Changed HTTPGetAction to allow user-defined schemes

api/swagger-spec/v1.json

@@ -12722,6 +12722,10 @@
      "host": {
       "type": "string",
       "description": "hostname to connect to; defaults to pod IP"
+     },
+     "scheme": {
+      "type": "string",
+      "description": "scheme to connect with, must be HTTP or HTTPS, defaults to HTTP"
      }
     }
    },

api/swagger-spec/v1beta3.json

@@ -12724,6 +12724,10 @@
      "host": {
       "type": "string",
       "description": "hostname to connect to; defaults to pod IP"
+     },
+     "scheme": {
+      "type": "string",
+      "description": "scheme to connect with, must be HTTP or HTTPS, defaults to HTTP"
      }
     }
    },

cmd/kubernetes/kubernetes.go

@@ -88,7 +88,7 @@ func runApiServer(etcdClient tools.EtcdClient, addr net.IP, port int, masterServ
 		EtcdHelper: helper,
 		KubeletClient: &client.HTTPKubeletClient{
 			Client: http.DefaultClient,
-			Port:   10250,
+			Config: &client.KubeletConfig{Port: 10250},
 		},
 		EnableCoreControllers: true,
 		EnableLogsSupport:     false,

examples/openshift-origin/.gitignore

 config/
 secret.json
+*.log

pkg/api/deep_copy_generated.go

@@ -505,6 +505,7 @@ func deepCopy_api_HTTPGetAction(in HTTPGetAction, out *HTTPGetAction, c *convers
 		return err
 	}
 	out.Host = in.Host
+	out.Scheme = in.Scheme
 	return nil
 }
 

pkg/api/testing/fuzzer.go

@@ -252,8 +252,9 @@ func FuzzerFor(t *testing.T, version string, src rand.Source) *fuzz.Fuzzer {
 			s.Phase = api.NamespaceActive
 		},
 		func(http *api.HTTPGetAction, c fuzz.Continue) {
-			c.FuzzNoCustom(http)        // fuzz self without calling this function again
-			http.Path = "/" + http.Path // can't be blank
+			c.FuzzNoCustom(http)            // fuzz self without calling this function again
+			http.Path = "/" + http.Path     // can't be blank
+			http.Scheme = "x" + http.Scheme // can't be blank
 		},
 		func(ss *api.ServiceSpec, c fuzz.Continue) {
 			c.FuzzNoCustom(ss) // fuzz self without calling this function again

pkg/api/types.go

@@ -610,8 +610,20 @@ type HTTPGetAction struct {
 	Port util.IntOrString `json:"port,omitempty"`
 	// Optional: Host name to connect to, defaults to the pod IP.
 	Host string `json:"host,omitempty"`
+	// Optional: Scheme to use for connecting to the host, defaults to HTTP.
+	Scheme URIScheme `json:"scheme,omitempty"`
 }
 
+// URIScheme identifies the scheme used for connection to a host for Get actions
+type URIScheme string
+
+const (
+	// URISchemeHTTP means that the scheme used will be http://
+	URISchemeHTTP URIScheme = "HTTP"
+	// URISchemeHTTPS means that the scheme used will be https://
+	URISchemeHTTPS URIScheme = "HTTPS"
+)
+
 // TCPSocketAction describes an action based on opening a socket
 type TCPSocketAction struct {
 	// Required: Port to connect to.

pkg/api/v1/conversion_generated.go

@@ -592,6 +592,7 @@ func convert_api_HTTPGetAction_To_v1_HTTPGetAction(in *api.HTTPGetAction, out *H
 		return err
 	}
 	out.Host = in.Host
+	out.Scheme = URIScheme(in.Scheme)
 	return nil
 }
 
