mirror of https://github.com/status-im/consul.git
website(consul-api-gateway): add ReferencePolicy to overview docs (#12861)
* website(consul-api-gateway): add ReferencePolicy to overview docs * website(consul-api-gateway): bump required Consul Helm chart version For allowing Consul API Gateway controller to read ReferencePolicy resources and UX improvement re-using connectInject.consulNamespaces config for Consul API Gateway config. * added referencepolicy documentation to route section * Update website/content/docs/api-gateway/consul-api-gateway-install.mdx Co-authored-by: Mike Morris <mikemorris@users.noreply.github.com> * Update website/content/docs/api-gateway/consul-api-gateway-install.mdx Co-authored-by: Mike Morris <mikemorris@users.noreply.github.com> * Update website/content/docs/api-gateway/consul-api-gateway-install.mdx Co-authored-by: Mike Morris <mikemorris@users.noreply.github.com> * Update website/content/docs/api-gateway/consul-api-gateway-install.mdx Co-authored-by: Mike Morris <mikemorris@users.noreply.github.com> * Update website/content/docs/api-gateway/consul-api-gateway-install.mdx Co-authored-by: Mike Morris <mikemorris@users.noreply.github.com> * Update consul-api-gateway-install.mdx * Update consul-api-gateway-install.mdx * Update website/content/docs/api-gateway/consul-api-gateway-install.mdx Co-authored-by: Nathan Coleman <nathandanielcoleman@gmail.com> * Update website/content/docs/api-gateway/consul-api-gateway-install.mdx Co-authored-by: Jeff Boruszak <104028618+boruszak@users.noreply.github.com> * Update website/content/docs/api-gateway/consul-api-gateway-install.mdx * Update website/content/docs/api-gateway/consul-api-gateway-install.mdx * Update website/content/docs/api-gateway/index.mdx Co-authored-by: Jeff Boruszak <104028618+boruszak@users.noreply.github.com> * Update website/content/docs/api-gateway/index.mdx * Update website/content/docs/api-gateway/index.mdx Co-authored-by: Jeff Boruszak <104028618+boruszak@users.noreply.github.com> Co-authored-by: Sarah Alsmiller <sarah.alsmiller@hashicorp.com> Co-authored-by: sarahalsmiller <100602640+sarahalsmiller@users.noreply.github.com> Co-authored-by: Nathan Coleman <nathandanielcoleman@gmail.com> Co-authored-by: Jeff Boruszak <104028618+boruszak@users.noreply.github.com>
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@ -304,6 +304,48 @@ spec:
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</CodeBlockConfig>
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To create a route for a `backendRef` in a different namespace, you must also
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create a [ReferencePolicy](https://gateway-api.sigs.k8s.io/v1alpha2/references/spec/#gateway.networking.k8s.io/v1alpha2.ReferencePolicy).
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The following example creates a route named `example-route` in namespace `gateway-namespace`. This route has a `backendRef` in namespace `service-namespace`. Traffic is allowed because the `ReferencePolicy`, named `reference-policy` in namespace `service-namespace`, allows traffic from `HTTPRoutes` in `gateway-namespace` to `Services` in `service-namespace`.
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<CodeBlockConfig filename="route_with_referencepolicy.yaml">
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```yaml
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apiVersion: gateway.networking.k8s.io/v1alpha2
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kind: HTTPRoute
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metadata:
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name: example-route
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namespace: gateway-namespace
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spec:
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parentRefs:
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- name: example-gateway
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rules:
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- backendRefs:
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- kind: Service
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name: echo
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namespace: service-namespace
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port: 8080
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---
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apiVersion: gateway.networking.k8s.io/v1alpha2
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kind: ReferencePolicy
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metadata:
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name: reference-policy
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namespace: service-namespace
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spec:
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from:
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- group: gateway.networking.k8s.io
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kind: HTTPRoute
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namespace: gateway-namespace
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to:
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- group: ""
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kind: Service
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name: echo
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```
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</CodeBlockConfig>
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### MeshService
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The `MeshService` configuration holds a reference to an externally-managed Consul service mesh service and can be used as a `backendRef` for a [`Route`](#route).
