kuryr-libnetwork docker image did not output

[Liping Mao]

We have the following guide to run kuryr-libnetwork container image:
https://github.com/openstack/kuryr-libnetwork#how-to-run-the-container

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sudo mkdir -p /usr/lib/docker/plugins/kuryr
sudo curl -o /usr/lib/docker/plugins/kuryr/kuryr.spec \
https://raw.githubusercontent.com/openstack/kuryr-libnetwork/master/etc/kuryr.spec
sudo service docker restart

Then we start the container::

docker run --name kuryr-libnetwork \
  --net=host \
  --cap-add=NET_ADMIN \
  -e SERVICE_USER=admin \
  -e SERVICE_PROJECT_NAME=admin \
  -e SERVICE_PASSWORD=admin \
  -e SERVICE_DOMAIN_NAME=Default \
  -e USER_DOMAIN_NAME=Default \
  -e IDENTITY_URL=http://127.0.0.1:35357/v3 \
  -v /var/log/kuryr:/var/log/kuryr \
  -v /var/run/openvswitch:/var/run/openvswitch \
  kuryr/libnetwork
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

But the log did not output into /var/log/kuryr. This is because we did not configure in /etc/kuryr/kuryr.conf:
log_dir = /var/log/kuryr
log_file = kuryr.log

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/441645
Committed: https://git.openstack.org/cgit/openstack/kuryr-libnetwork/commit/?id=f96605c9d54776ed55615295c02e32dd9754201e
Submitter: Jenkins
Branch: master

commit f96605c9d54776ed55615295c02e32dd9754201e
Author: Liping Mao (limao) <email address hidden>
Date: Sun Mar 5 13:02:09 2017 +0800

    Add default log_file and log_dir in kuryr-libnetwork docker image

    Change-Id: Ibe308dd30eed17f0183edaa9cb44fab9e43cd852
    Closes-bug: #1670063