Пример #1
0
func (l *HttpLocation) copyRequest(req *http.Request, body netutils.MultiReader, endpoint endpoint.Endpoint) *http.Request {
	outReq := new(http.Request)
	*outReq = *req // includes shallow copies of maps, but we handle this below

	// Set the body to the enhanced body that can be re-read multiple times and buffered to disk
	outReq.Body = body

	endpointURL := endpoint.GetUrl()
	outReq.URL.Scheme = endpointURL.Scheme
	outReq.URL.Host = endpointURL.Host
	// workaround for https://github.com/golang/go/issues/10433
	outReq.URL.Opaque = mergeStartingSlashes(req.RequestURI)
	// raw query is already included in RequestURI, so ignore it to avoid dupes
	outReq.URL.RawQuery = ""

	outReq.Proto = "HTTP/1.1"
	outReq.ProtoMajor = 1
	outReq.ProtoMinor = 1

	// Overwrite close flag so we can keep persistent connection for the backend servers
	outReq.Close = false

	outReq.Header = make(http.Header)
	netutils.CopyHeaders(outReq.Header, req.Header)
	return outReq
}
Пример #2
0
func (r *RoundRobin) RemoveEndpoint(endpoint endpoint.Endpoint) error {
	r.mutex.Lock()
	defer r.mutex.Unlock()

	e, index := r.findEndpointByUrl(endpoint.GetUrl())
	if e == nil {
		return fmt.Errorf("Endpoint not found")
	}
	r.endpoints = append(r.endpoints[:index], r.endpoints[index+1:]...)
	r.resetState()
	return nil
}
Пример #3
0
// In case if endpoint is already present in the load balancer, returns error
func (r *RoundRobin) AddEndpointWithOptions(endpoint endpoint.Endpoint, options EndpointOptions) error {
	r.mutex.Lock()
	defer r.mutex.Unlock()

	if endpoint == nil {
		return fmt.Errorf("Endpoint can't be nil")
	}

	if e, _ := r.findEndpointByUrl(endpoint.GetUrl()); e != nil {
		return fmt.Errorf("Endpoint already exists")
	}

	we, err := r.newWeightedEndpoint(endpoint, options)
	if err != nil {
		return err
	}

	r.endpoints = append(r.endpoints, we)
	r.resetState()
	return nil
}