mirror of
https://github.com/traefik/traefik.git
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116 lines
4.4 KiB
Go
116 lines
4.4 KiB
Go
package ingressnginx
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import (
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"errors"
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"reflect"
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"strconv"
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"strings"
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netv1 "k8s.io/api/networking/v1"
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)
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type ingressConfig struct {
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AuthType *string `annotation:"nginx.ingress.kubernetes.io/auth-type"`
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AuthSecret *string `annotation:"nginx.ingress.kubernetes.io/auth-secret"`
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AuthRealm *string `annotation:"nginx.ingress.kubernetes.io/auth-realm"`
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AuthSecretType *string `annotation:"nginx.ingress.kubernetes.io/auth-secret-type"`
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AuthURL *string `annotation:"nginx.ingress.kubernetes.io/auth-url"`
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AuthResponseHeaders *string `annotation:"nginx.ingress.kubernetes.io/auth-response-headers"`
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ForceSSLRedirect *bool `annotation:"nginx.ingress.kubernetes.io/force-ssl-redirect"`
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SSLRedirect *bool `annotation:"nginx.ingress.kubernetes.io/ssl-redirect"`
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SSLPassthrough *bool `annotation:"nginx.ingress.kubernetes.io/ssl-passthrough"`
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UseRegex *bool `annotation:"nginx.ingress.kubernetes.io/use-regex"`
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Affinity *string `annotation:"nginx.ingress.kubernetes.io/affinity"`
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SessionCookieName *string `annotation:"nginx.ingress.kubernetes.io/session-cookie-name"`
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SessionCookieSecure *bool `annotation:"nginx.ingress.kubernetes.io/session-cookie-secure"`
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SessionCookiePath *string `annotation:"nginx.ingress.kubernetes.io/session-cookie-path"`
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SessionCookieDomain *string `annotation:"nginx.ingress.kubernetes.io/session-cookie-domain"`
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SessionCookieSameSite *string `annotation:"nginx.ingress.kubernetes.io/session-cookie-samesite"`
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SessionCookieMaxAge *int `annotation:"nginx.ingress.kubernetes.io/session-cookie-max-age"`
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ServiceUpstream *bool `annotation:"nginx.ingress.kubernetes.io/service-upstream"`
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BackendProtocol *string `annotation:"nginx.ingress.kubernetes.io/backend-protocol"`
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ProxySSLSecret *string `annotation:"nginx.ingress.kubernetes.io/proxy-ssl-secret"`
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ProxySSLVerify *string `annotation:"nginx.ingress.kubernetes.io/proxy-ssl-verify"`
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ProxySSLName *string `annotation:"nginx.ingress.kubernetes.io/proxy-ssl-name"`
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ProxySSLServerName *string `annotation:"nginx.ingress.kubernetes.io/proxy-ssl-server-name"`
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EnableCORS *bool `annotation:"nginx.ingress.kubernetes.io/enable-cors"`
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EnableCORSAllowCredentials *bool `annotation:"nginx.ingress.kubernetes.io/cors-allow-credentials"`
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CORSExposeHeaders *[]string `annotation:"nginx.ingress.kubernetes.io/cors-expose-headers"`
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CORSAllowHeaders *[]string `annotation:"nginx.ingress.kubernetes.io/cors-allow-headers"`
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CORSAllowMethods *[]string `annotation:"nginx.ingress.kubernetes.io/cors-allow-methods"`
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CORSAllowOrigin *[]string `annotation:"nginx.ingress.kubernetes.io/cors-allow-origin"`
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CORSMaxAge *int `annotation:"nginx.ingress.kubernetes.io/cors-max-age"`
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}
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// parseIngressConfig parses the annotations from an Ingress object into an ingressConfig struct.
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func parseIngressConfig(ing *netv1.Ingress) (ingressConfig, error) {
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cfg := ingressConfig{}
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cfgType := reflect.TypeOf(cfg)
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cfgValue := reflect.ValueOf(&cfg).Elem()
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for i := range cfgType.NumField() {
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field := cfgType.Field(i)
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annotation := field.Tag.Get("annotation")
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if annotation == "" {
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continue
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}
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val, ok := ing.GetAnnotations()[annotation]
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if !ok {
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continue
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}
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switch field.Type.Elem().Kind() {
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case reflect.String:
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cfgValue.Field(i).Set(reflect.ValueOf(&val))
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case reflect.Bool:
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parsed, err := strconv.ParseBool(val)
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if err == nil {
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cfgValue.Field(i).Set(reflect.ValueOf(&parsed))
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}
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case reflect.Int:
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parsed, err := strconv.Atoi(val)
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if err == nil {
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cfgValue.Field(i).Set(reflect.ValueOf(&parsed))
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}
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case reflect.Slice:
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if field.Type.Elem().Elem().Kind() == reflect.String {
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// Handle slice of strings
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var slice []string
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elements := strings.Split(val, ",")
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for _, elt := range elements {
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slice = append(slice, strings.TrimSpace(elt))
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}
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cfgValue.Field(i).Set(reflect.ValueOf(&slice))
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} else {
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return cfg, errors.New("unsupported slice type in annotations")
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}
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default:
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return cfg, errors.New("unsupported kind")
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}
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}
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return cfg, nil
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}
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// parseBackendProtocol parses the backend protocol annotation and returns the corresponding protocol string.
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func parseBackendProtocol(bp string) string {
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switch strings.ToUpper(bp) {
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case "HTTPS", "GRPCS":
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return "https"
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case "GRPC":
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return "h2c"
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default:
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return "http"
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}
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}
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