add rabbitmq how-to (#269)

Author: yaron2

howto/setup-pub-sub-message-broker/README.md

@@ -45,3 +45,4 @@ kubectl apply -f pubsub.yaml
 [Setup Redis Streams](./setup-redis.md)
 [Setup NATS](./setup-nats.md)
 [Setup Azure Service bus](./setup-azure-servicebus.md)
+[Setup RabbitMQ](./setup-rabbitmq.md)

howto/setup-pub-sub-message-broker/setup-rabbitmq.md

@@ -0,0 +1,82 @@
+# Setup RabbitMQ 
+
+## Locally
+
+You can run a RabbitMQ server locally using Docker:
+
+```
+docker run -d --hostname my-rabbit --name some-rabbit rabbitmq:3
+```
+
+You can then interact with the server using the client port: `localhost:5672`.
+
+## Kubernetes
+
+The easiest way to install RabbitMQ on Kubernetes is by using the [Helm chart](https://github.com/helm/charts/tree/master/stable/rabbitmq):
+
+```
+helm install --name rabbitmq stable/rabbitmq
+```
+
+Look at the chart output and get the username and password.
+
+This will install RabbitMQ into the `default` namespace.
+To interact with RabbitMQ, find the service with: `kubectl get svc rabbitmq`.
+
+For example, if installing using the example above, the RabbitMQ server client address would be:
+
+`rabbitmq.default.svc.cluster.local:5672`
+
+## Create a Dapr component
+
+The next step is to create a Dapr component for RabbitMQ.
+
+Create the following YAML file named `rabbitmq.yaml`:
+
+```
+apiVersion: dapr.io/v1alpha1
+kind: Component
+metadata:
+  name: <name>
+spec:
+  type: pubsub.rabbitmq
+  metadata:
+  - name: host
+    value: <REPLACE-WITH-HOST> # Required. Example: "rabbitmq.default.svc.cluster.local:5672"
+  metadata:
+  - name: consumerID
+    value: <REPLACE-WITH-CONSUMER-ID> # Required. Any unique ID. Example: "myConsumerID"
+  metadata:
+  - name: durable
+    value: <REPLACE-WITH-DURABLE> # Optional. Default: "false"
+  metadata:
+  - name: deletedWhenUnused
+    value: <REPLACE-WITH-DELETE-WHEN-UNUSED> # Optional. Default: "false"
+  metadata:
+  - name: autoAck
+    value: <REPLACE-WITH-AUTO-ACK> # Optional. Default: "false"
+  metadata:
+  - name: deliveryMode
+    value: <REPLACE-WITH-DELIVERY-MODE> # Optional. Default: "0". Values between 0 - 2.
+  metadata:
+  - name: requeueInFailure
+    value: <REPLACE-WITH-REQUEUE-IN-FAILURE> # Optional. Default: "false".
+```
+
+The above example uses secrets as plain strings. It is recommended to use a secret store for the secrets as described [here](../../concepts/components/secrets.md)
+
+
+## Apply the configuration
+
+### In Kubernetes
+
+To apply the RabbitMQ pub/sub to Kubernetes, use the `kubectl` CLI:
+
+```
+kubectl apply -f rabbitmq.yaml
+```
+
+### Running locally
+
+The Dapr CLI will automatically create a directory named `components` in your current working directory with a Redis component.
+To use RabbitMQ, replace the redis_messagebus.yaml file with rabbitmq.yaml above.