Mina.
Compared to the complex commands of Capistrano, this Mina is really super simple, and you can figure it out in just an hour. It's also very fast.
1 gem install mina #in the root directory of the rails app
2 mina init #generate config/deploy.rb
3 mina setup
4 mina deploy #modify deploy.rb, you can remove some unnecessary commands
5 mina xxxx #xxxx is a command you write yourself, deploy is also.
In addition, because Capistrano has been upgraded to 3.01, the original scripts cannot be used.
Solution:
1 gem uninstall capistrano, choose to remove 3.0.1.