The documentation you are viewing is for Dapr v0.11 which is an older version of Dapr. For up-to-date documentation, see the latest version.
Overview
Dapr integrates with pub/sub message buses to provide apps with the ability to create event-driven, loosely coupled architectures where producers send events to consumers via topics. It supports the configuration of multiple, named, pub/sub components per application. Each pub/sub component has a name and this name is used when publishing a message topic
Pub/Sub message buses are extensible and can be found in the components-contrib repo.
A pub/sub in Dapr is described using a Component
file:
apiVersion: dapr.io/v1alpha1
kind: Component
metadata:
name: pubsub
namespace: default
spec:
type: pubsub.<NAME>
version: v1
metadata:
- name: <KEY>
value: <VALUE>
- name: <KEY>
value: <VALUE>
...
The type of pub/sub is determined by the type
field, and things like connection strings and other metadata are put in the .metadata
section.
Even though you can put plain text secrets in there, it is recommended you use a secret store using a secretKeyRef
Visit this guide for instructions on configuring pub/sub components.