Fix too many redirect
Signed-off-by: Emile Vauge <emile@vauge.com>
This commit is contained in:
Emile Vauge
parent
ca9e36ebe3
commit
e7a73d3fb3
1 changed files with 108 additions and 110 deletions
218
server/server.go
218
server/server.go
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@ -549,12 +549,10 @@ func (server *Server) buildEntryPoints(globalConfiguration GlobalConfiguration)
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func (server *Server) loadConfig(configurations configs, globalConfiguration GlobalConfiguration) (map[string]*serverEntryPoint, error) {
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serverEntryPoints := server.buildEntryPoints(globalConfiguration)
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redirectHandlers := make(map[string]negroni.Handler)
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backends := map[string]http.Handler{}
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backendsHealthcheck := map[string]*healthcheck.BackendHealthCheck{}
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backend2FrontendMap := map[string]string{}
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for _, configuration := range configurations {
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frontendNames := sortedFrontendNamesForConfig(configuration)
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frontend:
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@ -609,7 +607,7 @@ func (server *Server) loadConfig(configurations configs, globalConfiguration Glo
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redirectHandlers[entryPointName] = handler
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}
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}
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if backends[frontend.Backend] == nil {
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if backends[entryPointName+frontend.Backend] == nil {
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log.Debugf("Creating backend %s", frontend.Backend)
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var lb http.Handler
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rr, _ := roundrobin.New(saveBackend)
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@ -634,131 +632,131 @@ func (server *Server) loadConfig(configurations configs, globalConfiguration Glo
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sticky = roundrobin.NewStickySession(cookiename)
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}
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switch lbMethod {
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case types.Drr:
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log.Debugf("Creating load-balancer drr")
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rebalancer, _ := roundrobin.NewRebalancer(rr, roundrobin.RebalancerLogger(oxyLogger))
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if stickysession {
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log.Debugf("Sticky session with cookie %v", cookiename)
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rebalancer, _ = roundrobin.NewRebalancer(rr, roundrobin.RebalancerLogger(oxyLogger), roundrobin.RebalancerStickySession(sticky))
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switch lbMethod {
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case types.Drr:
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log.Debugf("Creating load-balancer drr")
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rebalancer, _ := roundrobin.NewRebalancer(rr, roundrobin.RebalancerLogger(oxyLogger))
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if stickysession {
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log.Debugf("Sticky session with cookie %v", cookiename)
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rebalancer, _ = roundrobin.NewRebalancer(rr, roundrobin.RebalancerLogger(oxyLogger), roundrobin.RebalancerStickySession(sticky))
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}
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lb = rebalancer
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for serverName, server := range configuration.Backends[frontend.Backend].Servers {
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url, err := url.Parse(server.URL)
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if err != nil {
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log.Errorf("Error parsing server URL %s: %v", server.URL, err)
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log.Errorf("Skipping frontend %s...", frontendName)
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continue frontend
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}
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lb = rebalancer
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for serverName, server := range configuration.Backends[frontend.Backend].Servers {
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url, err := url.Parse(server.URL)
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if err != nil {
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log.Errorf("Error parsing server URL %s: %v", server.URL, err)
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log.Errorf("Skipping frontend %s...", frontendName)
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continue frontend
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}
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backend2FrontendMap[url.String()] = frontendName
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log.Debugf("Creating server %s at %s with weight %d", serverName, url.String(), server.Weight)
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if err := rebalancer.UpsertServer(url, roundrobin.Weight(server.Weight)); err != nil {
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log.Errorf("Error adding server %s to load balancer: %v", server.URL, err)
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log.Errorf("Skipping frontend %s...", frontendName)
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continue frontend
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}
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hcOpts := parseHealthCheckOptions(rebalancer,frontend.Backend, configuration.Backends[frontend.Backend].HealthCheck, *globalConfiguration.HealthCheck)
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if hcOpts != nil {
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log.Debugf("Setting up backend health check %s", *hcOpts)
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backendsHealthcheck[frontend.Backend] = healthcheck.NewBackendHealthCheck(*hcOpts)
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}
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backend2FrontendMap[url.String()] = frontendName
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log.Debugf("Creating server %s at %s with weight %d", serverName, url.String(), server.Weight)
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if err := rebalancer.UpsertServer(url, roundrobin.Weight(server.Weight)); err != nil {
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log.Errorf("Error adding server %s to load balancer: %v", server.URL, err)
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log.Errorf("Skipping frontend %s...", frontendName)
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continue frontend
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}
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case types.Wrr:
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log.Debugf("Creating load-balancer wrr")
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if stickysession {
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log.Debugf("Sticky session with cookie %v", cookiename)
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rr, _ = roundrobin.New(saveBackend, roundrobin.EnableStickySession(sticky))
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}
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lb = rr
