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Adapt HPA values and scaling base #819

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May 21, 2024
Merged

Adapt HPA values and scaling base #819

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05a8d81
Adapt HPA values and scaling base
barchw May 14, 2024
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Merge branch 'main' into hpatuning
barchw May 15, 2024
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barchw May 16, 2024
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barchw May 17, 2024
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Merge branch 'main' into hpatuning
triffer May 21, 2024
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4 changes: 3 additions & 1 deletion docs/release-notes/1.7.0.md
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Expand Up @@ -2,4 +2,6 @@

- Allow for opting out of the **ENABLE_EXTERNAL_NAME_ALIAS** Istio pilot environment variable in the Istio custom resource. This allows for retaining behavior that was present in Istio prior to version 1.21. See issue [#787](https://github.com/kyma-project/istio/issues/787 ).
- Update the Istio version to 1.21.2 [#802](https://github.com/kyma-project/istio/pull/802). Read [Istio 1.21.2 Release Announcement](https://istio.io/latest/news/releases/1.21.x/announcing-1.21.2/) and [Change Notes](https://istio.io/latest/news/releases/1.21.x/announcing-1.21/change-notes/) for more details.
- Add Request Authentication UI for Kyma dashboard [#816](https://github.com/kyma-project/istio/pull/816)
- Change scaling of Istio ingress gateway to be based on CPU utilization only. This ensures that the scaling is more responsive to traffic changes, since ingress-gateway memory utilization is not a good indicator of the traffic load.
- Adjust the default number of ingress gateway replicas on smaller clusters to 1.
- Add Request Authentication UI for Kyma dashboard [#816](https://github.com/kyma-project/istio/pull/816)
2 changes: 1 addition & 1 deletion docs/user/00-50-resource-configuration.md
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Expand Up @@ -44,7 +44,7 @@ Istio Controller installs Istio with a configuration that depends in the cluster
| Component | Min replicas | Max replicas |
|-----------------|--------------|--------------|
| Pilot | 1 | 1 |
| Ingress Gateway | 1 | 3 |
| Ingress Gateway | 1 | 1 |

### CNI Autoscaling

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4 changes: 2 additions & 2 deletions internal/istiooperator/istio-operator-light.yaml
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Expand Up @@ -61,7 +61,7 @@ spec:
topologyKey: kubernetes.io/hostname
weight: 100
hpaSpec:
maxReplicas: 5
maxReplicas: 1
minReplicas: 1
resources:
limits:
Expand Down Expand Up @@ -308,7 +308,7 @@ spec:
injectionURL: ""
pilot:
autoscaleEnabled: true
autoscaleMax: 5
autoscaleMax: 1
autoscaleMin: 1
configMap: true
cpu:
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6 changes: 0 additions & 6 deletions internal/istiooperator/istio-operator.yaml
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Expand Up @@ -69,12 +69,6 @@ spec:
type: Utilization
averageUtilization: 80
type: Resource
- resource:
name: memory
target:
type: Utilization
averageUtilization: 80
type: Resource
minReplicas: 3
resources:
limits:
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