/database.yml.example database.yml (2) 修改示例数据库配置文件vi config/database.yml edit root# password 建库，数据迁移 bundle exec rake RAILS_ENV=production db:create:all bundle exec rake RAILS_ENV=production db:migrate(3) 启动服务并测试rails s本地测试rails 环境是否搭建成功浏览器访问:localhost:3000 是否出现首页（4） 再此期间遇到的问题：a 如果出现：errors:libxml2 is missing. please visit http://nokogiri.org/tutorials/installing_nokogiri.html for help with installing dependencies.解决方法：sudo yum install -y libxml2 libxml2-devel libxslt libxslt-devel （此时要有 -y 参数，否则安装出错）b 如果出现 ：make: g++: Command not found解决方法： yum -y install gcc+ gcc-c++c 如果出现： no such file to load — openssl (LoadError)解决办法： cd ~/Downloads/ruby-1.9.2-p180/ext/openssl (assuming you extracted the ruby tar to ~/Downloads)$ ruby extconf.rb && make && sudo make install9. nginx+unicorn 部署：(1) install nginxwget http://nginx.org/download/nginx-1.0.10.tar.gz sudo ./configure –prefix=/usr/local/nginx make && make install 启动 ：sudo /usr/local/nginx/sbin/nginx 停止：sudo /usr/local/nginx/sbin/nginx -s stop 重启：sudo /usr/local/nginx/sbin/nginx -s reload（2）安装遇到的问题./configure: error: the HTTP rewrite module requires the PCRE library.安装pcre-devel解决问题yum -y install pcre-devel（3）安装Unicorngem install unicorn 获取 unicorn 配置文件 curl -o config/unicorn.rb https://raw.github.com/defunkt/unicorn/master/examples/unicorn.conf.rb 修改配置文件：vi config/unicorn.rbapp_path=”/home/dong/projects/entos” working_directory app_path # available in 0.94.0+ listen app_path+”/tmp/nginx/sockets/unicorn.sock”, :backlog => 64 (/tmp/nginx/sockets 需提前创建该文件目录，特别注意：unicorn.sock 不用创建，当unicorn_rails 启动后，会自动生成该文件*.sock) listen 8080, :tcp_nopush => true timeout 30 pid app_path+”/tmp/pids/unicorn.pid” stderr_path app_path+”/log/unicorn.stderr.log” stdout_path app_path+”/log/unicorn.stdout.log” (须在项目log目录下创建 unicorn.stderr.log ，unicorn.stdout.log，两个文件)touch log/unicorn.stderr.logtouch log/unicorn.stdout.log启动 unicorn_railsunicorn_rails config/unicorn.rb -E production -D sudo gedit /usr/local/nginx/conf/nginx.conf关键代码配置：user root root; http{ upstream unicorn_server { server unix:/home/dong/projects/entos/tmp/nginx/sockets/unicorn.sock fail_timeout=0; } server { listen 80; server_name www.entsea.com; root /home/dong/projects/entos/public; #charset koi8-r; #access_log logs/host.access.log main; location / { proxy_redirect off; proxy_set_header Host $host; proxy_set_header X-Forwarded-Host $host; proxy_set_header X-Forwarded-Server $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_buffering on; proxy_pass http://unicorn_server; #关键部分，如果没此配置：则会出现 nginx 403 Forbidden ，即使放到最大权限也无济于事 } } } 如果是本地测试，需添加 链接vim /etc/hosts127.0.0.1 www.entsea.com测试：浏览器输入 www.entsea.com 会看到首页10.centos 安装中文输入法yum install “@Chinese Support”Preferences-Input method-最后选择添加…生活是一段奇妙的旅行，就在那一去无返的火车上。
centos6 安装ruby on rails（nginx+unicorn）（建立环境依赖）
