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Update gateway api provider to v1alpha2

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Co-authored-by: Tom Moulard <tom.moulard@traefik.io>
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docs/content/routing/providers/kubernetes-gateway.md
View file

@ -1,7 +1,6 @@
# Traefik & Kubernetes
The Kubernetes Gateway API, The Experimental Way.
{: .subtitle }
The Kubernetes Gateway API, The Experimental Way. {: .subtitle }
## Configuration Examples
@ -28,183 +27,180 @@ The Kubernetes Gateway API, The Experimental Way.
### Custom Resource Definition (CRD)
* You can find an exhaustive list, of the custom resources and their attributes in
[the reference page](../../reference/dynamic-configuration/kubernetes-gateway.md) or in the Kubernetes Sigs `Gateway API` [repository](https://github.com/kubernetes-sigs/gateway-api).
* Validate that [the prerequisites](../../providers/kubernetes-gateway.md#configuration-requirements) are fulfilled before using the Traefik Kubernetes Gateway Provider.
[the reference page](../../reference/dynamic-configuration/kubernetes-gateway.md) or in the Kubernetes
Sigs `Gateway API` [repository](https://github.com/kubernetes-sigs/gateway-api).
* Validate that [the prerequisites](../../providers/kubernetes-gateway.md#configuration-requirements) are fulfilled
before using the Traefik Kubernetes Gateway Provider.
You can find an excerpt of the supported Kubernetes Gateway API resources in the table below:
| Kind | Purpose | Concept Behind |
|------------------------------------|---------------------------------------------------------------------------|--------------------------------------------------------------------------------------|
| [GatewayClass](#kind-gatewayclass) | Defines a set of Gateways that share a common configuration and behaviour | [GatewayClass](https://gateway-api.sigs.k8s.io/v1alpha1/api-types/gatewayclass) |
| [Gateway](#kind-gateway) | Describes how traffic can be translated to Services within the cluster | [Gateway](https://gateway-api.sigs.k8s.io/v1alpha1/api-types/gateway) |
| [HTTPRoute](#kind-httproute) | HTTP rules for mapping requests from a Gateway to Kubernetes Services | [Route](https://gateway-api.sigs.k8s.io/v1alpha1/api-types/httproute) |
| [GatewayClass](#kind-gatewayclass) | Defines a set of Gateways that share a common configuration and behaviour | [GatewayClass](https://gateway-api.sigs.k8s.io/v1alpha2/api-types/gatewayclass) |
| [Gateway](#kind-gateway) | Describes how traffic can be translated to Services within the cluster | [Gateway](https://gateway-api.sigs.k8s.io/v1alpha2/api-types/gateway) |
| [HTTPRoute](#kind-httproute) | HTTP rules for mapping requests from a Gateway to Kubernetes Services | [Route](https://gateway-api.sigs.k8s.io/v1alpha2/api-types/httproute) |
| [TCPRoute](#kind-tcproute) | Allows mapping TCP requests from a Gateway to Kubernetes Services | [Route](https://gateway-api.sigs.k8s.io/concepts/api-overview/#tcproute-and-udproute)|
| [TLSRoute](#kind-tlsroute) | Allows mapping TLS requests from a Gateway to Kubernetes Services | [Route](https://gateway-api.sigs.k8s.io/concepts/api-overview/#tcproute-and-udproute)|
### Kind: `GatewayClass`
`GatewayClass` is cluster-scoped resource defined by the infrastructure provider. This resource represents a class of Gateways that can be instantiated.
More details on the GatewayClass [official documentation](https://gateway-api.sigs.k8s.io/v1alpha1/api-types/gatewayclass/).
`GatewayClass` is cluster-scoped resource defined by the infrastructure provider. This resource represents a class of
Gateways that can be instantiated. More details on the
GatewayClass [official documentation](https://gateway-api.sigs.k8s.io/v1alpha1/api-types/gatewayclass/).
The `GatewayClass` should be declared by the infrastructure provider, otherwise please register the `GatewayClass`
[definition](../../reference/dynamic-configuration/kubernetes-gateway.md#definitions) in the Kubernetes cluster before
[definition](../../reference/dynamic-configuration/kubernetes-gateway.md#definitions) in the Kubernetes cluster before
creating `GatewayClass` objects.
