Heroku WP 介绍
Heroku WP 是一个用来在 Heroku 上安装和运行 WordPress 的模板，侧重于安全和速度，使用官方 Heroku 堆栈。
基于如下技术构建：
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nginx - For serving web content.
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HHVM - A virtual machine designed to serve Hack and PHP.
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MySQL - Provided by the ClearDB add-on.
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Memcached - Provided by the MemCachier add-on.
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Composer - A dependency manager to make installing and managing plugins easier.
In additon repository comes bundled with the following plugins.
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SASL object cache - For running with MemCachier add-on
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Batcache - For full page output caching
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SSL Domain Alias - For sending SSLed traffic to a different domain (needed to send WP admin traffic to Heroku over SSL directly.)