This has been tested on OpenShift 4.8, including Azure Red Hat OpenShift v4.8.
First, install the AMQ Broker operator and OpenShift Pipelines operator. You can do this through the OpenShift UI as an admin, or by executing the following command using the oc cli as a cluster-admin.
oc apply -k manifests/operators
For convenience, you can use the cert.sh script to generate certificates and add them to a Secret. It assumes you are logged in ahead of time with the oc cli so that it can get the apps router url from your cluster.
From a Mac or Linux terminal, run:
./cert.sh mypassword
Where mypassword is any password you would like to use for the keystore. This will use the Java keytool to generate a keystore and trustore, then encode them in a secret that will get added to the manifests/broker directory. This secret is already added to the .gitignore file, so it will not be pushed to your git repo.
Once the operator is installed and you have generated your certificates/secret, you can create a Broker instance and the Topic.
oc apply -k manifests/broker
Once the broker is up and running, you can build and deploy the "amq-mqtt" consumer application.
oc apply -k manifests/consumer
This will kick off a small Tekton pipeline to build and deploy the app.