!!! info "Declaring GatewayClass"
```yaml
apiVersion: gateway.networking.k8s.io/v1alpha2
kind: GatewayClass
apiVersion: networking.x-k8s.io/v1alpha1
metadata:
name: my-gateway-class
spec:
# Controller is a domain/path string that indicates
# the controller that is managing Gateways of this class.
controller: traefik.io/gateway-controller
controllerName: traefik.io/gateway-controller
```
### Kind: `Gateway`
A `Gateway` is 1:1 with the life cycle of the configuration of infrastructure. When a user creates a Gateway,
some load balancing infrastructure is provisioned or configured by the GatewayClass controller.
More details on the Gateway [official documentation](https://gateway-api.sigs.k8s.io/v1alpha1/api-types/gateway/).
A `Gateway` is 1:1 with the life cycle of the configuration of infrastructure. When a user creates a Gateway, some load
balancing infrastructure is provisioned or configured by the GatewayClass controller. More details on the
Gateway [official documentation](https://gateway-api.sigs.k8s.io/v1alpha2/api-types/gateway/).
Register the `Gateway` [definition](../../reference/dynamic-configuration/kubernetes-gateway.md#definitions) in the
Kubernetes cluster before creating `Gateway` objects.
Depending on the Listener Protocol, different modes and Route types are supported.
| Listener Protocol | TLS Mode | Route Type Supported |
|-------------------|----------------|------------------------------|
| TCP | Not applicable | [TCPRoute](#kind-tcproute) |
| TLS | Passthrough | [TLSRoute](#kind-tlsroute) |
| TLS | Terminate | [TCPRoute](#kind-tcproute) |
| HTTP | Not applicable | [HTTPRoute](#kind-httproute) |
| HTTPS | Terminate | [HTTPRoute](#kind-httproute) |
| Listener Protocol | TLS Mode | Route Type Supported |
|-------------------|----------------|--------------------------------------------------------|
| TCP | Not applicable | [TCPRoute](#kind-tcproute) |
| TLS | Passthrough | [TLSRoute](#kind-tlsroute), [TCPRoute](#kind-tcproute) |
| TLS | Terminate | [TLSRoute](#kind-tlsroute), [TCPRoute](#kind-tcproute) |
| HTTP | Not applicable | [HTTPRoute](#kind-httproute) |
| HTTPS | Terminate | [HTTPRoute](#kind-httproute) |
!!! info "Declaring Gateway"
```yaml tab="HTTP Listener"
apiVersion: gateway.networking.k8s.io/v1alpha2
kind: Gateway
apiVersion: networking.x-k8s.io/v1alpha1
metadata:
name: my-http-gateway
namespace: default
spec:
gatewayClassName: my-gateway-class # [1]
listeners: # [2]
- protocol: HTTP # [3]
port: 80 # [4]
routes: # [8]
kind: HTTPRoute # [9]
- name: http # [3]
protocol: HTTP # [4]
port: 80 # [5]
allowedRoutes: # [9]
kinds:
- kind: HTTPRoute # [10]
namespaces:
from: Selector # [10]
selector: # [11]
from: Selector # [11]
selector: # [12]
matchLabels:
app: foo
selector: # [12]
matchLabels:
app: foo
```
```yaml tab="HTTPS Listener"
apiVersion: gateway.networking.k8s.io/v1alpha2
kind: Gateway
apiVersion: networking.x-k8s.io/v1alpha1
metadata:
name: my-https-gateway
namespace: default
spec:
gatewayClassName: my-gateway-class # [1]
listeners: # [2]
- protocol: HTTPS # [3]
port: 443 # [4]
tls: # [6]
certificateRef: # [7]
group: "core"
kind: "Secret"
name: "mysecret"
routes: # [8]
kind: HTTPRoute # [9]
- name: https # [3]
protocol: HTTPS # [4]
port: 443 # [5]
tls: # [7]
certificateRefs: # [8]
- kind: "Secret"
name: "mysecret"
allowedRoutes: # [9]
kinds:
- kind: HTTPSRoute # [10]
namespaces:
from: Selector # [10]
selector: # [11]
from: Selector # [11]
selector: # [12]
matchLabels:
app: foo
selector: # [12]
matchLabels:
app: foo
```
```yaml tab="TCP Listener"
apiVersion: gateway.networking.k8s.io/v1alpha2
kind: Gateway
apiVersion: networking.x-k8s.io/v1alpha1
metadata:
name: my-tcp-gateway
namespace: default
spec:
gatewayClassName: my-gateway-class # [1]
listeners: # [2]
- protocol: TCP # [3]
port: 8000 # [4]
routes: # [8]
kind: TCPRoute # [9]
- name: tcp # [3]
protocol: TCP # [4]
port: 8000 # [5]
allowedRoutes: # [9]
