podman build -t mytomcat:slim .

podman tag  localhost/mytomcat:slim default-route-openshift-image-registry.apps.cluster-d60b.sandbox509.opentlc.com/myproject/mytomcat:slim

podman push default-route-openshift-image-registry.apps.cluster-d60b.sandbox509.opentlc.com/myproject/mytomcat:slim

[root@clientvm  ~]# oc new-app mytomcat:slim --name=demo

--> Found image ec32b2c ( days old) in image stream "myproject/mytomcat" under tag "slim" for "mytomcat:slim"

    * This image will be deployed in deployment config "demo"

    * Port /tcp will be load balanced by service "demo"

      * Other containers can access this service through the hostname "demo"

    * WARNING: Image "myproject/mytomcat:slim" runs as the 'root' user which may not be permitted by your cluster administrator

--> Creating resources ...

    imagestreamtag.image.openshift.io "demo:slim" created

    deploymentconfig.apps.openshift.io "demo" created

    service "demo" created

--> Success

    Application is not exposed. You can expose services to the outside world by executing one or more of the commands below:

     'oc expose svc/demo'

    Run 'oc status' to view your app.

[root@clientvm  ~]# oc expose svc/demo

route.route.openshift.io/demo exposed

[root@clientvm  ~]# oc get route

NAME       HOST/PORT                                                     PATH   SERVICES   PORT       TERMINATION   WILDCARD

demo       demo-myproject.apps.cluster-.sandbox452.opentlc.com              demo       -tcp                 None

mytomcat   mytomcat-myproject.apps.cluster-.sandbox452.opentlc.com          mytomcat   -tcp                 None

oc get deployments -n openshift-machine-api cluster-autoscaler-operator

echo '

---

apiVersion: "autoscaling.openshift.io/v1"

kind: "ClusterAutoscaler"

metadata:

  name: "default"

spec:

  podPriorityThreshold: -

  resourceLimits:

    maxNodesTotal:

  scaleDown:

    enabled: true

    delayAfterAdd: 10s

    delayAfterDelete: 10s

    delayAfterFailure: 10s' | oc create -f - -n openshift-machine-api

oc get pod -n openshift-machine-api

for ms in cluster--sd4tq-worker-ap-southeast-1c

do

echo "

---

apiVersion: \"autoscaling.openshift.io/v1beta1\"

kind: "MachineAutoscaler"

metadata:

  name: autoscale-${ms}

  namespace: \"openshift-machine-api\"

spec:

  minReplicas:

  maxReplicas:

  scaleTargetRef:

    apiVersion: machine.openshift.io/v1beta1

    kind: MachineSet

    name: ${ms}" >$HOME/autoscaler-${ms}.yaml

done

oc new-project work-queue

echo '

---

apiVersion: batch/v1

kind: Job

metadata:

  generateName: work-queue-

spec:

  template:

    spec:

      containers:

      - name: work

        image: busybox

        command: ["sleep",  ""]

        resources:

          requests:

            memory: 500Mi

            cpu: 500m

      restartPolicy: Never

      nodeSelector:

        failure-domain.beta.kubernetes.io/zone: ap-southeast-1c

  backoffLimit:

  completions:

  parallelism: ' | oc create -f - -n work-queue

watch oc get machines -n openshift-machine-api

watch oc get nodes