Heroku是用git来管理项目的,另外还要用到ssh来登录,这两个工具请自行安装。
要用Heroku,当然就要安装它了。$ sudo gem install heroku先要生成一个公钥,使用命令:$ ssh-keygen -t rsaGenerating public/private rsa key pair.Enter file in which to save the key (/home/user/.ssh/id_rsa):Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /home/user/.ssh/id_rsa.Your public key has been saved in /home/user/.ssh/id_rsa.pub.The key fingerprint is:a6:88:0a:bb:74:70:c6:e0:d5:49:65:e3:04:d5:6c:3e 把公钥加入到Heroku$ heroku keys:addUploading ssh public key /home/user/.ssh/id_rsa.pub如果想删除公钥,可以用命令:$ heroku keys:remove 查看公钥,用命令:$ heroku keys现在就可以创建一个项目了(预先要安装好rails)。$ rails myapp$ git init$ git add .$ git commit -m "my first commit"Created initial commit 5df2d09: my first commit44 files changed, 8393 insertions(+), 0 deletions(-)create mode 100644 READMEcreate mode 100644 Rakefilecreate mode 100644 app/controllers/application.rb...把这个项目创建到Heroku上。$ heroku create myappEnter your Heroku credentials.Email: Password: Uploading ssh public key /home/user/.ssh/id_rsa.pub(当第一次运行heroku命令时,会创建~/.heroku/credentials文件,这个文件记录了你输入的用户名和密码,这个是在Heroku注册的用户名和密码。)接下来运行:$ git push heroku masterCounting objects: 65, done.Compressing objects: 100% (58/58), done.Writing objects: 100% (65/65), 80.54 KiB, done.Total 65 (delta 14), reused 0 (delta 0)-----> Heroku receiving push-----> Rails app detectedCompiled slug size is 0.1MB-----> Launching....... doneApp deployed to HerokuTo git@heroku.com:vivid-mountain-91.git* [new branch] master -> master再做一个数据库迁移:$ heroku rake db:migrate现在就可以像平常使用Rails一样编写程序了。更新代码可以用:$ git push herku将本地数据更新到Heroku网站上:$ heroku db:push(这个命令会使用taps,如果没有安装,请先安装。)要打开网页浏览,就可以用$ heroku open