istio

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apiVersion: release-notes/v2
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kind: feature
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area: traffic-management
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issue:
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  - 29384
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releaseNotes:
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  - |
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    **Added** experimental support for controlling service endpoint discoverability with Kubernetes Multi-Cluster
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    Services (MCS). This feature is off by default, but can be enabled by setting the
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    `ENABLE_MCS_SERVICE_DISCOVERY` flag in Istio. When enabled, Istio will make service endpoints
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    only discoverable from within the same cluster by default. To make the service endpoints within a cluster
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    discoverable throughout the mesh, a `ServiceExport` CR must be created within the same cluster as the service
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    endpoints. this process can be automated by enabling the Istio flag `ENABLE_MCS_AUTOEXPORT`. With this enabled,
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    Istio will automatically create `ServiceExport` in all clusters for each service.
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