milter
Overview
This relation interface specification describes the expected behavior of charms integrating over the milter Juju interface to provide or consume a mail filter (milter).
Usage
In most cases, this will be accomplished by manually parsing the relation data, given its simple nature.
Direction
The milter interface implements a provider/requirer pattern.
The requirer is a charm that requires Milter details to connect to a Milter server, and the provider is a charm serving as Milter.
flowchart TD
Provider -- port --> Requirer
Behavior
The requirer and the provider must adhere to a certain set of criteria to be considered compatible with the interface.
Provider
- Is expected to provide the Milter port so that the requirer can connect.
Requirer
- Is not expected to publish anything
- Is expected to combine the provided milter port with the provider's
ingress-addressto connect
Relation Data
Provider
Provider publishes the Milter configuration. It should be placed in the unit databag.
Example