AMQ Pod Draining in OpenShift Demo

How to

Prerequisites

OpenShift 4.7 up and running

Deployment

Login to OpenShift

oc login https://host:port
oc project amq-ha

Create namespace and install operator

oc apply -k infra/cluster

Create AMQ Cluster

oc apply -k infra/amq

Wait while 3 AMQ Brokers are up and running and deploy applications (1 producers and 1 consumer1)

oc apply -k infra/application

Demo

1. Check AMQ Console to check that 1000 messages are in each broker
2. Scale down AQM Cluster to 2 brokers through OpenShift UI
3. Check pods in namespace (One terminated and then drawniing start/complete)
4. Check that 2 brokers have same 3000 messages
5. Start consumer through OpenShift UI
6. Show consumers logs

oc get pods --no-headers --output='json' -l app.kubernetes.io/part-of=amq-consumer -o=jsonpath='{.items[0].metadata.name}' | xargs oc logs -f

Check that all 3000 messages are received