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title : Install Multicluster
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description : Install an Istio mesh in ambient mode across multiple Kubernetes clusters.
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weight : 40
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- aliases :
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- - /docs/ambient/kubernetes/multicluster-install/
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- - /docs/ambient/kubernetes/multicluster/
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- - /docs/ambient/kubernetes/install/multicluster/
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- - /docs/ambient/install/multicluster/gateways/
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- - /docs/ambient/install/multicluster/shared/
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keywords : [kubernetes,multicluster]
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simple_list : true
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content_above : true
@@ -33,8 +27,8 @@ the current state and limitations of this feature:
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### Supported Configurations
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Currently, ambient multicluster only supports:
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- - ** Multi-network topologies ** with each cluster acting as a primary cluster.
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- - ** Universal waypoint deployments ** across all clusters with identical names
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+ Before proceeding with an ambient multicluster installation, it is critical to understand
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+ the current state and limitations of this feature.
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### Critical Limitations
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@@ -64,10 +58,13 @@ Currently, ambient multicluster only supports:
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- Remote cluster service scopes are not respected, which can lead to unexpected traffic behavior
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- Cross-cluster service discovery may not respect intended service boundaries
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+ ** If a service's waypoint is marked as global, that service will also be global**
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+ - This can lead to unintended cross-cluster traffic if not managed carefully
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+
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#### Gateway Limitations
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- ** Ambient east-west gateways only support double HBONE **
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- - Cannot expose ` istiod ` across networks using ambient east-west gateways
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+ ** Ambient east-west gateways currently only support meshed mTLS traffic **
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+ - Cannot currently expose ` istiod ` across networks using ambient east-west gateways. You can still use a classic e/w gateway for this.
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{{< tip >}}
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As ambient multicluster matures, many of these limitations will be addressed.
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