@@ -2903,6 +2904,7 @@ func convert_v1_HTTPGetAction_To_api_HTTPGetAction(in *HTTPGetAction, out *api.H
 		return err
 	}
 	out.Host = in.Host
+	out.Scheme = api.URIScheme(in.Scheme)
 	return nil
 }
 

pkg/api/v1/deep_copy_generated.go

@@ -518,6 +518,7 @@ func deepCopy_v1_HTTPGetAction(in HTTPGetAction, out *HTTPGetAction, c *conversi
 		return err
 	}
 	out.Host = in.Host
+	out.Scheme = in.Scheme
 	return nil
 }
 

pkg/api/v1/defaults.go

@@ -137,6 +137,9 @@ func addDefaultingFuncs() {
 			if obj.Path == "" {
 				obj.Path = "/"
 			}
+			if obj.Scheme == "" {
+				obj.Scheme = URISchemeHTTP
+			}
 		},
 		func(obj *NamespaceStatus) {
 			if obj.Phase == "" {

pkg/api/v1/types.go

@@ -586,8 +586,20 @@ type HTTPGetAction struct {
 	Port util.IntOrString `json:"port" description:"number or name of the port to access on the container"`
 	// Optional: Host name to connect to, defaults to the pod IP.
 	Host string `json:"host,omitempty" description:"hostname to connect to; defaults to pod IP"`
+	// Optional: Scheme to use for connecting to the host, defaults to HTTP.
+	Scheme URIScheme `json:"scheme,omitempty" description:"scheme to connect with, must be HTTP or HTTPS, defaults to HTTP"`
 }
 
+// URIScheme identifies the scheme used for connection to a host for Get actions
+type URIScheme string
+
+const (
+	// URISchemeHTTP means that the scheme used will be http://
+	URISchemeHTTP URIScheme = "HTTP"
+	// URISchemeHTTPS means that the scheme used will be https://
+	URISchemeHTTPS URIScheme = "HTTPS"
+)
+
 // TCPSocketAction describes an action based on opening a socket
 type TCPSocketAction struct {
 	// Required: Port to connect to.

pkg/api/v1beta3/conversion_generated.go

@@ -450,6 +450,7 @@ func convert_api_HTTPGetAction_To_v1beta3_HTTPGetAction(in *api.HTTPGetAction, o
 		return err
 	}
 	out.Host = in.Host
+	out.Scheme = URIScheme(in.Scheme)
 	return nil
 }
 
@@ -2515,6 +2516,7 @@ func convert_v1beta3_HTTPGetAction_To_api_HTTPGetAction(in *HTTPGetAction, out *
 		return err
 	}
 	out.Host = in.Host
+	out.Scheme = api.URIScheme(in.Scheme)
 	return nil
 }
 

pkg/api/v1beta3/deep_copy_generated.go

@@ -522,6 +522,7 @@ func deepCopy_v1beta3_HTTPGetAction(in HTTPGetAction, out *HTTPGetAction, c *con
 		return err
 	}
 	out.Host = in.Host
+	out.Scheme = in.Scheme
 	return nil
 }
 

pkg/api/v1beta3/defaults.go

@@ -141,6 +141,9 @@ func addDefaultingFuncs() {
 			if obj.Path == "" {
 				obj.Path = "/"
 			}
+			if obj.Scheme == "" {
+				obj.Scheme = URISchemeHTTP
+			}
 		},
 		func(obj *NamespaceStatus) {
 			if obj.Phase == "" {

pkg/api/v1beta3/types.go

@@ -586,8 +586,20 @@ type HTTPGetAction struct {
 	Port util.IntOrString `json:"port" description:"number or name of the port to access on the container"`
 	// Optional: Host name to connect to, defaults to the pod IP.
 	Host string `json:"host,omitempty" description:"hostname to connect to; defaults to pod IP"`
+	// Optional: Scheme to use for connecting to the host, defaults to HTTP.
+	Scheme URIScheme `json:"scheme,omitempty" description:"scheme to connect with, must be HTTP or HTTPS, defaults to HTTP"`
 }
 
+// URIScheme identifies the scheme used for connection to a host for Get actions
+type URIScheme string
+
+const (
+	// URISchemeHTTP means that the scheme used will be http://
+	URISchemeHTTP URIScheme = "HTTP"
+	// URISchemeHTTPS means that the scheme used will be https://
+	URISchemeHTTPS URIScheme = "HTTPS"
+)
+
 // TCPSocketAction describes an action based on opening a socket
 type TCPSocketAction struct {
 	// Required: Port to connect to.

