VMware RabbitMQ for Kubernetes Cluster Operator Plugin for kubectl

Installing the RabbitMQ Cluster Operator plugin for kubectl makes installing the RabbitMQ Cluster Kubernetes Operator into any Kubernetes instance easier because each plugin command automates many interactions with the kubernetes API and the RabbitMQ Cluster Operator. The plugin also includes several commands for common workflows with RabbitMQ clusters.

To find out more about using the RabbitMQ Cluster operator and how to deploy Custom Resource objects it manages, refer to the Using RabbitMQ Cluster Operator information.

Before Installing the RabbitMQ Cluster Operator Plugin for kubectl

Ensure you have the following tools installed:

  • Krew is the plugin manager for kubectl command-line tool.
  • kubectl

After installing krew, verify the installation:

kubectl krew

Install the Cluster Operator Plugin for kubectl

When krew is setup, you can now install the RabbitMQ Cluster Operator plugin.

kubectl krew install rabbitmq

To verify the plugin is installed, get the list of available commands:

kubectl rabbitmq help
#   Install RabbitMQ Cluster Operator (optionally provide image to use a relocated image or a specific version)
#     kubectl rabbitmq install-cluster-operator [IMAGE]
# [...]

Using the Cluster Operator Plugin for kubectl

Create a RabbitMQ Cluster

kubectl rabbitmq create INSTANCE

The previous command creates a RabbitMQ cluster with some basic configuration where only the cluster name is configured.

Get a RabbitMQ Cluster

kubectl rabbitmq get INSTANCE

Display all of the kubernetes resources associated with the named RabbitMQ cluster including pods, configmaps, statefulsets, services, and secrets.

NAME                     READY   STATUS    RESTARTS   AGE
pod/hello-rmq-server-0   0/1     Pending   0          5h31m

NAME                               DATA   AGE
configmap/hello-rmq-plugins-conf   1      5h31m
configmap/hello-rmq-server-conf    2      5h31m

NAME                                READY   AGE
statefulset.apps/hello-rmq-server   0/1     5h31m

NAME                      TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)              AGE
service/hello-rmq         ClusterIP   none        5672/TCP,15672/TCP   5h31m
service/hello-rmq-nodes   ClusterIP   None           none        4369/TCP,25672/TCP   5h31m

NAME                             TYPE     DATA   AGE
secret/hello-rmq-default-user    Opaque   3      5h31m
secret/hello-rmq-erlang-cookie   Opaque   1      5h31m

List all RabbitMQ Clusters

kubectl rabbitmq list

The previous commands lists all RabbitMQ clusters deployed by the RabbitMQ cluster operator on the target kubernetes instance.

Delete a RabbitMQ Cluster

kubectl rabbitmq delete INSTANCE

The previous command deletes a RabbitMQ cluster, or multiple RabbitMQ clusters. When deleting multiple RabbitMQ clusters, provide a space separated list.

kubectl rabbitmq delete rmq1 rmq2 rmq3
kubectl rabbitmq secrets INSTANCE

The previous command lists the default user secrets for the named RabbitMQ cluster.

Open the RabbitMQ Management UI

kubectl rabbitmq manage INSTANCE

The previous command opens the RabbitMQ Management UI in a browser.

Set the Log Level on all RabbitMQ Nodes for Debugging

kubectl rabbitmq debug INSTANCE

The previous command sets the log level on all nodes to debug. For a detailed breakdown on RabbitMQ logging, refer to the Logging information.

Tail Logs

kubectl rabbitmq tail INSTANCE

After running the previous command, you will see all log output for the remote RabbitMQ nodes on your console. Note, to run the previous command, you must have the tail plugin installed.

Install the tail plugin by running the following command:

kubectl krew install tail

Observe Nodes on the RabbitMQ Cluster

kubectl rabbitmq observe INSTANCE INDEX

The previous command opens the rabbitmq-diagnostics observer interface for a given node.

Turn on All Feature Flags

kubectl rabbitmq enable-all-feature-flags INSTANCE 

The previous command uses rabbitmqctl to activate or turn on all possible feature flags.

Pause Reconciliation on the RabbitMQ Cluster

kubectl rabbitmq pause-reconciliation INSTANCE 

The previous command adds the label "rabbitmq.com/pauseReconciliation=true" to the target RabbitMQ cluster. The label prevents the Operator from watching and updating the instance.

Resume Reconciliation on the RabbitMQ Cluster

kubectl rabbitmq resume-reconciliation INSTANCE 

The previous command instructs the Operator to resume reconciliation for a RabbitMQ cluster.

List Instances with Paused Reconciliation

kubectl rabbitmq [list pause reconciliation instances](list-pause-reconciliation-instances) INSTANCE

The previous command lists all instances that are not being reconciled by the Operator.

Perf Test

kubectl rabbitmq perf-test INSTANCE --rate 100

The previous command runs perf-test against an instance. You can pass as many perf test parameters as you like here.

To monitor PerfTest, add the following ServiceMonitor:

  apiVersion: monitoring.coreos.com/v1
  kind: ServiceMonitor
    name: kubectl-perf-test
    - interval: 15s
      targetPort: 8080
        app: perf-test

Please submit feedback and feature requests for the RabbitMQ Cluster Operator on GitHub.

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