Barak Korren created OVIRT-2340:
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Summary: Unable to run containers with the '-p' option
Key: OVIRT-2340
URL:
https://ovirt-jira.atlassian.net/browse/OVIRT-2340
Project: oVirt - virtualization made easy
Issue Type: Bug
Components: Jenkins Slaves
Reporter: Barak Korren
Assignee: infra
Priority: High
When trying to run containers that expose ports we can get the following error:
{code}
/usr/bin/docker-current: Error response from daemon: driver failed programming external
connectivity on endpoint silly_sammet
(90b600ff5b0e6c2e708e8cd5086b518596dbe7ac4fa2735bec52d3a88e1ae004): (iptables failed:
iptables --wait -t nat -A DOCKER -p tcp -d 0/0 --dport 4444 -j DNAT --to-destination
172.17.0.2:3333 ! -i docker0: iptables: No chain/target/match by that name.
(exit status 1)).
{code}
We can reproduce this for example wiht the following command:
{code}
sudo docker run -it --rm -p 4444:3333 centos
{code}
Further information:
# This seems to be happening because the "DOCKER" chain is missing in iptables.
# We've seen this happen constantly on FC28 slaves but not on EL7 slaves
# Restarting the docker service recreates the iptables chain and effectively resolves the
issue
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