kinds:
- kind: TCPRoute # [10]
namespaces:
from: Selector # [10]
selector: # [11]
from: Selector # [11]
selector: # [12]
matchLabels:
app: footcp
selector: # [12]
matchLabels:
app: footcp
```
```yaml tab="TLS Listener"
apiVersion: gateway.networking.k8s.io/v1alpha2
kind: Gateway
apiVersion: networking.x-k8s.io/v1alpha1
metadata:
name: my-tls-gateway
namespace: default
spec:
gatewayClassName: my-gateway-class # [1]
listeners: # [2]
- protocol: TLS # [3]
port: 443 # [4]
hostname: foo.com # [5]
tls: # [6]
certificateRef: # [7]
group: "core"
kind: "Secret"
name: "mysecret"
routes: # [8]
kind: TLSRoute # [9]
- name: tls # [3]
protocol: TLS # [4]
port: 443 # [5]
hostname: foo.com # [6]
tls: # [7]
certificateRefs: # [8]
- kind: "Secret"
name: "mysecret"
allowedRoutes: # [9]
kinds:
- kind: TLSRoute # [10]
namespaces:
from: Selector # [10]
selector: # [11]
from: Selector # [11]
selector: # [12]
matchLabels:
app: footcp
selector: # [12]
matchLabels:
app: footcp
```
| Ref | Attribute | Description |
|------|--------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------|
| [1] | `gatewayClassName` | GatewayClassName used for this Gateway. This is the name of a GatewayClass resource. |
| [2] | `listeners` | Logical endpoints that are bound on this Gateway's addresses. At least one Listener MUST be specified. |
| [3] | `protocol` | The network protocol this listener expects to receive (only HTTP and HTTPS are implemented). |
| [4] | `port` | The network port. |
| [5] | `hostname` | Hostname specifies the virtual hostname to match for protocol types that define this concept. When unspecified, “”, or *, all hostnames are matched. |
| [6] | `tls` | TLS configuration for the Listener. This field is required if the Protocol field is "HTTPS" or "TLS" and ignored otherwise. |
| [7] | `certificateRef` | The reference to Kubernetes object that contains a TLS certificate and private key. |
| [8] | `routes` | A schema for associating routes with the Listener using selectors. |
| [9] | `kind` | The kind of the referent. |
| [10] | `from` | From indicates in which namespaces the Routes will be selected for this Gateway. Possible values are `All`, `Same` and `Selector` (Defaults to `Same`). |
| [11] | `selector` | Selector must be specified when From is set to `Selector`. In that case, only Routes in Namespaces matching this Selector will be selected by this Gateway. |
| [12] | `selector` | Selector specifies a set of route labels used for selecting routes to associate with the Gateway. An empty Selector matches all routes. |
| [3] | `name` | Name of the Listener. |
| [4] | `protocol` | The network protocol this listener expects to receive (only HTTP and HTTPS are implemented). |
| [5] | `port` | The network port. |
| [6] | `hostname` | Hostname specifies the virtual hostname to match for protocol types that define this concept. When unspecified, “”, or *, all hostnames are matched. |
| [7] | `tls` | TLS configuration for the Listener. This field is required if the Protocol field is "HTTPS" or "TLS" and ignored otherwise. |
| [8] | `certificateRefs` | The references to Kubernetes objects that contains TLS certificates and private keys (only one reference to a Kubernetes Secret is supported). |
| [9] | `allowedRoutes` | Defines the types of routes that MAY be attached to a Listener and the trusted namespaces where those Route resources MAY be present. |
| [10] | `kind` | The kind of the Route. |
| [11] | `from` | From indicates in which namespaces the Routes will be selected for this Gateway. Possible values are `All`, `Same` and `Selector` (Defaults to `Same`). |
| [12] | `selector` | Selector must be specified when From is set to `Selector`. In that case, only Routes in Namespaces matching this Selector will be selected by this Gateway. |
### Kind: `HTTPRoute`
`HTTPRoute` defines HTTP rules for mapping requests from a `Gateway` to Kubernetes Services.
