Pipe STDOUT/STDERR into logger

[und1sk0]

• Adds a rsyslog.d/21-rotated-docker.conf file for rsyslog to trap docker upstart logs in /var/log/runnable/<YYYY/MM/DD/HH>/.../docker.log
• Adds a etc/init/docker.conf file to handle the upstart output

Dependancies

Server must be rebooted or docker-engine restarted.

Reviewers

• @bkendall
• @rsandor

Tests

Test any modifications on one of our environments.

• tested on epsilon by @und1sk0

Deployment (post-merge)

Ensure that all environments have the given changes.

• deployed to epsilon
• deployed to gamma
• deployed to delta

[bkendall]

This! this is the line that's different! I found it!

[bkendall]

can you put a comment somewhere in this file either at the top describing the changes or comments where the changes are?

[rsandor]

@und1sk0 - double check dock-init to ensure we aren't overwriting this file anymore, plz.

[und1sk0]

@rsandor dock-init updates /etc/default/docker, different file. This updates the upstart config (/etc/init/docker.conf)

[bkendall]

LGTM - does mean that we have to have a small (< 60 second, likely) downtime for the services that we have running in docker to update this...