upgrade to latest dependencies (#386)

Signed-off-by: Knative Automation <automation@knative.team>

go.mod

@@ -18,7 +18,7 @@ require (
 	k8s.io/code-generator v0.18.8
 	k8s.io/kube-openapi v0.0.0-20200410145947-bcb3869e6f29
 	knative.dev/hack v0.0.0-20201112185459-01a34c573bd8
-	knative.dev/pkg v0.0.0-20201112201059-93fedf141385
+	knative.dev/pkg v0.0.0-20201117020252-ab1a398f669c
 )
 
 replace (

go.sum

@@ -1129,12 +1129,10 @@ k8s.io/kube-openapi v0.0.0-20200410145947-61e04a5be9a6/go.mod h1:GRQhZsXIAJ1xR0C
 k8s.io/utils v0.0.0-20200324210504-a9aa75ae1b89/go.mod h1:sZAwmy6armz5eXlNoLmJcl4F1QuKu7sr+mFQ0byX7Ew=
 k8s.io/utils v0.0.0-20200603063816-c1c6865ac451 h1:v8ud2Up6QK1lNOKFgiIVrZdMg7MpmSnvtrOieolJKoE=
 k8s.io/utils v0.0.0-20200603063816-c1c6865ac451/go.mod h1:jPW/WVKK9YHAvNhRxK0md/EJ228hCsBRufyofKtW8HA=
-knative.dev/hack v0.0.0-20201103151104-3d5abc3a0075 h1:YAgWplKIy4O5e3F5vUUECmXAAyZ0M5ymo6fCt1jeZhs=
-knative.dev/hack v0.0.0-20201103151104-3d5abc3a0075/go.mod h1:PHt8x8yX5Z9pPquBEfIj0X66f8iWkWfR0S/sarACJrI=
 knative.dev/hack v0.0.0-20201112185459-01a34c573bd8 h1:RNbZsAjhswBPtl4C5C5gEFX5/GfWIOZQxfYD9DhkHdY=
 knative.dev/hack v0.0.0-20201112185459-01a34c573bd8/go.mod h1:PHt8x8yX5Z9pPquBEfIj0X66f8iWkWfR0S/sarACJrI=
-knative.dev/pkg v0.0.0-20201112201059-93fedf141385 h1:DcYWVnDpcvKZR/Rh+8X2Qkq89jbBo6yLNV1qBifovBk=
-knative.dev/pkg v0.0.0-20201112201059-93fedf141385/go.mod h1:5vNHKNtZtzlNeNrcDoUtZIn+dma/8DjmpjfdHiwoQyM=
+knative.dev/pkg v0.0.0-20201117020252-ab1a398f669c h1:dMBwabvusJrldjzIj4lces/96SnVgFXV7Kpv9z9fiCI=
+knative.dev/pkg v0.0.0-20201117020252-ab1a398f669c/go.mod h1:4kXxEyYWdNk3pUR6/cx/ToMKG/dAJvEpDYUfV5RYHeU=
 pgregory.net/rapid v0.3.3/go.mod h1:UYpPVyjFHzYBGHIxLFoupi8vwk6rXNzRY9OMvVxFIOU=
 rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
 rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=

vendor/knative.dev/pkg/network/network.go

@@ -17,6 +17,7 @@ limitations under the License.
 package network
 
 import (
+	"fmt"
 	"net/http"
 	"strings"
 	"time"
@@ -54,6 +55,16 @@ const (
 	// included in request metrics.
 	ProbeHeaderName = "K-Network-Probe"
 
+	// ProbeHeaderValue is the value of a header that can be added to
+	// requests to probe the knative networking layer.  Requests
+	// with `K-Network-Probe` this value will not be passed to the user
+	// container or included in request metrics.
+	ProbeHeaderValue = "probe"
+
+	// HashHeaderName is the name of an internal header that Ingress controller
+	// uses to find out which version of the networking config is deployed.
+	HashHeaderName = "K-Network-Hash"
+
 	// Since K8s 1.8, prober requests have
 	//   User-Agent = "kube-probe/{major-version}.{minor-version}".
 	KubeProbeUAPrefix = "kube-probe/"
@@ -68,3 +79,19 @@ func IsKubeletProbe(r *http.Request) bool {
 	return strings.HasPrefix(r.Header.Get("User-Agent"), KubeProbeUAPrefix) ||
 		r.Header.Get(KubeletProbeHeaderName) != ""
 }
+
+// IsKProbe returns true if the request is a knatvie probe.
+func IsKProbe(r *http.Request) bool {
+	return r.Header.Get(ProbeHeaderName) == ProbeHeaderValue
+}
+
+// ServeKProbe serve KProbe requests.
+func ServeKProbe(w http.ResponseWriter, r *http.Request) {
+	hh := r.Header.Get(HashHeaderName)
+	if hh == "" {
+		http.Error(w, fmt.Sprintf("a probe request must contain a non-empty %q header", HashHeaderName), http.StatusBadRequest)
+		return
+	}
+	w.Header().Set(HashHeaderName, hh)
+	w.WriteHeader(http.StatusOK)
+}

vendor/modules.txt

@@ -742,7 +742,7 @@ k8s.io/utils/trace
 # knative.dev/hack v0.0.0-20201112185459-01a34c573bd8
 ## explicit
 knative.dev/hack
-# knative.dev/pkg v0.0.0-20201112201059-93fedf141385
+# knative.dev/pkg v0.0.0-20201117020252-ab1a398f669c
 ## explicit
 knative.dev/pkg/apis
 knative.dev/pkg/apis/duck