`HTTPRoute` defines HTTP rules for mapping requests from a `Gateway` to Kubernetes Services.
Register the `HTTPRoute` [definition](../../reference/dynamic-configuration/kubernetes-gateway.md#definitions) in the
Kubernetes cluster before creating `HTTPRoute` objects.
@ -212,61 +208,60 @@ Kubernetes cluster before creating `HTTPRoute` objects.
!!! info "Declaring HTTPRoute"
```yaml
apiVersion: gateway.networking.k8s.io/v1alpha2
kind: HTTPRoute
apiVersion: networking.x-k8s.io/v1alpha1
metadata:
name: http-app-1
name: http-app
namespace: default
labels: # [1]
app: foo
spec:
hostnames: # [2]
- "whoami"
rules: # [3]
- matches: # [4]
- path: # [5]
type: Exact # [6]
value: /bar # [7]
- headers: # [8]
parentRefs: # [1]
- name: my-tcp-gateway # [2]
namespace: default # [3]
sectionName: tcp # [4]
hostnames: # [5]
- whoami
rules: # [6]
- matches: # [7]
- path: # [8]
type: Exact # [9]
values: # [10]
foo: bar
forwardTo: # [11]
- serviceName: whoami # [12]
weight: 1 # [13]
port: 80 # [14]
- backendRef: # [15]
group: traefik.containo.us # [16]
kind: TraefikService # [17]
name: api@internal # [18]
port: 80
weight: 1
value: /bar # [10]
- headers: # [11]
name: foo # [12]
value: bar # [13]
- backendRefs: # [14]
- name: whoamitcp # [15]
weight: 1 # [16]
port: 8080 # [17]
- name: api@internal
group: traefik.containo.us # [18]
kind: TraefikService # [19]
```
| Ref | Attribute | Description |
|------|---------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| [1] | `labels` | Labels to match with the `Gateway` labelselector. |
| [2] | `hostnames` | A set of hostname that should match against the HTTP Host header to select a HTTPRoute to process the request. |
| [3] | `rules` | A list of HTTP matchers, filters and actions. |
| [4] | `matches` | Conditions used for matching the rule against incoming HTTP requests. Each match is independent, i.e. this rule will be matched if **any** one of the matches is satisfied. |
| [5] | `path` | An HTTP request path matcher. If this field is not specified, a default prefix match on the "/" path is provided. |
| [6] | `type` | Type of match against the path Value (supported types: `Exact`, `Prefix`). |
| [7] | `value` | The value of the HTTP path to match against. |
| [8] | `headers` | Conditions to select a HTTP route by matching HTTP request headers. |
| [9] | `type` | Type of match for the HTTP request header match against the `values` (supported types: `Exact`). |
| [10] | `values` | A map of HTTP Headers to be matched. It MUST contain at least one entry. |
| [11] | `forwardTo` | The upstream target(s) where the request should be sent. |
| [12] | `serviceName` | The name of the referent service. |
| [13] | `weight` | The proportion of traffic forwarded to a targetRef, computed as weight/(sum of all weights in targetRefs). |
| [14] | `port` | The port of the referent service. |
| [15] | `backendRef` | The BackendRef is a reference to a backend (API object within a known namespace) to forward matched requests to. If both BackendRef and ServiceName are specified, ServiceName will be given precedence. Only `TraefikService` is supported. |
| [16] | `group` | Group is the group of the referent. Only `traefik.containo.us` value is supported. |
| [17] | `kind` | Kind is kind of the referent. Only `TraefikService` value is supported. |
| [18] | `name` | Name is the name of the referent. |
| Ref | Attribute | Description |
|------|---------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| [1] | `parentRefs` | References the resources (usually Gateways) that a Route wants to be attached to. |
| [2] | `name` | Name of the referent. |
| [3] | `namespace` | Namespace of the referent. When unspecified (or empty string), this refers to the local namespace of the Route. |
| [4] | `sectionName` | Name of a section within the target resource (the Listener name). |
| [5] | `hostnames` | A set of hostname that should match against the HTTP Host header to select a HTTPRoute to process the request. |
| [6] | `rules` | A list of HTTP matchers, filters and actions. |
| [7] | `matches` | Conditions used for matching the rule against incoming HTTP requests. Each match is independent, i.e. this rule will be matched if **any** one of the matches is satisfied. |
| [8] | `path` | An HTTP request path matcher. If this field is not specified, a default prefix match on the "/" path is provided. |
| [9] | `type` | Type of match against the path Value (supported types: `Exact`, `Prefix`). |
