Add Backends.SSLPassthrough attribute

core/pkg/ingress/controller/controller.go

@@ -414,6 +414,7 @@ func (ic *GenericController) sync(key interface{}) error {
 
 		for _, loc := range server.Locations {
 			if loc.Path != rootLocation {
+				glog.Warningf("ignoring path %v of ssl passthrough host %v", loc.Path, server.Hostname)
 				continue
 			}
 			passUpstreams = append(passUpstreams, &ingress.SSLPassthroughBackend{
@@ -683,6 +684,40 @@ func (ic *GenericController) getBackendServers() ([]*ingress.Backend, []*ingress
 		}
 	}
 
+	// Configure Backends[].SSLPassthrough
+	for _, upstream := range upstreams {
+		isHTTP := false
+		isHTTPSfrom := []*ingress.Server{}
+		for _, server := range servers {
+			for _, location := range server.Locations {
+				if upstream.Name == location.Backend {
+					if server.SSLPassthrough {
+						if location.Path == rootLocation {
+							if location.Backend == defUpstreamName {
+								glog.Warningf("ignoring ssl passthrough of %v as it doesn't have a default backend (root context)", server.Hostname)
+							} else {
+								isHTTPSfrom = append(isHTTPSfrom, server)
+							}
+						}
+					} else {
+						isHTTP = true
+					}
+				}
+			}
+		}
+		if len(isHTTPSfrom) > 0 {
+			if isHTTP {
+				for _, server := range isHTTPSfrom {
+					glog.Warningf("backend type mismatch on %v, assuming HTTP on ssl passthrough host %v", upstream.Name, server.Hostname)
+					// removing this server from the PassthroughBackends slice
+					server.SSLPassthrough = false
+				}
+			} else {
+				upstream.SSLPassthrough = true
+			}
+		}
+	}
+
 	// TODO: find a way to make this more readable
 	// The structs must be ordered to always generate the same file
 	// if the content does not change.

core/pkg/ingress/types.go

@@ -155,6 +155,8 @@ type Backend struct {
 	// The certificate used in the endpoint cannot be a self signed certificate
 	// TODO: add annotation to allow the load of ca certificate
 	Secure bool `json:"secure"`
+	// SSLPassthrough indicates that Ingress controller will delegate TLS termination to the endpoints.
+	SSLPassthrough bool `json:"sslPassthrough"`
 	// Endpoints contains the list of endpoints currently running
 	Endpoints []Endpoint `json:"endpoints"`
 	// StickySession contains the StickyConfig object with stickness configuration