aws centos apache + passenger +

安装的话可以参考： https://www.phusionpassenger.com/library/install/apache/install/oss/el7/ 进行安装。

这次主要是为了说明几个安装过程中遇到的坑

坑1

[Wed Jul 11 00:59:52.928212 2018] [passenger:error] [pid 21692] *** Passenger could not be initialized because of this error: Unable to start Phusion Passenger: Support binary PassengerAgent not found (tried: /usr/lib64/passenger/support-binaries/PassengerAgent and /root/.passenger/support-binaries/5.3.3/PassengerAgent). There may be different causes for this:\n\n - Your 'PassengerRoot' setting is set to the wrong value. Please see https://www.phusionpassenger.com/library/config/apache/reference/#passengerroot to learn how to fix the value.\n - The PassengerAgent binary is not compiled. Please run this command to compile it: /usr/bin/passenger-config compile-agent\n - Your Passenger installation is broken or incomplete. Please reinstall Passenger.

• 原因是：因为之前有安装passenger失败的过程，所以才导致的问题。

• 卸载办法：

gem uninstall passenger

sudo yum remove -y passenger mod_passenger

Note：卸载可以参考： https://www.phusionpassenger.com/library/install/apache/uninstall/oss/

坑2：

安装好了之后，通过capistrino部署代码的时候，发现/var/ww 没有权限，修改办法：

sudo chown deploy:deploy /var/www/