[Backport 17.06] Possible race on ingress programming#2195
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Make sure that iptables operations on ingress are serialized. Before 2 racing routines trying to create the ingress chain were allowed and one was failing reporting the chain as already existing. The lock guarantees that this condition does not happen anymore Signed-off-by: Flavio Crisciani <flavio.crisciani@docker.com> (cherry picked from commit 7bb62d0)
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@fcrisciani is cherry-pick clean? |
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@andrewhsu yep |
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backport of #2178
Make sure that iptables operations on ingress
are serialized.
Before 2 racing routines trying to create the ingress chain
were allowed and one was failing reporting the chain as
already existing.
The lock guarantees that this condition does not happen anymore
Signed-off-by: Flavio Crisciani flavio.crisciani@docker.com
(cherry picked from commit 7bb62d0)