pkg/api/validation/validation.go

@@ -762,6 +762,10 @@ func validateHTTPGetAction(http *api.HTTPGetAction) errs.ValidationErrorList {
 	} else if http.Port.Kind == util.IntstrString && len(http.Port.StrVal) == 0 {
 		allErrors = append(allErrors, errs.NewFieldRequired("port"))
 	}
+	supportedSchemes := util.NewStringSet(string(api.URISchemeHTTP), string(api.URISchemeHTTPS))
+	if !supportedSchemes.Has(string(http.Scheme)) {
+		allErrors = append(allErrors, errs.NewFieldInvalid("scheme", http.Scheme, fmt.Sprintf("must be one of %v", supportedSchemes.List())))
+	}
 	return allErrors
 }
 

pkg/api/validation/validation_test.go

@@ -712,9 +712,9 @@ func TestValidateProbe(t *testing.T) {
 func TestValidateHandler(t *testing.T) {
 	successCases := []api.Handler{
 		{Exec: &api.ExecAction{Command: []string{"echo"}}},
-		{HTTPGet: &api.HTTPGetAction{Path: "/", Port: util.NewIntOrStringFromInt(1), Host: ""}},
-		{HTTPGet: &api.HTTPGetAction{Path: "/foo", Port: util.NewIntOrStringFromInt(65535), Host: "host"}},
-		{HTTPGet: &api.HTTPGetAction{Path: "/", Port: util.NewIntOrStringFromString("port"), Host: ""}},
+		{HTTPGet: &api.HTTPGetAction{Path: "/", Port: util.NewIntOrStringFromInt(1), Host: "", Scheme: "HTTP"}},
+		{HTTPGet: &api.HTTPGetAction{Path: "/foo", Port: util.NewIntOrStringFromInt(65535), Host: "host", Scheme: "HTTP"}},
+		{HTTPGet: &api.HTTPGetAction{Path: "/", Port: util.NewIntOrStringFromString("port"), Host: "", Scheme: "HTTP"}},
 	}
 	for _, h := range successCases {
 		if errs := validateHandler(&h); len(errs) != 0 {

pkg/client/kubelet.go

@@ -44,10 +44,8 @@ type ConnectionInfoGetter interface {
 
 // HTTPKubeletClient is the default implementation of KubeletHealthchecker, accesses the kubelet over HTTP.
 type HTTPKubeletClient struct {
-	Client      *http.Client
-	Config      *KubeletConfig
-	Port        uint
-	EnableHttps bool
+	Client *http.Client
+	Config *KubeletConfig
 }
 
 func MakeTransport(config *KubeletConfig) (http.RoundTripper, error) {
@@ -83,33 +81,31 @@ func NewKubeletClient(config *KubeletConfig) (KubeletClient, error) {
 		Timeout:   config.HTTPTimeout,
 	}
 	return &HTTPKubeletClient{
-		Client:      c,
-		Config:      config,
-		Port:        config.Port,
-		EnableHttps: config.EnableHttps,
+		Client: c,
+		Config: config,
 	}, nil
 }
 
 func (c *HTTPKubeletClient) GetConnectionInfo(host string) (string, uint, http.RoundTripper, error) {
 	scheme := "http"
-	if c.EnableHttps {
+	if c.Config.EnableHttps {
 		scheme = "https"
 	}
-	return scheme, c.Port, c.Client.Transport, nil
+	return scheme, c.Config.Port, c.Client.Transport, nil
 }
 
-func (c *HTTPKubeletClient) url(host, path, query string) string {
+func (c *HTTPKubeletClient) url(host, path, query string) *url.URL {
 	scheme := "http"
-	if c.EnableHttps {
+	if c.Config.EnableHttps {
 		scheme = "https"
 	}
 
