Upgrade OCP to 4.9

upgrade-4.9.sh

#!/bin/bash

# Set up a the patch for upgrade towards 4.9 safely
# Check https://access.redhat.com/articles/6329921 for more information
oc -n openshift-config patch cm admin-acks --patch '{"data":{"ack-4.8-kube-1.22-api-removals-in-4.9":"true"}}' --type=merge

# Change the channel to the Fast 4.9 (Stable 4.9 not available at this moment
oc patch clusterversion version --type="merge" -p '{"spec":{"channel":"fast-4.9"}}'

# Upgrade towards the latest 
oc adm upgrade --to-latest

# Upgrade Check
oc adm upgrade

# Upgrade Check Cluster Operators
watch -n1 oc get co