func (v *vulcan) NewMiddlewares(rsc *kubernetes.Resource) ([]loadbalancer.Middleware, error) {
mids := make([]loadbalancer.Middleware, 0, 1)
for key, def := range DefaultMiddleware {
if val, ok := rsc.GetAnnotation(key); ok && len(val) > 0 {
switch key {
case RedirectSSLID:
if b, er := strconv.ParseBool(val); er != nil || !b {
continue
}
case TraceID:
re := regexp.MustCompile(`\s+`)
list, er := json.Marshal(strings.Split(re.ReplaceAllString(val, ""), ","))
if er != nil || string(list) == "" {
logger.Warnf("Unable to json-ify trace headers: %v", er)
list = []byte("[]")
}
def = fmt.Sprintf(def, string(list), string(list))
case AuthID:
bits := strings.SplitN(val, ":", 2)
switch len(bits) {
case 1:
def = fmt.Sprintf(def, bits[0], "")
case 2:
def = fmt.Sprintf(def, bits[0], bits[1])
default:
logger.Errorf("Failed to parse provided basic auth, using default (admin:admin)")
def = fmt.Sprintf(def, "admin", "admin")
}
case MaintenanceID:
def = fmt.Sprintf(def, val)
}
m, er := engine.MiddlewareFromJSON([]byte(def), v.Registry.GetSpec, key)
if er != nil {
logger.Warnf("Failed to parse Middleware %s: %v", key, er)
logger.Debugf("%q", def)
continue
}
mids = append(mids, newMiddleware(m))
}
}
rg := regexp.MustCompile(CustomMiddlewareKeyPattern)
matches, _ := rsc.GetAnnotations(CustomMiddlewareKeyPattern)
for key, val := range matches {
if match := rg.FindStringSubmatch(key); match != nil {
id := match[1]
m, er := engine.MiddlewareFromJSON([]byte(val), v.Registry.GetSpec, id)
if er != nil {
logger.Warnf("Failed to parse Middleware %s: %v", id, er)
continue
}
mids = append(mids, newMiddleware(m))
}
}
return mids, nil
}
