Rabbitmq in Kubernetes: Command not found - docker

Question

Trying to start up rabbitmq in K8s while attaching a configmap gives me the following error:
/usr/local/bin/docker-entrypoint.sh: line 367: rabbitmq-plugins: command not found
/usr/local/bin/docker-entrypoint.sh: line 405: exec: rabbitmq-server: not found
Exactly the same setup is working fine with docker-compose, so I am a bit lost. Using rabbitmq:3.8.3
Here is a snippet from my deployment:
"template": {
"metadata": {
"creationTimestamp": null,
"labels": {
"app": "rabbitmq"
}
},
"spec": {
"volumes": [
{
"name": "rabbitmq-configuration",
"configMap": {
"name": "rabbitmq-configuration",
"defaultMode": 420
}
}
],
"containers": [
{
"name": "rabbitmq",
"image": "rabbitmq:3.8.3",
"ports": [
{
"containerPort": 5672,
"protocol": "TCP"
}
],
"env": [
{
"name": "RABBITMQ_DEFAULT_USER",
"value": "guest"
},
{
"name": "RABBITMQ_DEFAULT_PASS",
"value": "guest"
},
{
"name": "RABBITMQ_ENABLED_PLUGINS_FILE",
"value": "/opt/enabled_plugins"
}
],
"resources": {},
"volumeMounts": [
{
"name": "rabbitmq-configuration",
"mountPath": "/opt/"
}
],
"terminationMessagePath": "/dev/termination-log",
"terminationMessagePolicy": "File",
"imagePullPolicy": "IfNotPresent"
}
],
"restartPolicy": "Always",
"terminationGracePeriodSeconds": 30,
"dnsPolicy": "ClusterFirst",
"securityContext": {},
"schedulerName": "default-scheduler"
}
},
And here is the configuration:
{
"kind": "ConfigMap",
"apiVersion": "v1",
"metadata": {
"name": "rabbitmq-configuration",
"namespace": "e360",
"selfLink": "/api/v1/namespaces/default/configmaps/rabbitmq-configuration",
"uid": "28071976-98f6-11ea-86b2-0244a03303e1",
"resourceVersion": "1034540",
"creationTimestamp": "2020-05-18T10:55:58Z"
},
"data": {
"enabled_plugins": "[rabbitmq_management].\n"
}
}

Answer 1

That's because you're monting a volume in /opt, which is the rabbitmq home path.
So, the entrypoint script cannot find any of the rabbitmq binaries.
You can see the rabbitmq Dockerfile here