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Add API for feature gate ServiceTopology

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This commit is contained in:
m1093782566
2018-12-14 15:52:02 +08:00
committed by Roc Chan
parent 581d3e26c9
commit cdaeabfb46
4 changed files with 39 additions and 0 deletions
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1
api/api-rules/violation_exceptions.list
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@@ -214,6 +214,7 @@ API rule violation: list_type_missing,k8s.io/api/core/v1,ServiceAccountList,Item
API rule violation: list_type_missing,k8s.io/api/core/v1,ServiceList,Items
API rule violation: list_type_missing,k8s.io/api/core/v1,ServiceSpec,ExternalIPs
API rule violation: list_type_missing,k8s.io/api/core/v1,ServiceSpec,LoadBalancerSourceRanges
API rule violation: list_type_missing,k8s.io/api/core/v1,ServiceSpec,TopologyKeys
API rule violation: list_type_missing,k8s.io/api/core/v1,TopologySelectorLabelRequirement,Values
API rule violation: list_type_missing,k8s.io/api/core/v1,TopologySelectorTerm,MatchLabelExpressions
API rule violation: list_type_missing,k8s.io/api/events/v1beta1,EventList,Items

15
pkg/apis/core/types.go
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@@ -3503,6 +3503,21 @@ type ServiceSpec struct {
// cluster (e.g. IPv6 in IPv4 only cluster) is an error condition and will fail during clusterIP assignment.
// +optional
IPFamily *IPFamily
// topologyKeys is a preference-order list of topology keys which
// implementations of services should use to preferentially sort endpoints
// when accessing this Service. Topology keys must be valid label keys and
// at most 16 keys may be specified.
// If any ready backends exist for index [0], they should always be chosen;
// only if no backends exist for index [0] should backends for index [1] be considered.
// If this field is specified and all entries have no backends that match
// the topology of the client, the service has no backends for that client
// and connections should fail.
// The special value "" may be used to mean "any node". This catch-all
// value, if used, only makes sense as the last value in the list.
// If this is not specified or empty, no topology constraints will be applied.
// +optional
TopologyKeys []string
}
// ServicePort represents the port on which the service is exposed

7
pkg/features/kube_features.go
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@@ -538,6 +538,12 @@ const (
//
// Enable all logic related to the PodDisruptionBudget API object in policy
PodDisruptionBudget featuregate.Feature = "PodDisruptionBudget"
// owner: @m1093782566
// alpha: v1.17
//
// Enables topology aware service routing
ServiceTopology featuregate.Feature = "ServiceTopology"
)
func init() {
@@ -623,6 +629,7 @@ var defaultKubernetesFeatureGates = map[featuregate.Feature]featuregate.FeatureS
StartupProbe: {Default: false, PreRelease: featuregate.Alpha},
AllowInsecureBackendProxy: {Default: true, PreRelease: featuregate.Beta},
PodDisruptionBudget: {Default: true, PreRelease: featuregate.Beta},
ServiceTopology: {Default: false, PreRelease: featuregate.Alpha},
// inherited features from generic apiserver, relisted here to get a conflict if it is changed
// unintentionally on either side:

16
staging/src/k8s.io/api/core/v1/types.go
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@@ -3940,6 +3940,7 @@ type ServiceSpec struct {
// of peer discovery.
// +optional
PublishNotReadyAddresses bool `json:"publishNotReadyAddresses,omitempty" protobuf:"varint,13,opt,name=publishNotReadyAddresses"`
// sessionAffinityConfig contains the configurations of session affinity.
// +optional
SessionAffinityConfig *SessionAffinityConfig `json:"sessionAffinityConfig,omitempty" protobuf:"bytes,14,opt,name=sessionAffinityConfig"`
@@ -3953,6 +3954,21 @@ type ServiceSpec struct {
// cluster (e.g. IPv6 in IPv4 only cluster) is an error condition and will fail during clusterIP assignment.
// +optional
IPFamily *IPFamily `json:"ipFamily,omitempty" protobuf:"bytes,15,opt,name=ipFamily,Configcasttype=IPFamily"`
// topologyKeys is a preference-order list of topology keys which
// implementations of services should use to preferentially sort endpoints
// when accessing this Service. Topology keys must be valid label keys and
// at most 16 keys may be specified.
// If any ready backends exist for index [0], they should always be chosen;
// only if no backends exist for index [0] should backends for index [1] be considered.
// If this field is specified and all entries have no backends that match
// the topology of the client, the service has no backends for that client
// and connections should fail.
// The special value "" may be used to mean "any node". This catch-all
// value, if used, only makes sense as the last value in the list.
// If this is not specified or empty, no topology constraints will be applied.
// +optional
TopologyKeys []string `json:"topologyKeys,omitempty" protobuf:"bytes,15,opt,name=topologyKeys"`
}
// ServicePort contains information on service's port.