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fix: single-node cluster example in Istiod HA docs #1915

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istio-testing merged 1 commit into from
May 7, 2026
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fix: single-node cluster example in Istiod HA docs #1915

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9 changes: 5 additions & 4 deletions docs/general/istiod-ha.adoc
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Original file line number Diff line number Diff line change
Expand Up @@ -184,9 +184,10 @@ metadata:
name: default
spec:
namespace: istio-system
global:
defaultPodDisruptionBudget:
enabled: false # <-- disable default Pod Disruption Budget
values:
global:
defaultPodDisruptionBudget:
enabled: false # <-- disable default Pod Disruption Budget
----

`spec.global.defaultPodDisruptionBudget.enabled: false` disables the default Pod Disruption Budget for Istiod. In single-node clusters, a PDB can block operations such as node drains or pod evictions, as it prevents the number of available Istiod replicas from falling below the PDB's minimum desired count. Disabling it ensures smooth operations in this specific topology.
`spec.values.global.defaultPodDisruptionBudget.enabled: false` disables the default Pod Disruption Budget for Istiod. In single-node clusters, a PDB can block operations such as node drains or pod evictions, as it prevents the number of available Istiod replicas from falling below the PDB's minimum desired count. Disabling it ensures smooth operations in this specific topology.
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