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fix access to nil *url.URL (#1180)

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* fix access to nil *url.URL

Signed-off-by: Megrez Lu <lujiajing1126@gmail.com>

* Update lib/promscrape/discovery/kubernetes/api_watcher.go

Co-authored-by: Aliaksandr Valialkin <valyala@gmail.com>
This commit is contained in:
Lu Jiajing 2021-04-06 03:25:31 +08:00 committed by Aliaksandr Valialkin
parent 7eca60694e
commit 4ee6def68b
1 changed files with 6 additions and 2 deletions
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8
lib/promscrape/discovery/kubernetes/api_watcher.go
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@ -190,8 +190,12 @@ func newGroupWatcher(apiServer string, ac *promauth.Config, namespaces []string,
}
func getGroupWatcher(apiServer string, ac *promauth.Config, namespaces []string, selectors []Selector, proxyURL *url.URL) *groupWatcher {
key := fmt.Sprintf("apiServer=%s, namespaces=%s, selectors=%s, proxyURL=%v, authConfig=%s",
apiServer, namespaces, selectorsKey(selectors), proxyURL, ac.String())
proxyURLStr := "<nil>"
if proxyURL != nil {
proxyURLStr = proxyURL.String()
}
key := fmt.Sprintf("apiServer=%s, namespaces=%s, selectors=%s, proxyURL=%s, authConfig=%s",
apiServer, namespaces, selectorsKey(selectors), proxyURLStr, ac.String())
groupWatchersLock.Lock()
gw := groupWatchers[key]
if gw == nil {