-	return (&url.URL{
+	return &url.URL{
 		Scheme:   scheme,
-		Host:     net.JoinHostPort(host, strconv.FormatUint(uint64(c.Port), 10)),
+		Host:     net.JoinHostPort(host, strconv.FormatUint(uint64(c.Config.Port), 10)),
 		Path:     path,
 		RawQuery: query,
-	}).String()
+	}
 }
 
 func (c *HTTPKubeletClient) HealthCheck(host string) (probe.Result, string, error) {

pkg/client/kubelet_test.go

@@ -57,7 +57,7 @@ func TestHTTPKubeletClient(t *testing.T) {
 
 	c := &HTTPKubeletClient{
 		Client: http.DefaultClient,
-		Port:   uint(port),
+		Config: &KubeletConfig{Port: uint(port)},
 	}
 	gotObj, _, err := c.HealthCheck(parts[0])
 	if err != nil {
@@ -91,7 +91,7 @@ func TestHTTPKubeletClientError(t *testing.T) {
 
 	c := &HTTPKubeletClient{
 		Client: http.DefaultClient,
-		Port:   uint(port),
+		Config: &KubeletConfig{Port: uint(port)},
 	}
 	gotObj, _, err := c.HealthCheck(parts[0])
 	if gotObj != expectObj {

pkg/kubelet/prober/prober.go

@@ -18,7 +18,10 @@ package prober
 
 import (
 	"fmt"
+	"net"
+	"net/url"
 	"strconv"
+	"strings"
 	"time"
 
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
@@ -200,13 +203,19 @@ func (pb *prober) runProbe(p *api.Probe, pod *api.Pod, status api.PodStatus, con
 		return pb.exec.Probe(pb.newExecInContainer(pod, container, containerID, p.Exec.Command))
 	}
 	if p.HTTPGet != nil {
+		scheme := strings.ToLower(string(p.HTTPGet.Scheme))
+		host := p.HTTPGet.Host
+		if host == "" {
+			host = status.PodIP
+		}
 		port, err := extractPort(p.HTTPGet.Port, container)
 		if err != nil {
 			return probe.Unknown, "", err
 		}
-		host, port, path := extractGetParams(p.HTTPGet, status, port)
-		glog.V(4).Infof("HTTP-Probe Host: %v, Port: %v, Path: %v", host, port, path)
-		return pb.http.Probe(host, port, path, timeout)
+		path := p.HTTPGet.Path
+		glog.V(4).Infof("HTTP-Probe Host: %v://%v, Port: %v, Path: %v", scheme, host, port, path)
+		url := formatURL(scheme, host, port, path)
+		return pb.http.Probe(url, timeout)
 	}
 	if p.TCPSocket != nil {
 		port, err := extractPort(p.TCPSocket.Port, container)
@@ -220,50 +229,45 @@ func (pb *prober) runProbe(p *api.Probe, pod *api.Pod, status api.PodStatus, con
 	return probe.Unknown, "", nil
 }
 
-func extractGetParams(action *api.HTTPGetAction, status api.PodStatus, port int) (string, int, string) {
-	host := action.Host
-	if host == "" {
-		host = status.PodIP
-	}
-	return host, port, action.Path
-}
-
 func extractPort(param util.IntOrString, container api.Container) (int, error) {
 	port := -1
 	var err error
 	switch param.Kind {
 	case util.IntstrInt:
-		port := param.IntVal
-		if port > 0 && port < 65536 {
-			return port, nil
-		}
-		return port, fmt.Errorf("invalid port number: %v", port)
+		port = param.IntVal
 	case util.IntstrString:
-		port = findPortByName(container, param.StrVal)
-		if port == -1 {
+		if port, err = findPortByName(container, param.StrVal); err != nil {
 			// Last ditch effort - maybe it was an int stored as string?
 			if port, err = strconv.Atoi(param.StrVal); err != nil {
 				return port, err
 			}
 		}
-		if port > 0 && port < 65536 {
-			return port, nil
-		}
-		return port, fmt.Errorf("invalid port number: %v", port)
 	default:
 		return port, fmt.Errorf("IntOrString had no kind: %+v", param)
 	}
+	if port > 0 && port < 65536 {
+		return port, nil
+	}
+	return port, fmt.Errorf("invalid port number: %v", port)
 }
 
