[Verse 1]
Your cluster's running version three point eight
But four point zero's knocking at the gate
Edit your Kafka Custom Resource file
Bump the version number, test and smile
Rolling update starts its careful dance
Each broker restarts when it gets the chance
Zero downtime while the pods transform
Keeping all your data safe and warm
[Chorus]
Upgrade, rebalance, distribute the load
Version N to N plus one we go
Add a broker, watch partitions flow
Cruise Control knows which way to grow
Upgrade, rebalance, stability's key
Consumer groups running happily
Cluster evolution, smooth as can be
[Verse 2]
New broker joins the Kafka federation
Scale your replicas through configuration
Strimzi operator sees the change
Schedules pods across the cluster range
Fresh broker's hungry for some work to do
Partitions scattered like morning dew
Time to trigger rebalancing power
Cruise Control will orchestrate this hour
[Chorus]
Upgrade, rebalance, distribute the load
Version N to N plus one we go
Add a broker, watch partitions flow
Cruise Control knows which way to grow
Upgrade, rebalance, stability's key
Consumer groups running happily
Cluster evolution, smooth as can be
[Bridge]
Create a rebalance annotation
Watch the partition migration
Even spread across machines
Check consumer group routines
Lag monitors stay in the green
Smoothest upgrade you've ever seen
[Verse 3]
Verify the cluster's in perfect health
Partitions spread like distributed wealth
Each broker carries its equal share
Consumer groups process without a care
Offset commits flowing just like before
Throughput metrics better than before
Version four point zero running strong
Your upgrade journey's complete, sing along
[Chorus]
Upgrade, rebalance, distribute the load
Version N to N plus one we go
Add a broker, watch partitions flow
Cruise Control knows which way to grow
Upgrade, rebalance, stability's key
Consumer groups running happily
Cluster evolution, smooth as can be
[Outro]
From old to new with zero pain
Kafka clusters upgraded again
Strimzi magic, Kubernetes might
Your streaming platform shines so bright