Merge pull request #96681 from tkashem/request-timout-e2e

Use default value when the specified timeout for a request is 0s
This commit is contained in:
Kubernetes Prow Robot 2020-11-18 11:44:05 -08:00 committed by GitHub
commit b381baab66
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4 changed files with 127 additions and 1 deletions

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@ -69,7 +69,10 @@ func WithRequestDeadline(handler http.Handler, longRunning request.LongRunningRe
return
}
timeout = userSpecifiedTimeout
// if the user has specified a timeout of 0s, this means no timeout, so we should use the maximum timeout allowed.
if userSpecifiedTimeout != 0 {
timeout = userSpecifiedTimeout
}
}
ctx, cancel := context.WithTimeout(ctx, timeout)

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@ -94,6 +94,15 @@ func TestWithRequestDeadline(t *testing.T) {
deadlineExpected: 14 * time.Second, // to account for the delay in verification
statusCodeExpected: http.StatusOK,
},
{
name: "the specified timeout is 0s, default deadline is expected to be set",
requestURL: "/api/v1/namespaces?timeout=0s",
longRunning: false,
handlerCallCountExpected: 1,
hasDeadlineExpected: true,
deadlineExpected: requestTimeoutMaximum - time.Second, // to account for the delay in verification
statusCodeExpected: http.StatusOK,
},
{
name: "the user does not specify any request timeout, default deadline is expected to be set",
requestURL: "/api/v1/namespaces?timeout=",

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@ -25,6 +25,7 @@ go_library(
"health_handlers.go",
"namespace.go",
"protocol.go",
"request_timeout.go",
"resource_quota.go",
"server_version.go",
"table_conversion.go",

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@ -0,0 +1,113 @@
/*
Copyright 2020 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package apimachinery
import (
"io/ioutil"
"net/http"
"strings"
"github.com/onsi/ginkgo"
"k8s.io/client-go/rest"
"k8s.io/kubernetes/test/e2e/framework"
)
const (
invalidTimeoutMessageExpected = "invalid timeout specified in the request URL"
timeoutExceedsMaximumExpected = "timeout specified in the request URL exceeds the maximum timeout allowed by the server"
)
var _ = SIGDescribe("Server request timeout", func() {
f := framework.NewDefaultFramework("request-timeout")
ginkgo.It("should return HTTP status code 400 if the user specifies an invalid timeout in the request URL", func() {
rt := getRoundTripper(f)
req := newRequest(f, "invalid")
response, err := rt.RoundTrip(req)
framework.ExpectNoError(err)
defer response.Body.Close()
if response.StatusCode != http.StatusBadRequest {
framework.Failf("expected HTTP status code: %d, but got: %d", http.StatusBadRequest, response.StatusCode)
}
messageGot := readBody(response)
if !strings.Contains(messageGot, invalidTimeoutMessageExpected) {
framework.Failf("expected HTTP status message to contain: %s, but got: %s", invalidTimeoutMessageExpected, messageGot)
}
})
ginkgo.It("should return HTTP status code 400 if the specified timeout in the request URL exceeds maximum allowed", func() {
rt := getRoundTripper(f)
// Choose a timeout that exceeds the default timeout (60s) enforced by the apiserver
req := newRequest(f, "3m")
response, err := rt.RoundTrip(req)
framework.ExpectNoError(err)
defer response.Body.Close()
if response.StatusCode != http.StatusBadRequest {
framework.Failf("expected HTTP status code: %d, but got: %d", http.StatusBadRequest, response.StatusCode)
}
messageGot := readBody(response)
if !strings.Contains(messageGot, timeoutExceedsMaximumExpected) {
framework.Failf("expected HTTP status message to contain: %s, but got: %s", timeoutExceedsMaximumExpected, messageGot)
}
})
ginkgo.It("default timeout should be used if the specified timeout in the request URL is 0s", func() {
rt := getRoundTripper(f)
req := newRequest(f, "0s")
response, err := rt.RoundTrip(req)
framework.ExpectNoError(err)
defer response.Body.Close()
if response.StatusCode != http.StatusOK {
framework.Failf("expected HTTP status code: %d, but got: %d", http.StatusOK, response.StatusCode)
}
})
})
func getRoundTripper(f *framework.Framework) http.RoundTripper {
config := rest.CopyConfig(f.ClientConfig())
// ensure we don't enforce any transport timeout from the client side.
config.Timeout = 0
roundTripper, err := rest.TransportFor(config)
framework.ExpectNoError(err)
return roundTripper
}
func newRequest(f *framework.Framework, timeout string) *http.Request {
req, err := http.NewRequest(http.MethodGet, f.ClientSet.CoreV1().RESTClient().Get().
Param("timeout", timeout).AbsPath("version").URL().String(), nil)
framework.ExpectNoError(err)
return req
}
func readBody(response *http.Response) string {
raw, err := ioutil.ReadAll(response.Body)
framework.ExpectNoError(err)
return string(raw)
}