docs: update cluster exposing and update strategy docs

[AndrewChubatiuk]

fixes #1506
fixes #1699

[cubic-dev-ai]

1 issue found across 4 files

Prompt for AI agents (unresolved issues)

Check if these issues are valid — if so, understand the root cause of each and fix them. If appropriate, use sub-agents to investigate and fix each issue separately.


<file name="docs/resources/vmcluster.md">

<violation number="1" location="docs/resources/vmcluster.md:408">
P2: Comment says `Recreate` is "for minimum downtime" — this is backwards. `Recreate` kills all pods before creating new ones, causing full downtime. `RollingUpdate` (the default) provides zero-downtime updates by incrementally replacing pods.</violation>
</file>

<sub>Reply with feedback, questions, or to request a fix.

Fix all with cubic | Re-trigger cubic</sub>

[cubic-dev-ai]

P2: Comment says Recreate is "for minimum downtime" — this is backwards. Recreate kills all pods before creating new ones, causing full downtime. RollingUpdate (the default) provides zero-downtime updates by incrementally replacing pods.

Prompt for AI agents

Check if this issue is valid — if so, understand the root cause and fix it. At docs/resources/vmcluster.md, line 408:

<comment>Comment says `Recreate` is "for minimum downtime" — this is backwards. `Recreate` kills all pods before creating new ones, causing full downtime. `RollingUpdate` (the default) provides zero-downtime updates by incrementally replacing pods.</comment>

<file context>
@@ -264,6 +332,85 @@ spec:
+spec:
+  vminsert:
+    replicaCount: 3
+    updateStrategy: RollingUpdate   # default; set to Recreate for minimum downtime
+    rollingUpdate:
+      maxUnavailable: 1
</file context>

Suggested change

	updateStrategy: RollingUpdate # default; set to Recreate for minimum downtime
	updateStrategy: RollingUpdate # default; set to Recreate for faster restart at the cost of downtime

[vrutkovs]

Suggested change

	updateStrategy: RollingUpdate # default; set to Recreate for minimum downtime
	updateStrategy: RollingUpdate # default; set to Recreate for short update time at the cost of a short downtime

[AndrewChubatiuk]

minimum downtime strategy is used in vmcluster docs, probably wording can be updated and converted to the link to respective cluster section

[vrutkovs]

Oh, okay, lets change it all together then