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add comment explaining why we remove trailing dots in searches

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Fernando Crespo Gravalos
2019-09-26 10:04:01 +02:00
committed by Fernando Crespo Grávalos
parent a215a88d91
commit 0b850c5d82
1 changed files with 1 additions and 0 deletions
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pkg/kubelet/network/dns/dns.go
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@@ -230,6 +230,7 @@ func parseResolvConf(reader io.Reader) (nameservers []string, searches []string,
} }
} }
if fields[0] == "search" { if fields[0] == "search" {
// Strip redundant trailing dot to avoid hitting search validation limits.
trimTrailingDot := []string{} trimTrailingDot := []string{}
for _, s := range fields[1:] { for _, s := range fields[1:] {
trimTrailingDot = append(trimTrailingDot, strings.TrimSuffix(s, ".")) trimTrailingDot = append(trimTrailingDot, strings.TrimSuffix(s, "."))