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for serverName, server := range configuration.Backends[frontend.Backend].Servers {
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url, err := url.Parse(server.URL)
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if err != nil {
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log.Errorf("Error parsing server URL %s: %v", server.URL, err)
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log.Errorf("Skipping frontend %s...", frontendName)
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continue frontend
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}
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backend2FrontendMap[url.String()] = frontendName
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log.Debugf("Creating server %s at %s with weight %d", serverName, url.String(), server.Weight)
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if err := rr.UpsertServer(url, roundrobin.Weight(server.Weight)); err != nil {
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log.Errorf("Error adding server %s to load balancer: %v", server.URL, err)
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log.Errorf("Skipping frontend %s...", frontendName)
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continue frontend
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}
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}
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hcOpts := parseHealthCheckOptions(rr,frontend.Backend, configuration.Backends[frontend.Backend].HealthCheck, *globalConfiguration.HealthCheck)
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if hcOpts != nil {
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log.Debugf("Setting up backend health check %s", *hcOpts)
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hcOpts := parseHealthCheckOptions(rebalancer, frontend.Backend, configuration.Backends[frontend.Backend].HealthCheck, *globalConfiguration.HealthCheck)
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if hcOpts != nil {
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log.Debugf("Setting up backend health check %s", *hcOpts)
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backendsHealthcheck[frontend.Backend] = healthcheck.NewBackendHealthCheck(*hcOpts)
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}
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}
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maxConns := configuration.Backends[frontend.Backend].MaxConn
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if maxConns != nil && maxConns.Amount != 0 {
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extractFunc, err := utils.NewExtractor(maxConns.ExtractorFunc)
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case types.Wrr:
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log.Debugf("Creating load-balancer wrr")
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if stickysession {
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log.Debugf("Sticky session with cookie %v", cookiename)
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rr, _ = roundrobin.New(saveBackend, roundrobin.EnableStickySession(sticky))
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}
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lb = rr
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for serverName, server := range configuration.Backends[frontend.Backend].Servers {
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url, err := url.Parse(server.URL)
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if err != nil {
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log.Errorf("Error creating connlimit: %v", err)
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log.Errorf("Error parsing server URL %s: %v", server.URL, err)
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log.Errorf("Skipping frontend %s...", frontendName)
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continue frontend
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}
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log.Debugf("Creating load-balancer connlimit")
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lb, err = connlimit.New(lb, extractFunc, maxConns.Amount, connlimit.Logger(oxyLogger))
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if err != nil {
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log.Errorf("Error creating connlimit: %v", err)
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backend2FrontendMap[url.String()] = frontendName
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log.Debugf("Creating server %s at %s with weight %d", serverName, url.String(), server.Weight)
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if err := rr.UpsertServer(url, roundrobin.Weight(server.Weight)); err != nil {
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log.Errorf("Error adding server %s to load balancer: %v", server.URL, err)
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log.Errorf("Skipping frontend %s...", frontendName)
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continue frontend
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}
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}
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// retry ?
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if globalConfiguration.Retry != nil {
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retries := len(configuration.Backends[frontend.Backend].Servers)
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if globalConfiguration.Retry.Attempts > 0 {
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retries = globalConfiguration.Retry.Attempts
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}
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lb = middlewares.NewRetry(retries, lb)
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log.Debugf("Creating retries max attempts %d", retries)
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hcOpts := parseHealthCheckOptions(rr, frontend.Backend, configuration.Backends[frontend.Backend].HealthCheck, *globalConfiguration.HealthCheck)
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if hcOpts != nil {
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log.Debugf("Setting up backend health check %s", *hcOpts)
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backendsHealthcheck[frontend.Backend] = healthcheck.NewBackendHealthCheck(*hcOpts)
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}
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}
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maxConns := configuration.Backends[frontend.Backend].MaxConn
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if maxConns != nil && maxConns.Amount != 0 {
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extractFunc, err := utils.NewExtractor(maxConns.ExtractorFunc)
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if err != nil {
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log.Errorf("Error creating connlimit: %v", err)
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log.Errorf("Skipping frontend %s...", frontendName)
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continue frontend
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}
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log.Debugf("Creating load-balancer connlimit")
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lb, err = connlimit.New(lb, extractFunc, maxConns.Amount, connlimit.Logger(oxyLogger))
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if err != nil {
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log.Errorf("Error creating connlimit: %v", err)
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log.Errorf("Skipping frontend %s...", frontendName)
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continue frontend
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}
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}
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// retry ?
