This article explains how to enable and disable services on an AutoPilot deployment. For example, you might want to host a Node app and need every service except redis-sessions turned off.
Every node in an AutoPilot deployment registers a set of roles, and those roles determine which services run on it.
Whether a node gets a given role comes down to CloudFormation parameters that mark each service as enabled or disabled.
Some of these parameters are exposed. For example, switching the cache application to Varnish toggles the Varnish role on a server. Another example applies to clusters: choosing to deploy the database in RDS means the database role won't be enabled on any of the nodes.
Other parameters aren't exposed, though they can be modified by JetRails support.
If you have a specific need to disable services that aren't available to you, please reach out by opening support ticket.
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