I'm trying to deploy a rabbitmq pod in my kubernetes. So I use the rabbitmq hosted by Google : https://github.com/GoogleCloudPlatform/rabbitmq-docker/blob/master/3/README.md#connecting-to-a-running-rabbitmq-container-kubernetes
In the documentation, it is said : Starting a RabbitMQ instance
Replace your-erlang-cookie with a valid cookie value. For more information, see RABBITMQ_ERLANG_COOKIE in Environment Variable.
Copy the following content to pod.yaml file, and run kubectl create -f pod.yaml.
apiVersion: v1
kind: Pod
metadata:
name: some-rabbitmq
labels:
name: some-rabbitmq
spec:
containers:
- image: launcher.gcr.io/google/rabbitmq3
name: rabbitmq
env:
- name: "RABBITMQ_ERLANG_COOKIE"
value: "unique-erlang-cookie"How could I generate the cookie erlang ? I find nothing after days of searching on internet. I have a rabbitmq installed in my windows, I never generated a cookie erlang.
Please how could I do ? Thanks
It's any unique value; the only constraint is that every connected instance of RabbitMQ (that is, every Pod in your StatefulSet) has the same cookie value.
A good way to specify this is with a Secret:
env:
- name: RABBITMQ_ERLANG_COOKIE
valueFrom:
secretKeyRef:
name: rabbitmq
key: erlangCookieThis requires you to create the Secret. Just to bring this up, you can run a one-off imperative command to create a random Secret:
kubectl create secret generic rabbitmq \
--from-literal=erlangCookie=$(dd if=/dev/urandom bs=30 count=1 | base64)For actual production use you'd need to store that credential somewhere safe and be able to inject (or recreate) it at deployment time. Managing that is a little beyond the scope of this question.