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Merge pull request #110875 from marquiz/devel/e2e

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test/e2e: fix GetCurrentKubeletConfig
This commit is contained in:
Kubernetes Prow Robot 2022-06-30 09:06:21 -07:00 committed by GitHub
commit 019141a13c
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1 changed files with 16 additions and 12 deletions
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28
test/e2e/framework/kubelet/config.go
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@ -38,7 +38,7 @@ import (
// GetCurrentKubeletConfig fetches the current Kubelet Config for the given node
func GetCurrentKubeletConfig(nodeName, namespace string, useProxy bool) (*kubeletconfig.KubeletConfiguration, error) {
resp := pollConfigz(5*time.Minute, 5*time.Second, nodeName, namespace, useProxy)
if resp == nil {
if len(resp) == 0 {
return nil, fmt.Errorf("failed to fetch /configz from %q", nodeName)
}
kubeCfg, err := decodeConfigz(resp)
@ -49,7 +49,7 @@ func GetCurrentKubeletConfig(nodeName, namespace string, useProxy bool) (*kubele
}
// returns a status 200 response from the /configz endpoint or nil if fails
func pollConfigz(timeout time.Duration, pollInterval time.Duration, nodeName, namespace string, useProxy bool) *http.Response {
func pollConfigz(timeout time.Duration, pollInterval time.Duration, nodeName, namespace string, useProxy bool) []byte {
endpoint := ""
if useProxy {
// start local proxy, so we can send graceful deletion over query string, rather than body parameter
@ -88,26 +88,35 @@ func pollConfigz(timeout time.Duration, pollInterval time.Duration, nodeName, na
}
req.Header.Add("Accept", "application/json")
var resp *http.Response
var respBody []byte
err = wait.PollImmediate(pollInterval, timeout, func() (bool, error) {
resp, err = client.Do(req)
resp, err := client.Do(req)
if err != nil {
framework.Logf("Failed to get /configz, retrying. Error: %v", err)
return false, nil
}
defer resp.Body.Close()
if resp.StatusCode != 200 {
framework.Logf("/configz response status not 200, retrying. Response was: %+v", resp)
return false, nil
}
respBody, err = io.ReadAll(resp.Body)
if err != nil {
framework.Logf("failed to read body from /configz response, retrying. Error: %v", err)
return false, nil
}
return true, nil
})
framework.ExpectNoError(err, "Failed to get successful response from /configz")
return resp
return respBody
}
// Decodes the http response from /configz and returns a kubeletconfig.KubeletConfiguration (internal type).
func decodeConfigz(resp *http.Response) (*kubeletconfig.KubeletConfiguration, error) {
func decodeConfigz(respBody []byte) (*kubeletconfig.KubeletConfiguration, error) {
// This hack because /configz reports the following structure:
// {"kubeletconfig": {the JSON representation of kubeletconfigv1beta1.KubeletConfiguration}}
type configzWrapper struct {
@ -117,12 +126,7 @@ func decodeConfigz(resp *http.Response) (*kubeletconfig.KubeletConfiguration, er
configz := configzWrapper{}
kubeCfg := kubeletconfig.KubeletConfiguration{}
contentsBytes, err := io.ReadAll(resp.Body)
if err != nil {
return nil, err
}
err = json.Unmarshal(contentsBytes, &configz)
err := json.Unmarshal(respBody, &configz)
if err != nil {
return nil, err
}