| [10] | `value` | The value of the HTTP path to match against. |
| [11] | `headers` | Conditions to select a HTTP route by matching HTTP request headers. |
| [12] | `type` | Type of match for the HTTP request header match against the `values` (supported types: `Exact`). |
| [13] | `value` | A map of HTTP Headers to be matched. It MUST contain at least one entry. |
| [14] | `backendRefs` | Defines the backend(s) where matching requests should be sent. |
| [15] | `name` | The name of the referent service. |
| [16] | `weight` | The proportion of traffic forwarded to a targetRef, computed as weight/(sum of all weights in targetRefs). |
| [17] | `port` | The port of the referent service. |
| [18] | `group` | Group is the group of the referent. Only `traefik.containo.us` and `gateway.networking.k8s.io` values are supported. |
| [19] | `kind` | Kind is kind of the referent. Only `TraefikService` and `Service` values are supported. |
### Kind: `TCPRoute`
`TCPRoute` allows mapping TCP requests from a `Gateway` to Kubernetes Services
`TCPRoute` allows mapping TCP requests from a `Gateway` to Kubernetes Services.
Register the `TCPRoute` [definition](../../reference/dynamic-configuration/kubernetes-gateway.md#definitions) in the
Kubernetes cluster before creating `TCPRoute` objects.
@ -274,76 +269,83 @@ Kubernetes cluster before creating `TCPRoute` objects.
!!! info "Declaring TCPRoute"
```yaml
apiVersion: gateway.networking.k8s.io/v1alpha2
kind: TCPRoute
apiVersion: networking.x-k8s.io/v1alpha1
metadata:
name: tcp-app-1
name: tcp-app
namespace: default
labels: # [1]
app: tcp-app-1
spec:
rules: # [2]
- forwardTo: # [3]
- serviceName: whoamitcp # [4]
weight: 1 # [5]
port: 8080 # [6]
- backendRef: # [7]
group: traefik.containo.us # [8]
kind: TraefikService # [9]
name: api@internal # [10]
parentRefs: # [1]
- name: my-tcp-gateway # [2]
namespace: default # [3]
sectionName: tcp # [4]
rules: # [5]
- backendRefs: # [6]
- name: whoamitcp # [7]
weight: 1 # [8]
port: 8080 # [9]
- name: api@internal
group: traefik.containo.us # [10]
kind: TraefikService # [11]
```
| Ref | Attribute | Description |
|------|---------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| [1] | `labels` | Labels to match with the `Gateway` labelselector. |
| [2] | `rules` | Rules are a list of TCP matchers and actions. |
| [3] | `forwardTo` | The upstream target(s) where the request should be sent. |
| [4] | `serviceName` | The name of the referent service. |
| [5] | `weight` | The proportion of traffic forwarded to a targetRef, computed as weight/(sum of all weights in targetRefs). |
| [6] | `port` | The port of the referent service. |
| [7] | `backendRef` | The BackendRef is a reference to a backend (API object within a known namespace) to forward matched requests to. If both BackendRef and ServiceName are specified, ServiceName will be given precedence. Only `TraefikService` is supported. |
| [8] | `group` | Group is the group of the referent. Only `traefik.containo.us` value is supported. |
| [9] | `kind` | Kind is kind of the referent. Only `TraefikService` value is supported. |
| [10] | `name` | Name is the name of the referent. |
| Ref | Attribute | Description |
|------|---------------|----------------------------------------------------------------------------------------------------------------------|
| [1] | `parentRefs` | References the resources (usually Gateways) that a Route wants to be attached to. |
| [2] | `name` | Name of the referent. |
| [3] | `namespace` | Namespace of the referent. When unspecified (or empty string), this refers to the local namespace of the Route. |
| [4] | `sectionName` | Name of a section within the target resource (the Listener name). |
| [5] | `rules` | Rules are a list of TCP matchers and actions. |
| [6] | `backendRefs` | Defines the backend(s) where matching requests should be sent. |
| [7] | `name` | The name of the referent service. |
| [8] | `weight` | The proportion of traffic forwarded to a targetRef, computed as weight/(sum of all weights in targetRefs). |
| [9] | `port` | The port of the referent service. |
| [10] | `group` | Group is the group of the referent. Only `traefik.containo.us` and `gateway.networking.k8s.io` values are supported. |
| [11] | `kind` | Kind is kind of the referent. Only `TraefikService` and `Service` values are supported. |
### Kind: `TLSRoute`
`TLSRoute` allows mapping TLS requests from a `Gateway` to Kubernetes Services
`TLSRoute` allows mapping TLS requests from a `Gateway` to Kubernetes Services.
