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tests: Makes UDP testing command more Windows friendly

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By default, cmd is used to execute commands in Windows containers, but it
has some issues executing the command (no output):

echo 'hostName' | nc -w 1 -u <targetIP> <targetPort>

But it has no issues running (output is correct):

echo hostName | nc -w 1 -u <targetIP> <targetPort>

This causes the test "should function for node-pod communication: udp" to
fail when using Windows Containers.
This commit is contained in:
Claudiu Belu 2019-01-11 03:53:28 -08:00
parent f364b65ed6
commit 72be895238
1 changed files with 1 additions and 1 deletions
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2
test/e2e/framework/networking_utils.go
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@ -292,7 +292,7 @@ func (config *NetworkingTestConfig) DialFromNode(protocol, targetIP string, targ
if protocol == "udp" {
// TODO: It would be enough to pass 1s+epsilon to timeout, but unfortunately
// busybox timeout doesn't support non-integer values.
cmd = fmt.Sprintf("echo 'hostName' | nc -w 1 -u %s %d", targetIP, targetPort)
cmd = fmt.Sprintf("echo hostName | nc -w 1 -u %s %d", targetIP, targetPort)
} else {
ipPort := net.JoinHostPort(targetIP, strconv.Itoa(targetPort))
// The current versions of curl included in CentOS and RHEL distros