Why am I getting a SQSError: 404 when trying to connect using Boto to an ElasticMQ service that is behind Ambassador? - python-3.x

Question

I have an elasticmq docker container which is deployed as a service using Kubernetes. Furthermore, this service is exposed to external users by way of Ambassador.
Here is the yaml file for the service.
---
kind: Service
apiVersion: v1
metadata:
name: elasticmq
annotations:
getambassador.io/config: |
---
apiVersion: ambassador/v1
kind: Mapping
name: elasticmq
prefix: /
host: elasticmq.localhost.com
service: elasticmq:9324
spec:
selector:
app: elasticmq
ports:
- port: 9324
protocol: TCP
---
kind: Deployment
apiVersion: apps/v1
metadata:
name: elasticmq
labels:
app: elasticmq
spec:
replicas: 1
selector:
matchLabels:
app: elasticmq
template:
metadata:
labels:
app: elasticmq
spec:
containers:
- name: elasticmq
image: elasticmq
imagePullPolicy: IfNotPresent
ports:
- containerPort: 9324
livenessProbe:
exec:
command:
- /bin/bash
- -c
- nc -zv localhost 9324 -w 1
initialDelaySeconds: 60
periodSeconds: 5
volumeMounts:
- name: elastimq-conf-volume
mountPath: /elasticmq/elasticmq.conf
volumes:
- name: elastimq-conf-volume
hostPath:
path: /path/elasticmq.conf
Now I can check that the elasticmq container is healthy and Ambassador worked by doing a curl:
$ curl elasticmq.localhost.com?Action=ListQueues&Version=2012-11-05
[1] 10355
<ListQueuesResponse xmlns="http://queue.amazonaws.com/doc/2012-11-05/">
<ListQueuesResult>
</ListQueuesResult>
<ResponseMetadata>
<RequestId>00000000-0000-0000-0000-000000000000</RequestId>
</ResponseMetadata>
</ListQueuesResponse>[1]+ Done
On the other hand, when I try to do the same thing using Boto3, I get a SQSError: 404 not found.
This is my Python script:
import boto.sqs.connection
conn = boto.sqs.connection
c = conn.SQSConnection(proxy_port=80, proxy='elasticmq.localhost.com', is_secure=False, aws_access_key_id='x', aws_secret_access_key='x'
c.get_all_queues('')
I thought it had to do with the outside host specified in elasticmq.conf, so I changed that to this:
include classpath("application.conf")
// What is the outside visible address of this ElasticMQ node (used by rest-sqs)
node-address {
protocol = http
host = elasticmq.localhost.com
port = 80
context-path = ""
}
rest-sqs {
enabled = true
bind-port = 9324
bind-hostname = "0.0.0.0"
// Possible values: relaxed, strict
sqs-limits = relaxed
}
I thought changing the elasticmq conf would work, but it doesn't. How can I get this to work?