cache_settings.rst

title:	Customizing cache
description:	Learn how to tune custom Deis settings.

Customizing cache

The following settings are tunable for the :ref:`cache` component. Values are stored in etcd.

Dependencies

Requires: none

Required by: :ref:`controller <controller_settings>`, :ref:`registry <registry_settings>`

Considerations: none

Settings set by cache

The following etcd keys are set by the cache component, typically in its /bin/boot script.

setting	description
/deis/cache/host	IP address of the host running cache
/deis/cache/port	port used by the cache service (default: 6379)

Settings used by cache

Important

All changes require a restart.

The following etcd keys are used by the cache component.

setting	description
/deis/cache/maxmemory	maximum memory used for caching (default: 50mb)

Using a custom cache image

You can use a custom Docker image for the cache component instead of the image supplied with Deis:

$ deisctl config cache set image=myaccount/myimage:latest

This will pull the image from the public Docker registry. You can also pull from a private registry:

$ deisctl config cache set image=registry.mydomain.org:5000/myaccount/myimage:latest

Be sure that your custom image functions in the same way as the stock cache image shipped with Deis. Specifically, ensure that it sets and reads appropriate etcd keys.