 // findPortByName is a helper function to look up a port in a container by name.
-// Returns the HostPort if found, -1 if not found.
-func findPortByName(container api.Container, portName string) int {
+func findPortByName(container api.Container, portName string) (int, error) {
 	for _, port := range container.Ports {
 		if port.Name == portName {
-			return port.HostPort
+			return port.HostPort, nil
 		}
 	}
-	return -1
+	return 0, fmt.Errorf("port %s not found", portName)
+}
+
+// formatURL formats a URL from args.  For testability.
+func formatURL(scheme string, host string, port int, path string) *url.URL {
+	return &url.URL{
+		Scheme: scheme,
+		Host:   net.JoinHostPort(host, strconv.Itoa(port)),
+		Path:   path,
+	}
 }
 
 type execInContainer struct {

pkg/kubelet/prober/prober_test.go

@@ -25,6 +25,25 @@ import (
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/util/exec"
 )
 
+func TestFormatURL(t *testing.T) {
+	testCases := []struct {
+		scheme string
+		host   string
+		port   int
+		path   string
+		result string
+	}{
+		{"http", "localhost", 93, "", "http://localhost:93"},
+		{"https", "localhost", 93, "/path", "https://localhost:93/path"},
+	}
+	for _, test := range testCases {
+		url := formatURL(test.scheme, test.host, test.port, test.path)
+		if url.String() != test.result {
+			t.Errorf("Expected %s, got %s", test.result, url.String())
+		}
+	}
+}
+
 func TestFindPortByName(t *testing.T) {
 	container := api.Container{
 		Ports: []api.ContainerPort{
@@ -39,9 +58,9 @@ func TestFindPortByName(t *testing.T) {
 		},
 	}
 	want := 8080
-	got := findPortByName(container, "foo")
-	if got != want {
-		t.Errorf("Expected %v, got %v", want, got)
+	got, err := findPortByName(container, "foo")
+	if got != want || err != nil {
+		t.Errorf("Expected %v, got %v, err: %v", want, got, err)
 	}
 }
 
@@ -73,13 +92,23 @@ func TestGetURLParts(t *testing.T) {
 				},
 			},
 		}
-		p, err := extractPort(test.probe.Port, container)
+
+		scheme := test.probe.Scheme
+		if scheme == "" {
+			scheme = api.URISchemeHTTP
+		}
+		host := test.probe.Host
+		if host == "" {
+			host = state.PodIP
+		}
+		port, err := extractPort(test.probe.Port, container)
 		if test.ok && err != nil {
 			t.Errorf("Unexpected error: %v", err)
 		}
-		host, port, path := extractGetParams(test.probe, state, p)
+		path := test.probe.Path
+
 		if !test.ok && err == nil {
-			t.Errorf("Expected error for %+v, got %s:%d/%s", test, host, port, path)
+			t.Errorf("Expected error for %+v, got %s%s:%d/%s", test, scheme, host, port, path)
 		}
 		if test.ok {
 			if host != test.host || port != test.port || path != test.path {

pkg/probe/http/http.go

@@ -17,11 +17,10 @@ limitations under the License.
 package http
 
 import (
+	"crypto/tls"
 	"io/ioutil"
-	"net"
 	"net/http"
 	"net/url"
-	"strconv"
 	"time"
 
