f:

Author: dspo

api/v1alpha1/httproutepolicy_types.go

@@ -0,0 +1,125 @@
+/*
+Copyright 2024.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package v1alpha1
+
+import (
+	"encoding/json"
+	"errors"
+
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	gatewayv1alpha2 "sigs.k8s.io/gateway-api/apis/v1alpha2"
+)
+
+// HTTPRoutePolicySpec defines the desired state of HTTPRoutePolicy.
+type HTTPRoutePolicySpec struct {
+	// TargetRef identifies an API object (enum: HTTPRoute, Ingress) to apply HTTPRoutePolicy to.
+	//
+	// target references.
+	// +listType=map
+	// +listMapKey=group
+	// +listMapKey=kind
+	// +listMapKey=name
+	// +kubebuilder:validation:MinItems=1
+	// +kubebuilder:validation:MaxItems=16
+	TargetRefs []gatewayv1alpha2.LocalPolicyTargetReferenceWithSectionName `json:"targetRefs"`
+
+	Policy HTTPRoutePolicySpecPolicy `json:"policy"`
+}
+
+// +kubebuilder:object:root=true
+
+// HTTPRoutePolicy is the Schema for the httproutepolicies API.
+type HTTPRoutePolicy struct {
+	metav1.TypeMeta   `json:",inline"`
+	metav1.ObjectMeta `json:"metadata,omitempty"`
+
+	Spec HTTPRoutePolicySpec `json:"spec,omitempty"`
+}
+
+// +kubebuilder:object:root=true
+
+// HTTPRoutePolicyList contains a list of HTTPRoutePolicy.
+type HTTPRoutePolicyList struct {
+	metav1.TypeMeta `json:",inline"`
+	metav1.ListMeta `json:"metadata,omitempty"`
+	Items           []HTTPRoutePolicy `json:"items"`
+}
+
+type HTTPRoutePolicySpecPolicy struct {
+	Priority *int64 `json:"priority,omitempty" yaml:"priority,omitempty"`
+	Vars     Vars   `json:"vars,omitempty" yaml:"vars,omitempty"`
+}
+
+// Vars represents the route match expressions of APISIX.
+type Vars [][]StringOrSlice
+
+// UnmarshalJSON implements json.Unmarshaler interface.
+// lua-cjson doesn't distinguish empty array and table,
+// and by default empty array will be encoded as '{}'.
+// We have to maintain the compatibility.
+func (vars *Vars) UnmarshalJSON(p []byte) error {
+	if p[0] == '{' {
+		if len(p) != 2 {
+			return errors.New("unexpected non-empty object")
+		}
+		return nil
+	}
+	var data [][]StringOrSlice
+	if err := json.Unmarshal(p, &data); err != nil {
+		return err
+	}
+	*vars = data
+	return nil
+}
+
+// StringOrSlice represents a string or a string slice.
+// TODO Do not use interface{} to avoid the reflection overheads.
+type StringOrSlice struct {
+	StrVal   string   `json:"-"`
+	SliceVal []string `json:"-"`
+}
+
+func (s *StringOrSlice) MarshalJSON() ([]byte, error) {
+	var (
+		p   []byte
+		err error
+	)
+	if s.SliceVal != nil {
+		p, err = json.Marshal(s.SliceVal)
+	} else {
+		p, err = json.Marshal(s.StrVal)
+	}
+	return p, err
+}
+
+func (s *StringOrSlice) UnmarshalJSON(p []byte) error {
+	var err error
+
+	if len(p) == 0 {
+		return errors.New("empty object")
+	}
+	if p[0] == '[' {
+		err = json.Unmarshal(p, &s.SliceVal)
+	} else {
+		err = json.Unmarshal(p, &s.StrVal)
+	}
+	return err
+}
+
+func init() {
+	SchemeBuilder.Register(&HTTPRoutePolicy{}, &HTTPRoutePolicyList{})
+}