Merge branch 'v1.5' into v1.5

Author: greenie-msft

daprdocs/content/en/reference/components-reference/supported-pubsub/setup-rabbitmq.md

@@ -43,6 +43,12 @@ spec:
     value: "100"
   - name: backOffMaxRetries
     value: "16"
+  - name: enableDeadLetter # Optional enable dead Letter or not
+    value: "true"
+  - name: maxLen # Optional max message count in a queue
+    value: "3000"
+  - name: maxLenBytes # Optional maximum length in bytes of a queue.
+    value: "10485760"
 ```
 {{% alert title="Warning" color="warning" %}}
 The above example uses secrets as plain strings. It is recommended to use a secret store for the secrets as described [here]({{< ref component-secrets.md >}}).
@@ -69,6 +75,9 @@ The above example uses secrets as plain strings. It is recommended to use a secr
 | backOffRandomizationFactor | N        | Randomization factor, between 1 and 0, including 0 but not 1. Randomized interval = RetryInterval * (1 ± backOffRandomizationFactor). Defaults to `"0.5"`.                 | `"0.5"`                       |
 | backOffMultiplier          | N        | Backoff multiplier for the policy. Increments the interval by multiplying it with the multiplier. Defaults to `"1.5"`         | `"1.5"`      |
 | backOffMaxElapsedTime      | N        | After MaxElapsedTime the ExponentialBackOff returns Stop. There are two valid formats, one is the fraction with a unit suffix format, and the other is the pure digital format that will be processed as milliseconds. Valid time units are "ns", "us" (or "µs"), "ms", "s", "m", "h". Defaults to `"15m"` | `"15m"` |
+| enableDeadLetter      | N        | Enable forwarding Messages that cannot be handled to a dead-letter topic. Defaults to `"false"` | `"true"`, `"false"` |
+| maxLen      | N        | The maximum number of messages of a queue and its dead letter queue (if dead letter enabled). If both `maxLen` and `maxLenBytes` are set then both will apply; whichever limit is hit first will be enforced.  Defaults to no limit. | `"1000"` |
+| maxLenBytes      | N        | Maximum length in bytes of a queue and its dead letter queue (if dead letter enabled). If both `maxLen` and `maxLenBytes` are set then both will apply; whichever limit is hit first will be enforced.  Defaults to no limit. | `"1048576"` |
 
 
 ### Backoff policy introduction