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if globalConfiguration.Retry != nil {
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retries := len(configuration.Backends[frontend.Backend].Servers)
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if globalConfiguration.Retry.Attempts > 0 {
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retries = globalConfiguration.Retry.Attempts
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}
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lb = middlewares.NewRetry(retries, lb)
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log.Debugf("Creating retries max attempts %d", retries)
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}
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if server.globalConfiguration.Web != nil && server.globalConfiguration.Web.Metrics != nil {
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if server.globalConfiguration.Web.Metrics.Prometheus != nil {
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metricsMiddlewareBackend := middlewares.NewMetricsWrapper(middlewares.NewPrometheus(frontend.Backend, server.globalConfiguration.Web.Metrics.Prometheus))
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negroni.Use(metricsMiddlewareBackend)
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}
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}
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if len(frontend.BasicAuth) > 0 {
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users := types.Users{}
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for _, user := range frontend.BasicAuth {
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users = append(users, user)
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}
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if server.globalConfiguration.Web != nil && server.globalConfiguration.Web.Metrics != nil {
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if server.globalConfiguration.Web.Metrics.Prometheus != nil {
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metricsMiddlewareBackend := middlewares.NewMetricsWrapper(middlewares.NewPrometheus(frontend.Backend, server.globalConfiguration.Web.Metrics.Prometheus))
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negroni.Use(metricsMiddlewareBackend)
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}
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auth := &types.Auth{}
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auth.Basic = &types.Basic{
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Users: users,
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}
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if len(frontend.BasicAuth) > 0 {
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users := types.Users{}
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for _, user := range frontend.BasicAuth {
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users = append(users, user)
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}
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auth := &types.Auth{}
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auth.Basic = &types.Basic{
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Users: users,
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}
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authMiddleware, err := middlewares.NewAuthenticator(auth)
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if err != nil {
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log.Fatal("Error creating Auth: ", err)
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}
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negroni.Use(authMiddleware)
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} if configuration.Backends[frontend.Backend].CircuitBreaker != nil {
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log.Debugf("Creating circuit breaker %s", configuration.Backends[frontend.Backend].CircuitBreaker.Expression)
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cbreaker, err := middlewares.NewCircuitBreaker(lb, configuration.Backends[frontend.Backend].CircuitBreaker.Expression, cbreaker.Logger(oxyLogger))
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if err != nil {
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log.Errorf("Error creating circuit breaker: %v", err)
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log.Errorf("Skipping frontend %s...", frontendName)
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continue frontend
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}
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negroni.Use(cbreaker)
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} else {
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negroni.UseHandler(lb)
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authMiddleware, err := middlewares.NewAuthenticator(auth)
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if err != nil {
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log.Fatal("Error creating Auth: ", err)
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}
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backends[frontend.Backend] = negroni
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negroni.Use(authMiddleware)
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}
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if configuration.Backends[frontend.Backend].CircuitBreaker != nil {
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log.Debugf("Creating circuit breaker %s", configuration.Backends[frontend.Backend].CircuitBreaker.Expression)
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cbreaker, err := middlewares.NewCircuitBreaker(lb, configuration.Backends[frontend.Backend].CircuitBreaker.Expression, cbreaker.Logger(oxyLogger))
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if err != nil {
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log.Errorf("Error creating circuit breaker: %v", err)
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log.Errorf("Skipping frontend %s...", frontendName)
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continue frontend
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}
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negroni.Use(cbreaker)
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} else {
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log.Debugf("Reusing backend %s", frontend.Backend)
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negroni.UseHandler(lb)
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}
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if frontend.Priority > 0 {
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newServerRoute.route.Priority(frontend.Priority)
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}
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server.wireFrontendBackend(newServerRoute, backends[frontend.Backend])
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backends[entryPointName+frontend.Backend] = negroni
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} else {
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log.Debugf("Reusing backend %s", frontend.Backend)
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}
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if frontend.Priority > 0 {
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newServerRoute.route.Priority(frontend.Priority)
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}
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server.wireFrontendBackend(newServerRoute, backends[entryPointName+frontend.Backend])
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err := newServerRoute.route.GetError()
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if err != nil {
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