Register the `TLSRoute` [definition](../../reference/dynamic-configuration/kubernetes-gateway.md#definitions) in the
Kubernetes cluster before creating `TLSRoute` objects.
!!! info "Declaring TCPRoute"
!!! info "Declaring TLSRoute"
```yaml
apiVersion: gateway.networking.k8s.io/v1alpha2
kind: TLSRoute
apiVersion: networking.x-k8s.io/v1alpha1
metadata:
name: tls-app-1
name: tls-app
namespace: default
labels: # [1]
app: tls-app-1
spec:
rules: # [2]
- forwardTo: # [3]
- serviceName: whoamitcp # [4]
weight: 1 # [5]
port: 8080 # [6]
- backendRef: # [7]
group: traefik.containo.us # [8]
kind: TraefikService # [9]
name: api@internal # [10]
parentRefs: # [1]
- name: my-tls-gateway # [2]
namespace: default # [3]
sectionName: tcp # [4]
hostnames: # [5]
- whoami
rules: # [6]
- backendRefs: # [7]
- name: whoamitcp # [8]
weight: 1 # [9]
port: 8080 # [10]
- name: api@internal
group: traefik.containo.us # [11]
kind: TraefikService # [12]
```
| Ref | Attribute | Description |
|------|---------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| [1] | `labels` | Labels to match with the `Gateway` labelselector. |
| [2] | `rules` | Rules are a list of TCP matchers and actions. |
| [3] | `forwardTo` | The upstream target(s) where the request should be sent. |
| [4] | `serviceName` | The name of the referent service. |
| [5] | `weight` | The proportion of traffic forwarded to a targetRef, computed as weight/(sum of all weights in targetRefs). |
| [6] | `port` | The port of the referent service. |
| [7] | `backendRef` | The BackendRef is a reference to a backend (API object within a known namespace) to forward matched requests to. If both BackendRef and ServiceName are specified, ServiceName will be given precedence. Only `TraefikService` is supported. |
| [8] | `group` | Group is the group of the referent. Only `traefik.containo.us` value is supported. |
| [9] | `kind` | Kind is kind of the referent. Only `TraefikService` value is supported. |
| [10] | `name` | Name is the name of the referent. |
| Ref | Attribute | Description |
|------|---------------|----------------------------------------------------------------------------------------------------------------------|
| [1] | `parentRefs` | References the resources (usually Gateways) that a Route wants to be attached to. |
| [2] | `name` | Name of the referent. |
| [3] | `namespace` | Namespace of the referent. When unspecified (or empty string), this refers to the local namespace of the Route. |
| [4] | `sectionName` | Name of a section within the target resource (the Listener name). |
| [5] | `hostnames` | Defines a set of SNI names that should match against the SNI attribute of TLS ClientHello message in TLS handshake. |
| [6] | `rules` | Rules are a list of TCP matchers and actions. |
| [7] | `backendRefs` | Defines the backend(s) where matching requests should be sent. |
| [8] | `name` | The name of the referent service. |
| [9] | `weight` | The proportion of traffic forwarded to a targetRef, computed as weight/(sum of all weights in targetRefs). |
| [10] | `port` | The port of the referent service. |
| [11] | `group` | Group is the group of the referent. Only `traefik.containo.us` and `gateway.networking.k8s.io` values are supported. |
| [12] | `kind` | Kind is kind of the referent. Only `TraefikService` and `Service` values are supported. |