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--- wiki:ai:nvidia_gpu_operator_installation_and_upgrade [2026/07/20 12:42] – ssuresh
+++ wiki:ai:nvidia_gpu_operator_installation_and_upgrade [2026/07/20 16:53] (current) – ssuresh
@@ Line 198: / Line 198: @@
-=== Phase 5 — CUDA VectorAdd GPU test ===
+===== Phase 5 — CUDA VectorAdd GPU test =====
 <code ->
@@ Line 224: / Line 224: @@
 {{:wiki:ai:screenshot_2026-07-14_at_7.05.33 pm.png|}}
-==== Phase 6 — Upgrade the Operator====
+===== Phase 6 — Upgrade the Operator =====
 **Concept: **
@@ Line 505: / Line 505: @@
 {{:wiki:ai:screenshot_2026-07-15_at_10.57.56 pm.png|}}
+===== PART III — ROLLBACK PLAN =====
+**Before any upgrade — capture your safety net**
+<code ->
+helm list -n gpu-operator                                             # note operator + version
+helm get values <RELEASE_NAME> -n gpu-operator > working-values.yaml  # save WORKING config (incl. k3s toolkit.env)
+helm history <RELEASE_NAME> -n gpu-operator                           # note current revision
+</code>
+{{:wiki:ai:screenshot_2026-07-15_at_11.18.24 pm.png|}}
+**Roll back the Operator release**
+<code ->
+helm history <RELEASE_NAME> -n gpu-operator          # see revisions
+helm rollback <RELEASE_NAME> -n gpu-operator          # previous revision
+# or a specific revision:
+helm rollback <RELEASE_NAME> 2 -n gpu-operator
+helm rollback <RELEASE_NAME> 1 -n gpu-operator
+</code>
+{{:wiki:ai:screenshot_2026-07-15_at_11.19.40 pm.png|}}
 **Simulation cleanup**
@@ Line 516: / Line 542: @@
 </code>
-=== PART III — ROLLBACK PLAN ===
+{{:wiki:ai:screenshot_2026-07-15_at_10.59.54 pm.png|}}
+**Cleanup (avoid a surprise bill!)**
+  * Pause between sessions: EC2 → Stop (compute stops billing; small EBS cost remains; public IP changes on restart unless you use an Elastic IP).
+  * Done for good: EC2 → Terminate (deletes instance + disk).
+  * Release any Elastic IP if you allocated one (billed even while unused).

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