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Merge pull request #33595 from freehan/fix-reboot-ifdownup

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Automatic merge from submit-queue

try to use ifdown/ifup if available

Tried this on both ContainerVM and GCI image. 

`ip link set eth0 down` is too destructive for containerVM. It could not recover with correct network setup hence failing the test. Need to use ifdown/ifup on containerVM. 

reference:
http://serverfault.com/questions/603906/ip-link-set-not-assigning-ip-address-but-ifup-does
This commit is contained in:
Kubernetes Submit Queue 2016-10-07 15:22:05 -07:00 committed by GitHub
commit 0c7b9b8f18
1 changed files with 1 additions and 1 deletions
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test/e2e/reboot.go
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@ -106,7 +106,7 @@ var _ = framework.KubeDescribe("Reboot [Disruptive] [Feature:Reboot]", func() {
It("each node by switching off the network interface and ensure they function upon switch on", func() {
// switch the network interface off for a while to simulate a network outage
// We sleep 10 seconds to give some time for ssh command to cleanly finish before network is down.
testReboot(f.Client, "nohup sh -c 'sleep 10 && sudo ip link set eth0 down && sleep 120 && sudo ip link set eth0 up' >/dev/null 2>&1 &")
testReboot(f.Client, "nohup sh -c 'sleep 10 && (sudo ifdown eth0 || sudo ip link set eth0 down) && sleep 120 && (sudo ifup eth0 || sudo ip link set eth0 up)' >/dev/null 2>&1 &")
})
It("each node by dropping all inbound packets for a while and ensure they function afterwards", func() {