<p>I've setup a K8S-cluster in GKE and installed RabbitMQ (from the marketplace) and Istio (via Helm). I can access rabbitMQ from pods until I enable the envoy proxy to be injected into these pods, but after that the traffic will not reach rabbitMQ, and I can't figure out how to enable traffic to the rabbitmq service.</p>

<p>There is a service <em>rabbitmq-rabbitmq-svc</em> (in the <em>rabbitmq</em> namespace) that is of type LoadBalancer.
I've tried a simple busybox when I don't have envoy running and then I have no trouble telneting to rabbitmq (port 5672), but as soon as I try with automatic envoy injection envoy prevents the traffic.
I tried unsuccessfully to add a DestinationRule. (I've added a rule but it makes no difference)</p>

<pre><code>apiVersion: networking.istio.io/v1alpha3
kind: DestinationRule
metadata:
  name: rabbitmq-rabbitmq-svc
spec:
  host: rabbitmq.rabbitmq.svc.cluster.local
  trafficPolicy:
    loadBalancer:
      simple: LEAST_CONN
</code></pre>

<p>It seems like it should be a simple solution, but I can't figure it out... :/</p>

<p><strong>UPDATE</strong>
Turns out it was a simple error in the hostname, ended up using this and it works:</p>

<pre><code>apiVersion: networking.istio.io/v1alpha3
kind: DestinationRule
metadata:
  name: rabbitmq-rabbitmq-svc
spec:
  host: rabbitmq-rabbitmq-svc.rabbitmq.svc.cluster.local
</code></pre>

Martin
<p>Turns out it was a simple error in the hostname, the correct one was <code>rabbitmq-rabbitmq-svc.rabbitmq.svc.cluster.local</code></p>
