Finalise exercise 4.

data/hackathon/README.org

@@ -426,10 +426,46 @@ oc --namespace demotestwtf17 get VirtualMachineInstance fedora
 ** Exercise four - What about balancing vm workloads?
 
 #+begin_src tmux
-# Create required namespace
+# Create required namespace for vm
 oc create namespace itsjustyaml
 
+# Create the suggested namespace for descheduler operator
+oc create namespace openshift-kube-descheduler-operator
 
+# Create the subscription for the kube deschedular operator
+cat << EOF | oc apply --namespace openshift-kube-descheduler-operator --filename -
+apiVersion: operators.coreos.com/v1alpha1
+kind: Subscription
+metadata:
+  name: cluster-kube-descheduler-operator
+  namespace: openshift-kube-descheduler-operator
+spec:
+  channel: stable
+  installPlanApproval: Automatic
+  name: cluster-kube-descheduler-operator
+  source: redhat-operators
+  sourceNamespace: openshift-marketplace
+EOF
+
+# Create the instance of descheduler
+cat << EOF | oc apply --namespace openshift-kube-descheduler-operator --filename -
+apiVersion: operator.openshift.io/v1
+kind: KubeDescheduler
+metadata:
+  name: cluster
+  namespace: openshift-kube-descheduler-operator
+spec:
+  deschedulingIntervalSeconds: 3600
+  logLevel: Normal
+  managementState: Managed
+  mode: Automatic
+  operatorLogLevel: Normal
+  profileCustomizations:
+    devLowNodeUtilizationThresholds: Medium
+  profiles:
+    - AffinityAndTaints
+    - DevPreviewLongLifecycle
+EOF
 #+end_src
 
 * Automated scenario cleanup

data/workshop/scenario3.mdx

@@ -23,7 +23,7 @@ The Acme Financial Services team have put you on the spot, can you pull off a vi
 
 ## 3.1 - Initiate the live migration
 
-For this task, your team must live migrate the virtual machine named `fedora` in namespace `demotestwtf17` from one node to another and record the name of the node the vm has migrated to.
+For this challenge, your team must live migrate the virtual machine named `fedora` in namespace `demotestwtf17` from one node to another and record the name of the node the vm has migrated to.
 
 No command line is required. However before you can complete the migration you will first need to investigate and correct why the virtual machine is not running. You had one too many coke zeros last night and can't remember how you got the machine into the state it's in 🤦.
 

data/workshop/scenario4.mdx

@@ -1,5 +1,5 @@
 ---
-title: What about rebalancing virtual machines?
+title: What about balancing vm workloads?
 exercise: 4
 date: '2024-04-14'
 tags: ['openshift','virtualisation','kubernetes','kubevirt']
@@ -16,12 +16,12 @@ One of the goals of the pilot is to ensure their virtual machine workloads will
 
 The Acme team are stuck on how they might implement this goal within their current sprint. They told you they found some documentation online on this thing called *"deschedular"* but have decided it would be easier to email Red Hat and ask for a walkthrough.
 
-Your account manager has voluntold you to setup an example environment for them and step through how to enable the feature. No worries right. After all, how hard can it be?
+Your local pre-sales team has offered to setup an example environment for Acme and step through how to enable the feature. No worries right. After all, how hard can it be?
 
 <Zoom>
 |![workshop](/workshops/static/images/hackathon/yaml-file.jpeg)                 | 
 |:-----------------------------------------------------------------------------:|
-| *"We've all said it"*                                                         |
+| *"We've all said it 😂"*                                                      |
 </Zoom>
 
 
@@ -29,10 +29,11 @@ Your account manager has voluntold you to setup an example environment for them
 
 Your challenge for this task is to enable the **Technology Preview** feature for Virtual Machine workload balancing in OpenShift at the cluster level.
 
-Once enabled at the cluster level you then need to deploy a **CentOS Stream 9** virtual machine called `centos` running in a new namespace called `itsjustyaml`.
+Once enabled at the cluster level you then need to deploy a **CentOS Stream 9** virtual machine called `centos` running in a new namespace called `itsjustyaml`. No command line is required.
 
 Documentation you may find helpful is:
 - https://docs.openshift.com/container-platform/4.15/virt/virtual_machines/advanced_vm_management/virt-enabling-descheduler-evictions.html
+- https://docs.openshift.com/container-platform/4.15/virt/virtual_machines/creating_vms_rh/virt-creating-vms-from-templates.html
 
 
 ## 4.2 - Check your work