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/probe"
@@ -30,12 +29,13 @@ import (
 )
 
 func New() HTTPProber {
-	transport := &http.Transport{}
+	tlsConfig := &tls.Config{InsecureSkipVerify: true}
+	transport := &http.Transport{TLSClientConfig: tlsConfig}
 	return httpProber{transport}
 }
 
 type HTTPProber interface {
-	Probe(host string, port int, path string, timeout time.Duration) (probe.Result, string, error)
+	Probe(url *url.URL, timeout time.Duration) (probe.Result, string, error)
 }
 
 type httpProber struct {
@@ -43,8 +43,8 @@ type httpProber struct {
 }
 
 // Probe returns a ProbeRunner capable of running an http check.
-func (pr httpProber) Probe(host string, port int, path string, timeout time.Duration) (probe.Result, string, error) {
-	return DoHTTPProbe(formatURL(host, port, path), &http.Client{Timeout: timeout, Transport: pr.transport})
+func (pr httpProber) Probe(url *url.URL, timeout time.Duration) (probe.Result, string, error) {
+	return DoHTTPProbe(url, &http.Client{Timeout: timeout, Transport: pr.transport})
 }
 
 type HTTPGetInterface interface {
@@ -55,8 +55,8 @@ type HTTPGetInterface interface {
 // If the HTTP response code is successful (i.e. 400 > code >= 200), it returns Success.
 // If the HTTP response code is unsuccessful or HTTP communication fails, it returns Failure.
 // This is exported because some other packages may want to do direct HTTP probes.
-func DoHTTPProbe(url string, client HTTPGetInterface) (probe.Result, string, error) {
-	res, err := client.Get(url)
+func DoHTTPProbe(url *url.URL, client HTTPGetInterface) (probe.Result, string, error) {
+	res, err := client.Get(url.String())
 	if err != nil {
 		// Convert errors into failures to catch timeouts.
 		return probe.Failure, err.Error(), nil
@@ -68,18 +68,9 @@ func DoHTTPProbe(url string, client HTTPGetInterface) (probe.Result, string, err
 	}
 	body := string(b)
 	if res.StatusCode >= http.StatusOK && res.StatusCode < http.StatusBadRequest {
+		glog.V(4).Infof("Probe succeeded for %s, Response: %v", url.String(), *res)
 		return probe.Success, body, nil
 	}
-	glog.V(4).Infof("Probe failed for %s, Response: %v", url, *res)
+	glog.V(4).Infof("Probe failed for %s, Response: %v", url.String(), *res)
 	return probe.Failure, body, nil
 }
-
-// formatURL formats a URL from args.  For testability.
-func formatURL(host string, port int, path string) string {
-	u := url.URL{
-		Scheme: "http",
-		Host:   net.JoinHostPort(host, strconv.Itoa(port)),
-		Path:   path,
-	}
-	return u.String()
-}

pkg/probe/http/http_test.go

@@ -29,24 +29,6 @@ import (
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/probe"
 )
 
-func TestFormatURL(t *testing.T) {
-	testCases := []struct {
-		host   string
-		port   int
-		path   string
-		result string
-	}{
-		{"localhost", 93, "", "http://localhost:93"},
-		{"localhost", 93, "/path", "http://localhost:93/path"},
-	}
-	for _, test := range testCases {
-		url := formatURL(test.host, test.port, test.path)
-		if url != test.result {
-			t.Errorf("Expected %s, got %s", test.result, url)
-		}
-	}
-}
-
 func TestHTTPProbeChecker(t *testing.T) {
 	handleReq := func(s int, body string) func(w http.ResponseWriter) {
 		return func(w http.ResponseWriter) {
@@ -74,15 +56,15 @@ func TestHTTPProbeChecker(t *testing.T) {
 		if err != nil {
 			t.Errorf("Unexpected error: %v", err)
 		}
-		host, port, err := net.SplitHostPort(u.Host)
+		_, port, err := net.SplitHostPort(u.Host)
 		if err != nil {
 			t.Errorf("Unexpected error: %v", err)
 		}
-		p, err := strconv.Atoi(port)
+		_, err = strconv.Atoi(port)
 		if err != nil {
 			t.Errorf("Unexpected error: %v", err)
 		}
-		health, output, err := prober.Probe(host, p, "", 1*time.Second)
+		health, output, err := prober.Probe(u, 1*time.Second)
 		if test.health == probe.Unknown && err == nil {
 			t.Errorf("Expected error")
 		}