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@ -7,7 +7,7 @@ description: >-
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# Consul API Gateway Overview
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This topic provides an overview of the Consul API Gateway.
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This topic provides an overview of the Consul API Gateway.
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## What is Consul API Gateway?
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@ -24,7 +24,7 @@ Consul API Gateway can be deployed on Kubernetes-based runtime environments and
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API Gateway routes traffic to services connected to the same service mesh. Those services can be running on the same Kubernetes cluster as the API Gateway, a different Kubernetes cluster, or another runtime, as long as they are connected to the same service mesh deployment and reachable over the network.
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Consul API Gateway implements, and is configured through, the Kubernetes [Gateway API Specification](https://gateway-api.sigs.k8s.io/). This specification defines a set of custom resource definitions (CRD) that can create logical gateways and routes based on the path or protocol of a client request.
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Consul API Gateway implements and is configured through the Kubernetes [Gateway API Specification](https://gateway-api.sigs.k8s.io/). This specification defines a set of custom resource definitions (CRD) that can create logical gateways which route traffic based on a client request's path or protocol.
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### Supported Kubernetes Gateway Specification Features
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@ -38,8 +38,8 @@ are used, see the [documentation in our GitHub repo](https://github.com/hashicor
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| [`Gateway`](https://gateway-api.sigs.k8s.io/v1alpha2/references/spec/#gateway.networking.k8s.io/v1alpha2.Gateway) | <ul><li>Supported protocols: `HTTP`, `HTTPS`, `TCP`</li><li>Header-based hostname matching (no SNI support)</li><li>Supported filters: header addition, removal, and setting</li><li>TLS modes supported: `terminate`</li><li>Certificate types supported: `core/v1/Secret`</li><li>Extended options: TLS version and cipher constraints</li></ul> |
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| [`HTTPRoute`](https://gateway-api.sigs.k8s.io/v1alpha2/references/spec/#gateway.networking.k8s.io/v1alpha2.HTTPRoute) | <ul><li>Weight-based load balancing</li><li>Supported rules: path, header, query, and method-based matching</li><li>Supported filters: header addition, removal, and setting</li><li>Supported backend types: <ol><li>`core/v1/Service` (must map to a registered Consul service)</li><li>`api-gateway.consul.hashicorp.com/v1alpha1/MeshService`</li></ol></li></ul> |
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| [`TCPRoute`](https://gateway-api.sigs.k8s.io/v1alpha2/references/spec/#gateway.networking.k8s.io/v1alpha2.TCPRoute) | <ul><li>Supported backend types: <ol><li>`core/v1/Service` (must map to a registered Consul service)</li><li>`api-gateway.consul.hashicorp.com/v1alpha1/MeshService`</li></ol></li></ul> |
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| [`ReferencePolicy`](https://gateway-api.sigs.k8s.io/v1alpha2/references/spec/#gateway.networking.k8s.io/v1alpha2.ReferencePolicy) | <ul><li>Required to allow any reference from an `HTTPRoute` or `TCPRoute` to a Kubernetes `core/v1/Service` in a different namespace.</li><li>A route with an unpermitted BackendRef caused by the lack of a ReferencePolicy sets a `ResolvedRefs` status to `False` with the reason `RefNotPermitted`. The gateway listener rejects routes with an unpermitted BackendRef.</li><li>WARNING: If a route BackendRef becomes unpermitted, the entire route is removed from the gateway listener. <ul><li>A BackendRef can become unpermitted when you delete a Reference Policy or add a new unpermitted BackendRef to an existing route.</li></ul></li></ul> |
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## Additional Resources
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You can learn more about using Consul API Gateway by completing the [Consul API Gateway tutorial](https://learn.hashicorp.com/tutorials/consul/kubernetes-api-gateway).
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@ -20,7 +20,7 @@ Your datacenter must meet the following requirements prior to configuring the Co
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- Kubernetes 1.21+
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- `kubectl` 1.21+
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- Consul 1.11.2+
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- HashiCorp Consul Helm chart 0.41.1+
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- HashiCorp Consul Helm chart 0.43.0+
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- Consul Service Mesh must be deployed on the Kubernetes cluster that API Gateway is deployed on.
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### TCP Port Requirements
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