feat: add Go struct for gateway route

Signed-off-by: Lin Yang <reaver@flomesh.io>

pkg/gateway/route/types.go

@@ -0,0 +1,140 @@
+package route
+
+import gwv1beta1 "sigs.k8s.io/gateway-api/apis/v1beta1"
+
+type ConfigSpec struct {
+	Listeners             []Listener               `json:"Listeners"`
+	Certificate           *Certificate             `json:"Certificate"`
+	HTTPRouteRules        map[string]HTTPRouteRule `json:"HTTPRouteRules"`
+	PassthroughRouteRules *PassthroughRouteRules   `json:"PassthroughRouteRules"`
+	TCPRouteRules         map[string]string        `json:"TCPRouteRules"`
+	UDPPRouteRules        map[string]string        `json:"UDPPRouteRules"`
+	Services              map[string]ServiceConfig `json:"Services"`
+	Chains                Chains                   `json:"Chains"`
+	Features              Features                 `json:"Features"`
+}
+
+type Listener struct {
+	Protocol string `json:"Protocol"`
+	Port     int    `json:"Port"`
+	TLS      *TLS   `json:"TLS,omitempty"`
+}
+
+type TLS struct {
+	TLSModeType  string        `json:"TLSModeType"`
+	MTLS         bool          `json:"mTLS"`
+	Certificates []Certificate `json:"Certificates"`
+}
+
+type Certificate struct {
+	CommonName   string `json:"CommonName"`
+	SerialNumber string `json:"SerialNumber"`
+	Expiration   string `json:"Expiration"`
+	CertChain    string `json:"CertChain"`
+	PrivateKey   string `json:"PrivateKey"`
+	IssuingCA    string `json:"IssuingCA"`
+}
+
+type HTTPRouteRule struct {
+	Matches   []TrafficMatch `json:"Matches"`
+	RateLimit *RateLimit     `json:"RateLimit"`
+}
+
+type TrafficMatch struct {
+	Path          string            `json:"Path"`
+	Type          string            `json:"Type"`
+	Headers       map[string]string `json:"Headers"`
+	Methods       []string          `json:"Methods"`
+	TargetService map[string]int    `json:"TargetService"`
+	RateLimit     *RateLimit        `json:"RateLimit,omitempty"`
+}
+
+type RateLimit struct {
+	Backlog              int             `json:"Backlog"`
+	Requests             int             `json:"Requests"`
+	Burst                int             `json:"Burst"`
+	StatTimeWindow       int             `json:"StatTimeWindow"`
+	ResponseStatusCode   int             `json:"ResponseStatusCode"`
+	ResponseHeadersToAdd []NameValuePair `json:"ResponseHeadersToAdd"`
+}
+
+type NameValuePair struct {
+	Name  string `json:"Name"`
+	Value string `json:"Value"`
+}
+
+type PassthroughRouteRules struct {
+	DefaultUpstreamPort int                                `json:"DefaultUpstreamPort"`
+	Mappings            map[string]PassthroughRouteMapping `json:"Mappings"`
+}
+
+type PassthroughRouteMapping map[string]string
+
+type ServiceConfig struct {
+	Endpoints          map[string]Endpoint `json:"Endpoints"`
+	Filters            []Filter            `json:"Filters"`
+	ConnectionSettings *ConnectionSettings `json:"ConnectionSettings"`
+	RetryPolicy        *RetryPolicy        `json:"RetryPolicy"`
+	UpstreamCert       *UpstreamCert       `json:"UpstreamCert"`
+}
+
+type Endpoint struct {
+	Weight       int               `json:"Weight"`
+	Tags         map[string]string `json:"Tags"`
+	UpstreamCert *UpstreamCert     `json:"UpstreamCert"`
+}
+
+type Filter gwv1beta1.HTTPRouteFilter
+
+type ConnectionSettings struct {
+	TCP  *TCPConnectionSettings  `json:"tcp"`
+	HTTP *HTTPConnectionSettings `json:"http"`
+}
+
+type TCPConnectionSettings struct {
+	MaxConnections int `json:"MaxConnections"`
+}
+
+type HTTPConnectionSettings struct {
+	MaxRequestsPerConnection int             `json:"MaxRequestsPerConnection"`
+	MaxPendingRequests       int             `json:"MaxPendingRequests"`
+	CircuitBreaker           *CircuitBreaker `json:"CircuitBreaker"`
+}
+
+type CircuitBreaker struct {
+	MinRequestAmount        int     `json:"MinRequestAmount"`
+	StatTimeWindow          int     `json:"StatTimeWindow"`
+	SlowTimeThreshold       float64 `json:"SlowTimeThreshold"`
+	SlowAmountThreshold     int     `json:"SlowAmountThreshold"`
+	SlowRatioThreshold      float64 `json:"SlowRatioThreshold"`
+	ErrorAmountThreshold    int     `json:"ErrorAmountThreshold"`
+	ErrorRatioThreshold     float64 `json:"ErrorRatioThreshold"`
+	DegradedTimeWindow      int     `json:"DegradedTimeWindow"`
+	DegradedStatusCode      int     `json:"DegradedStatusCode"`
+	DegradedResponseContent string  `json:"DegradedResponseContent"`
+}
+type UpstreamCert struct {
+	OsmIssued  bool   `json:"OsmIssued"`
+	CertChain  string `json:"CertChain"`
+	PrivateKey string `json:"PrivateKey"`
+	IssuingCA  string `json:"IssuingCA"`
+}
+
+type RetryPolicy struct {
+	RetryOn                  string `json:"RetryOn"`
+	PerTryTimeout            int    `json:"PerTryTimeout"`
+	NumRetries               int    `json:"NumRetries"`
+	RetryBackoffBaseInterval int    `json:"RetryBackoffBaseInterval"`
+}
+type Chains struct {
+	InboundHTTP  []string `json:"inbound-http"`
+	InboundTCP   []string `json:"inbound-tcp"`
+	OutboundHTTP []string `json:"outbound-http"`
+	OutboundTCP  []string `json:"outbound-tcp"`
+}
+
+type Features struct {
+	Logging struct{} `json:"Logging"`
+	Tracing struct{} `json:"Tracing"`
+	Metrics struct{} `json:"Metrics"`
+}