Memcached On dotCloud
This recipe provides memcached for dotCloud. While it will allow you to use memcached with your dotCloud app, it has three caveats:
- There is no support for authentication. Well, memcached itself does not support authentication anyway, so this should not be a big surprise. If you need to secure access to your memcached, you need to subscribe to dotCloud's Enterprise Plan (at least for now). At some point, we will also provide recipes allowing secure operation under the Free and Pro plan.
- The address of your memcached server won't show up in environment.json. This limitation will soon be lifted; but meanwhile, you have to hardcode your memcached server address in your app.
- As a consequence of the previous point, scaling is not officially supported. While you can get it to work with a few tricks, we recommend that you wait a bit for official scaled memcached support if you need it.
If this didn't deter you from using memcached on dotCloud, then read ahead!
How It Works
It uses the custom service type, which allows custom package install. It also uses the all-new "custom TCP port" feature to expose the memcached port.
How To Use It (Standalone)
Just use our (un)patented Clone-And-DotCloud-Push method:
git clone git://github.com/jpetazzo/memcached-on-dotcloud.git dotcloud push memcached memcached-on-dotcloud
At the end of the push, run dotcloud info memcached.memcached to see the connection parameters:
- name: memcached url: tcp://memcached-myusername.dotcloud.com:12345
How To Use It (In Your App)
Add the dotcloud.yml supplied here to your own dotcloud.yml. Push as usual, and use dotcloud info at the end of the push to see the host and port number to use to connect to your memcached service. Enjoy!