Cloud Native Programming with Golang

Creating the RabbitMQ broker

Let's start by creating the RabbitMQ broker. Since RabbitMQ is not a stateless component, we will use a special controller offered by Kubernetes—the StatefulSet Controller. This works similar to a Deployment controller, but will create Pods with a persistent identity.

To create a new StatefulSet, create a new file named rabbitmq-statefulset.yaml:

apiVersion: apps/v1beta1 
kind: StatefulSet 
metadata: 
  name: rmq 
spec: 
  serviceName: amqp-broker 
  replicas: 1 
  template: 
    metadata: 
      labels: 
        myevents/app: amqp-broker 
    spec: 
      containers: 
      - name: rmq 
        image: rabbitmq:3-management 
        ports: 
        - containerPort: 5672 
          name: amqp 
        - containerPort: 15672 
          name: http 

This definition is missing one important thing, though, that is, persistence. ...